Panda3D
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A basic node of the scene graph or data graph. More...
#include "pandaNode.h"
Classes | |
class | BamReaderAuxDataDown |
class | BoundsData |
class | CData |
class | Children |
class | DownConnection |
class | Parents |
class | Stashed |
class | UpConnection |
Public Types | |
enum | FancyBits { FB_transform = 0x0001, FB_state = 0x0002, FB_effects = 0x0004, FB_tag = 0x0010, FB_draw_mask = 0x0020, FB_cull_callback = 0x0040 } |
typedef bool | SceneRootFunc (const PandaNode *) |
enum | UnexpectedChange { UC_parents = 0x001, UC_children = 0x002, UC_transform = 0x004, UC_state = 0x008, UC_draw_mask = 0x010 } |
Public Member Functions | |
PandaNode (const string &name) | |
void | add_child (PandaNode *child_node, int sort=0, Thread *current_thread=Thread::get_current_thread()) |
Adds a new child to the node. | |
virtual void | add_for_draw (CullTraverser *trav, CullTraverserData &data) |
Adds the node's contents to the CullResult we are building up during the cull traversal, so that it will be drawn at render time. | |
void | add_stashed (PandaNode *child_node, int sort=0, Thread *current_thread=Thread::get_current_thread()) |
Adds a new child to the node, directly as a stashed child. | |
void | adjust_draw_mask (DrawMask show_mask, DrawMask hide_mask, DrawMask clear_mask) |
Adjusts the hide/show bits of this particular node. | |
virtual void | apply_attribs_to_vertices (const AccumulatedAttribs &attribs, int attrib_types, GeomTransformer &transformer) |
Applies whatever attributes are specified in the AccumulatedAttribs object (and by the attrib_types bitmask) to the vertices on this node, if appropriate. | |
virtual Light * | as_light () |
Cross-casts the node to a Light pointer, if it is one of the four kinds of Light nodes, or returns NULL if it is not. | |
virtual ReferenceCount * | as_reference_count () |
Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type. | |
void | clear_attrib (int slot) |
Removes the render attribute of the given type from this node. | |
void | clear_attrib (TypeHandle type) |
Removes the render attribute of the given type from this node. | |
void | clear_bounds () |
Reverses the effect of a previous call to set_bounds(), and allows the node's bounding volume to be automatically computed once more based on the contents of the node. | |
void | clear_effect (TypeHandle type) |
Removes the render effect of the given type from this node. | |
void | clear_effects (Thread *current_thread=Thread::get_current_thread()) |
Resets this node to have no render effects. | |
void | clear_state (Thread *current_thread=Thread::get_current_thread()) |
Resets this node to leave the render state alone. | |
void | clear_tag (const string &key, Thread *current_thread=Thread::get_current_thread()) |
Removes the value defined for this key on this particular node. | |
void | clear_transform (Thread *current_thread=Thread::get_current_thread()) |
Resets the transform on this node to the identity transform. | |
void | clear_unexpected_change (unsigned int flags) |
Sets one or more of the PandaNode::UnexpectedChange bits off, indicating that the corresponding property may once again change on this node. | |
virtual PandaNode * | combine_with (PandaNode *other) |
Collapses this PandaNode with the other PandaNode, if possible, and returns a pointer to the combined PandaNode, or NULL if the two PandaNodes cannot safely be combined. | |
int | compare_tags (const PandaNode *other) const |
Returns a number less than 0, 0, or greater than 0, to indicate the similarity of tags between this node and the other one. | |
void | copy_all_properties (PandaNode *other) |
Copies the TransformState, RenderState, RenderEffects, tags, Python tags, and the show/hide state from the other node onto this one. | |
void | copy_children (PandaNode *other, Thread *current_thread=Thread::get_current_thread()) |
Makes another instance of all the children of the other node, copying them to this node. | |
void | copy_tags (PandaNode *other) |
Copies all of the tags stored on the other node onto this node. | |
int | count_num_descendants () const |
Returns the number of nodes at and below this level. | |
virtual | CPT (TransformState) calc_tight_bounds(LPoint3 &min_point |
CPT (RenderAttrib) get_off_clip_planes(Thread *current_thread | |
CPT (BoundingVolume) get_bounds(Thread *current_thread | |
CPT (BoundingVolume) get_bounds(UpdateSeq &seq | |
CPT (BoundingVolume) get_internal_bounds(Thread *current_thread | |
virtual bool | cull_callback (CullTraverser *trav, CullTraverserData &data) |
This function will be called during the cull traversal to perform any additional operations that should be performed at cull time. | |
virtual PandaNode * | dupe_for_flatten () const |
This is similar to make_copy(), but it makes a copy for the specific purpose of flatten. | |
int | find_child (PandaNode *node, Thread *current_thread=Thread::get_current_thread()) const |
Returns the index of the indicated child node, if it is a child, or -1 if it is not. | |
int | find_parent (PandaNode *node, Thread *current_thread=Thread::get_current_thread()) const |
Returns the index of the indicated parent node, if it is a parent, or -1 if it is not. | |
int | find_stashed (PandaNode *node, Thread *current_thread=Thread::get_current_thread()) const |
Returns the index of the indicated stashed node, if it is a stashed child, or -1 if it is not. | |
virtual TypeHandle | force_init_type () |
const RenderAttrib * | get_attrib (TypeHandle type) const |
Returns the render attribute of the indicated type, if it is defined on the node, or NULL if it is not. | |
const RenderAttrib * | get_attrib (int slot) const |
Returns the render attribute of the indicated type, if it is defined on the node, or NULL if it is not. | |
BoundingVolume::BoundsType | get_bounds_type () const |
Returns the bounding volume type set with set_bounds_type(). | |
PandaNode * | get_child (int n, Thread *current_thread=Thread::get_current_thread()) const |
Returns the nth child node of this node. | |
int | get_child_sort (int n, Thread *current_thread=Thread::get_current_thread()) const |
Returns the sort index of the nth child node of this node (that is, the number that was passed to add_child()). | |
Children | get_children (Thread *current_thread=Thread::get_current_thread()) const |
Returns an object that can be used to walk through the list of children of the node. | |
DrawMask | get_draw_control_mask () const |
Returns the set of bits in draw_show_mask that are considered meaningful. | |
DrawMask | get_draw_show_mask () const |
Returns the hide/show bits of this particular node. | |
const RenderEffect * | get_effect (TypeHandle type) const |
Returns the render effect of the indicated type, if it is defined on the node, or NULL if it is not. | |
const RenderEffects * | get_effects (Thread *current_thread=Thread::get_current_thread()) const |
Returns the complete RenderEffects that will be applied to this node. | |
int | get_fancy_bits (Thread *current_thread=Thread::get_current_thread()) const |
Returns the union of all of the enum FancyBits values corresponding to the various "fancy" attributes that are set on the node. | |
virtual int | get_first_visible_child () const |
Returns the index number of the first visible child of this node, or a number >= get_num_children() if there are no visible children of this node. | |
int | get_internal_vertices (Thread *current_thread=Thread::get_current_thread()) const |
Returns the total number of vertices that will be rendered by this particular node alone, not accounting for its children. | |
CollideMask | get_into_collide_mask () const |
Returns the "into" collide mask for this node. | |
virtual CollideMask | get_legal_collide_mask () const |
Returns the subset of CollideMask bits that may be set for this particular type of PandaNode. | |
int | get_nested_vertices (Thread *current_thread=Thread::get_current_thread()) const |
Returns the total number of vertices that will be rendered by this node and all of its descendents. | |
CollideMask | get_net_collide_mask (Thread *current_thread=Thread::get_current_thread()) const |
Returns the union of all into_collide_mask() values set at CollisionNodes at this level and below. | |
DrawMask | get_net_draw_control_mask () const |
Returns the set of bits in get_net_draw_show_mask() that have been explicitly set via adjust_draw_mask(), rather than implicitly inherited. | |
DrawMask | get_net_draw_show_mask () const |
Returns the union of all draw_show_mask values--of renderable nodes only--at this level and below. | |
virtual int | get_next_visible_child (int n) const |
Returns the index number of the next visible child of this node following the indicated child, or a number >= get_num_children() if there are no more visible children of this node. | |
int | get_num_children (Thread *current_thread=Thread::get_current_thread()) const |
Returns the number of child nodes this node has. | |
int | get_num_parents (Thread *current_thread=Thread::get_current_thread()) const |
Returns the number of parent nodes this node has. | |
int | get_num_stashed (Thread *current_thread=Thread::get_current_thread()) const |
Returns the number of stashed nodes this node has. | |
PandaNode * | get_parent (int n, Thread *current_thread=Thread::get_current_thread()) const |
Returns the nth parent node of this node. | |
Parents | get_parents (Thread *current_thread=Thread::get_current_thread()) const |
Returns an object that can be used to walk through the list of parents of the node, similar to get_children() and get_stashed(). | |
const TransformState * | get_prev_transform (Thread *current_thread=Thread::get_current_thread()) const |
Returns the transform that has been set as this node's "previous" position. | |
PandaNode * | get_stashed (int n, Thread *current_thread=Thread::get_current_thread()) const |
Returns the nth stashed child of this node. | |
Stashed | get_stashed (Thread *current_thread=Thread::get_current_thread()) const |
Returns an object that can be used to walk through the list of children of the node. | |
int | get_stashed_sort (int n, Thread *current_thread=Thread::get_current_thread()) const |
Returns the sort index of the nth stashed node of this node (that is, the number that was passed to add_child()). | |
const RenderState * | get_state (Thread *current_thread=Thread::get_current_thread()) const |
Returns the complete RenderState that will be applied to all nodes at this level and below, as set on this node. | |
string | get_tag (const string &key, Thread *current_thread=Thread::get_current_thread()) const |
Retrieves the user-defined value that was previously set on this node for the particular key, if any. | |
const TransformState * | get_transform (Thread *current_thread=Thread::get_current_thread()) const |
Returns the transform that has been set on this particular node. | |
virtual TypeHandle | get_type () const |
unsigned int | get_unexpected_change (unsigned int flags) const |
Returns nonzero if any of the bits in the input parameter are set on this node, or zero if none of them are set. | |
virtual int | get_unsafe_to_apply_attribs () const |
Returns the union of all attributes from SceneGraphReducer::AttribTypes that may not safely be applied to the vertices of this node. | |
virtual int | get_visible_child () const |
Returns the index number of the currently visible child of this node. | |
bool | has_attrib (int slot) const |
Returns true if there is a render attribute of the indicated type defined on this node, or false if there is not. | |
bool | has_attrib (TypeHandle type) const |
Returns true if there is a render attribute of the indicated type defined on this node, or false if there is not. | |
bool | has_dirty_prev_transform () const |
Returns true if this node has the _dirty_prev_transform flag set, which indicates its _prev_transform is different from its _transform value (in pipeline stage 0). | |
bool | has_effect (TypeHandle type) const |
Returns true if there is a render effect of the indicated type defined on this node, or false if there is not. | |
virtual bool | has_selective_visibility () const |
Should be overridden by derived classes to return true if this kind of node has some restrictions on the set of children that should be rendered. | |
virtual bool | has_single_child_visibility () const |
Should be overridden by derived classes to return true if this kind of node has the special property that just one of its children is visible at any given time, and furthermore that the particular visible child can be determined without reference to any external information (such as a camera). | |
bool | has_tag (const string &key, Thread *current_thread=Thread::get_current_thread()) const |
Returns true if a value has been defined on this node for the particular key (even if that value is the empty string), or false if no value has been set. | |
bool | has_tags () const |
Returns true if the node has any tags (or any Python tags) at all, false if it has none. | |
virtual bool | is_ambient_light () const |
Returns true if this is an AmbientLight, false if it is not a light, or it is some other kind of light. | |
bool | is_bounds_stale () const |
Returns true if the bounding volume of this node is stale and will be implicitly recomputed at the next call to get_bounds(), or false if it is fresh and need not be recomputed. | |
virtual bool | is_collision_node () const |
A simple downcast check. | |
bool | is_final (Thread *current_thread=Thread::get_current_thread()) const |
Returns the current state of the "final" flag. | |
virtual bool | is_geom_node () const |
A simple downcast check. | |
virtual bool | is_lod_node () const |
A simple downcast check. | |
bool | is_overall_hidden () const |
Returns true if the node has been hidden to all cameras by clearing its overall bit. | |
virtual bool | is_renderable () const |
Returns true if there is some value to visiting this particular node during the cull traversal for any camera, false otherwise. | |
bool | is_scene_root () const |
Returns true if this particular node is known to be the render root of some active DisplayRegion associated with the global GraphicsEngine, false otherwise. | |
bool | is_under_scene_root () const |
Returns true if this particular node is in a live scene graph: that is, it is a child or descendent of a node that is itself a scene root. | |
void | list_tags (ostream &out, const string &separator="\n") const |
Writes a list of all the tag keys assigned to the node to the indicated stream. | |
void | ls (ostream &out, int indent_level) const |
Lists all the nodes at and below the current path hierarchically. | |
virtual PandaNode * | make_copy () const |
Returns a newly-allocated PandaNode that is a shallow copy of this one. | |
void | mark_bounds_stale (Thread *current_thread=Thread::get_current_thread()) const |
Indicates that the bounding volume, or something that influences the bounding volume (or any of the other things stored in CData, like net_collide_mask), may have changed for this node, and that it must be recomputed. | |
void | mark_internal_bounds_stale (Thread *current_thread=Thread::get_current_thread()) |
Should be called by a derived class to mark the internal bounding volume stale, so that compute_internal_bounds() will be called when the bounding volume is next requested. | |
virtual void | output (ostream &out) const |
Outputs the Namable. | |
void | prepare_scene (GraphicsStateGuardianBase *gsg, const RenderState *node_state) |
Walks through the scene graph beginning at this node, and does whatever initialization is required to render the scene properly with the indicated GSG. | |
virtual bool | preserve_name () const |
Returns true if the node's name has extrinsic meaning and must be preserved across a flatten operation, false otherwise. | |
PT (PandaNode) copy_subgraph(Thread *current_thread | |
virtual void | r_prepare_scene (GraphicsStateGuardianBase *gsg, const RenderState *node_state, GeomTransformer &transformer, Thread *current_thread) |
The recursive implementation of prepare_scene(). | |
void | remove_all_children (Thread *current_thread=Thread::get_current_thread()) |
Removes all the children from the node at once, including stashed children. | |
void | remove_child (int child_index, Thread *current_thread=Thread::get_current_thread()) |
Removes the nth child from the node. | |
bool | remove_child (PandaNode *child_node, Thread *current_thread=Thread::get_current_thread()) |
Removes the indicated child from the node. | |
void | remove_stashed (int child_index, Thread *current_thread=Thread::get_current_thread()) |
Removes the nth stashed child from the node. | |
bool | replace_child (PandaNode *orig_child, PandaNode *new_child, Thread *current_thread=Thread::get_current_thread()) |
Searches for the orig_child node in the node's list of children, and replaces it with the new_child instead. | |
void | replace_node (PandaNode *other) |
Inserts this node into the scene graph in place of the other one, and removes the other node. | |
void | reset_prev_transform (Thread *current_thread=Thread::get_current_thread()) |
Resets the transform that represents this node's "previous" position to the same as the current transform. | |
virtual bool | safe_to_combine () const |
Returns true if it is generally safe to combine this particular kind of PandaNode with other kinds of PandaNodes of compatible type, adding children or whatever. | |
virtual bool | safe_to_combine_children () const |
Returns true if it is generally safe to combine the children of this PandaNode with each other. | |
virtual bool | safe_to_flatten () const |
Returns true if it is generally safe to flatten out this particular kind of PandaNode by duplicating instances (by calling dupe_for_flatten()), false otherwise (for instance, a Camera cannot be safely flattened, because the Camera pointer itself is meaningful). | |
virtual bool | safe_to_flatten_below () const |
Returns true if a flatten operation may safely continue past this node, or false if nodes below this node may not be molested. | |
virtual bool | safe_to_modify_transform () const |
Returns true if it is safe to automatically adjust the transform on this kind of node. | |
virtual bool | safe_to_transform () const |
Returns true if it is generally safe to transform this particular kind of PandaNode by calling the xform() method, false otherwise. | |
void | set_attrib (const RenderAttrib *attrib, int override=0) |
Adds the indicated render attribute to the scene graph on this node. | |
void | set_bound (const BoundingVolume *volume) |
Deprecated. | |
void | set_bounds (const BoundingVolume *volume) |
Resets the bounding volume so that it is the indicated volume. | |
void | set_bounds_type (BoundingVolume::BoundsType bounds_type) |
Specifies the desired type of bounding volume that will be created for this node. | |
void | set_effect (const RenderEffect *effect) |
Adds the indicated render effect to the scene graph on this node. | |
void | set_effects (const RenderEffects *effects, Thread *current_thread=Thread::get_current_thread()) |
Sets the complete RenderEffects that will be applied this node. | |
void | set_final (bool flag) |
Sets the "final" flag on this PandaNode. | |
void | set_into_collide_mask (CollideMask mask) |
Sets the "into" CollideMask. | |
void | set_overall_hidden (bool overall_hidden) |
Sets or clears the hidden flag. | |
void | set_prev_transform (const TransformState *transform, Thread *current_thread=Thread::get_current_thread()) |
Sets the transform that represents this node's "previous" position, one frame ago, for the purposes of detecting motion for accurate collision calculations. | |
void | set_state (const RenderState *state, Thread *current_thread=Thread::get_current_thread()) |
Sets the complete RenderState that will be applied to all nodes at this level and below. | |
void | set_tag (const string &key, const string &value, Thread *current_thread=Thread::get_current_thread()) |
Associates a user-defined value with a user-defined key which is stored on the node. | |
void | set_transform (const TransformState *transform, Thread *current_thread=Thread::get_current_thread()) |
Sets the transform that will be applied to this node and below. | |
void | set_unexpected_change (unsigned int flags) |
Sets one or more of the PandaNode::UnexpectedChange bits on, indicating that the corresponding property should not change again on this node. | |
bool | stash_child (PandaNode *child_node, Thread *current_thread=Thread::get_current_thread()) |
Stashes the indicated child node. | |
void | stash_child (int child_index, Thread *current_thread=Thread::get_current_thread()) |
Stashes the indicated child node. | |
void | steal_children (PandaNode *other, Thread *current_thread=Thread::get_current_thread()) |
Moves all the children from the other node onto this node. | |
bool | unstash_child (PandaNode *child_node, Thread *current_thread=Thread::get_current_thread()) |
Returns the indicated stashed node to normal child status. | |
void | unstash_child (int stashed_index, Thread *current_thread=Thread::get_current_thread()) |
Returns the indicated stashed node to normal child status. | |
virtual void | update_bam_nested (BamWriter *manager) |
Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates. | |
virtual void | write (ostream &out, int indent_level) const |
virtual void | write_datagram (BamWriter *manager, Datagram &dg) |
Writes the contents of this object to the datagram for shipping out to a Bam file. | |
void | write_recorder (BamWriter *manager, Datagram &dg) |
This method is provided for the benefit of classes (like MouseRecorder) that inherit from PandaMode and also RecorderBase. | |
virtual void | xform (const LMatrix4 &mat) |
Transforms the contents of this PandaNode by the indicated matrix, if it means anything to do so. | |
Static Public Member Functions | |
static DrawMask | get_all_camera_mask () |
Returns a DrawMask that is appropriate for rendering to all cameras. | |
static TypeHandle | get_class_type () |
static DrawMask | get_overall_bit () |
Returns the special bit that, when specifically cleared in the node's DrawMask, indicates that the node is hidden to all cameras, regardless of the remaining DrawMask bits. | |
static void | init_type () |
static | PT (PandaNode) decode_from_bam_stream(const string &data |
static void | register_with_read_factory () |
Tells the BamReader how to create objects of type PandaNode. | |
static void | reset_all_prev_transform (Thread *current_thread=Thread::get_current_thread()) |
Visits all nodes in the world with the _dirty_prev_transform flag--that is, all nodes whose _prev_transform is different from the _transform in pipeline stage 0--and resets the _prev_transform to be the same as _transform. | |
static void | set_scene_root_func (SceneRootFunc *func) |
This is used by the GraphicsEngine to hook in a pointer to the scene_root_func(), the function to determine whether the node is an active scene root. | |
Public Attributes | |
virtual LPoint3 bool const TransformState Thread * | current_thread = Thread::get_current_thread()) const |
Thread * | current_thread = Thread::get_current_thread()) const |
virtual LPoint3 bool & | found_any |
virtual LPoint3 & | max_point |
static BamReader * | reader = NULL) |
virtual LPoint3 bool const TransformState * | transform |
Protected Types | |
typedef pmap< PandaNode *, PandaNode * > | InstanceMap |
Protected Member Functions | |
PandaNode (const PandaNode ©) | |
Do not call the copy constructor directly; instead, use make_copy() or copy_subgraph() to make a copy of a node. | |
virtual void | children_changed () |
Called after a scene graph update that either adds or remove children from this node, this just provides a hook for derived PandaNode objects that need to update themselves based on the set of children the node has. | |
virtual void | compute_internal_bounds (CPT(BoundingVolume)&internal_bounds, int &internal_vertices, int pipeline_stage, Thread *current_thread) const |
Returns a newly-allocated BoundingVolume that represents the internal contents of the node. | |
CPT (BoundingVolume) get_user_bounds(int pipeline_stage | |
CPT (BoundingVolume) get_internal_bounds(int pipeline_stage | |
void | disable_cull_callback () |
disables the call back | |
virtual void | draw_mask_changed () |
Called after the node's DrawMask has been changed for any reason, this just provides a hook so derived classes can do something special in this case. | |
void | fillin (DatagramIterator &scan, BamReader *manager) |
This internal function is called by make_from_bam to read in all of the relevant data from the BamFile for the new PandaNode. | |
void | fillin_recorder (DatagramIterator &scan, BamReader *manager) |
This internal function is called by make_recorder (in classes derived from RecorderBase, such as MouseRecorder) to read in all of the relevant data from the session file. | |
void | force_bounds_stale (int pipeline_stage, Thread *current_thread) |
Similar to mark_bounds_stale(), except that the parents of this node marked stale even if this node was already considered stale. | |
void | force_bounds_stale (Thread *current_thread=Thread::get_current_thread()) |
Similar to mark_bounds_stale(), except that the parents of this node marked stale even if this node was already considered stale. | |
int | get_internal_vertices (int pipeline_stage, Thread *current_thread) const |
Returns the total number of vertices that will be rendered by this particular node alone, not accounting for its children. | |
void | mark_bounds_stale (int pipeline_stage, Thread *current_thread) const |
Indicates that the bounding volume, or something that influences the bounding volume (or any of the other things stored in CData, like net_collide_mask), may have changed for this node, and that it must be recomputed. | |
void | mark_internal_bounds_stale (int pipeline_stage, Thread *current_thread) |
Should be called by a derived class to mark the internal bounding volume stale, so that recompute_internal_bounds() will be called when the bounding volume is next requested. | |
virtual void | parents_changed () |
Called after a scene graph update that either adds or remove parents from this node, this just provides a hook for derived PandaNode objects that need to update themselves based on the set of parents the node has. | |
virtual | PT (PandaNode) r_copy_subgraph(InstanceMap &inst_map |
virtual void | r_copy_children (const PandaNode *from, InstanceMap &inst_map, Thread *current_thread) |
This is called by r_copy_subgraph(); the copy has already been made of this particular node (and this is the copy); this function's job is to copy all of the children from the original. | |
virtual void | r_mark_geom_bounds_stale (Thread *current_thread) |
Recursively calls Geom::mark_bounds_stale() on every Geom at this node and below. | |
void | set_cull_callback () |
Intended to be called in the constructor by any subclass that defines cull_callback(), this sets up the flags to indicate that the cullback needs to be called. | |
void | set_internal_bounds (const BoundingVolume *volume) |
This is provided as an alternate way for a node to set its own internal bounds, rather than overloading compute_internal_bounds(). | |
virtual void | state_changed () |
Called after the node's RenderState has been changed for any reason, this just provides a hook so derived classes can do something special in this case. | |
virtual void | transform_changed () |
Called after the node's transform has been changed for any reason, this just provides a hook so derived classes can do something special in this case. | |
Static Protected Member Functions | |
static TypedWritable * | make_from_bam (const FactoryParams ¶ms) |
This function is called by the BamReader's factory when a new object of type PandaNode is encountered in the Bam file. | |
Protected Attributes | |
Thread *current_thread | const |
virtual Thread *current_thread | const |
Friends | |
class | EggLoader |
class | NodePath |
class | NodePathComponent |
class | PandaNode::Children |
class | PandaNode::Stashed |
class | PandaNodePipelineReader |
class | WorkingNodePath |
A basic node of the scene graph or data graph.
This is the base class of all specialized nodes, and also serves as a generic node with no special properties.
Definition at line 71 of file pandaNode.h.
PandaNode::PandaNode | ( | const PandaNode & | copy | ) | [protected] |
Do not call the copy constructor directly; instead, use make_copy() or copy_subgraph() to make a copy of a node.
Definition at line 144 of file pandaNode.cxx.
References UpdateSeq::initial().
void PandaNode::add_child | ( | PandaNode * | child_node, |
int | sort = 0 , |
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Thread * | current_thread = Thread::get_current_thread() |
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) |
Adds a new child to the node.
The child is added in the relative position indicated by sort; if all children have the same sort index, the child is added at the end.
If the same child is added to a node more than once, the previous instance is first removed.
Definition at line 733 of file pandaNode.cxx.
References children_changed(), force_bounds_stale(), TypedWritable::mark_bam_modified(), parents_changed(), and remove_child().
Referenced by copy_children(), EggLoader::make_polyset(), CharacterMaker::part_to_node(), SceneGraphReducer::r_flatten(), PGScrollFrame::setup(), PGSliderBar::setup_scroll_bar(), PGSliderBar::setup_slider(), LensNode::show_frustum(), steal_children(), and PathFind::trace_path().
void PandaNode::add_for_draw | ( | CullTraverser * | trav, |
CullTraverserData & | data | ||
) | [virtual] |
Adds the node's contents to the CullResult we are building up during the cull traversal, so that it will be drawn at render time.
For most nodes other than GeomNodes, this is a do-nothing operation.
Reimplemented in GeomNode, CallbackNode, and SpeedTreeNode.
Definition at line 603 of file pandaNode.cxx.
Referenced by CullTraverser::traverse_below().
void PandaNode::add_stashed | ( | PandaNode * | child_node, |
int | sort = 0 , |
||
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Adds a new child to the node, directly as a stashed child.
The child is not added in the normal sense, but will be revealed if unstash_child() is called on it later.
If the same child is added to a node more than once, the previous instance is first removed.
This can only be called from the top pipeline stage (i.e. from App).
Definition at line 998 of file pandaNode.cxx.
References children_changed(), Thread::get_pipeline_stage(), TypedWritable::mark_bam_modified(), parents_changed(), and remove_child().
Referenced by copy_children(), EggLoader::make_polyset(), and steal_children().
Adjusts the hide/show bits of this particular node.
These three parameters can be used to adjust the _draw_control_mask and _draw_show_mask independently, which work together to provide per-camera visibility for the node and its descendents.
_draw_control_mask indicates the bits in _draw_show_mask that are significant. Each different bit corresponds to a different camera (and these bits are assigned via Camera::set_camera_mask()).
Where _draw_control_mask has a 1 bit, a 1 bit in _draw_show_mask indicates the node is visible to that camera, and a 0 bit indicates the node is hidden to that camera. Where _draw_control_mask is 0, the node is hidden only if a parent node is hidden.
The meaning of the three parameters is as follows:
Wherever show_mask is 1, _draw_show_mask and _draw_control_mask will be set 1. Thus, show_mask indicates the set of cameras to which the node should be shown.
Wherever hide_mask is 1, _draw_show_mask will be set 0 and _draw_control_mask will be set 1. Thus, hide_mask indicates the set of cameras from which the node should be hidden.
Wherever clear_mask is 1, _draw_control_mask will be set 0. Thus, clear_mask indicates the set of cameras from which the hidden state should be inherited from a parent.
Definition at line 2091 of file pandaNode.cxx.
References draw_mask_changed(), Thread::get_current_thread(), BitMask< WType, nbits >::is_zero(), TypedWritable::mark_bam_modified(), and mark_bounds_stale().
Referenced by NodePath::hide(), set_overall_hidden(), NodePath::show(), and NodePath::show_through().
void PandaNode::apply_attribs_to_vertices | ( | const AccumulatedAttribs & | attribs, |
int | attrib_types, | ||
GeomTransformer & | transformer | ||
) | [virtual] |
Applies whatever attributes are specified in the AccumulatedAttribs object (and by the attrib_types bitmask) to the vertices on this node, if appropriate.
If this node uses geom arrays like a GeomNode, the supplied GeomTransformer may be used to unify shared arrays across multiple different nodes.
This is a generalization of xform().
Reimplemented in PartBundleNode, GeomNode, SpeedTreeNode, and TextNode.
Definition at line 364 of file pandaNode.cxx.
References Thread::get_current_thread(), TypedWritable::mark_bam_modified(), and xform().
Referenced by SceneGraphReducer::r_apply_attribs().
Light * PandaNode::as_light | ( | ) | [virtual] |
Cross-casts the node to a Light pointer, if it is one of the four kinds of Light nodes, or returns NULL if it is not.
Reimplemented in LightLensNode, and LightNode.
Definition at line 2687 of file pandaNode.cxx.
Referenced by NodePath::clear_light(), TinyGraphicsStateGuardian::do_issue_light(), GraphicsStateGuardian::do_issue_light(), LightAttrib::get_light(), LightAttrib::get_most_important_light(), NodePath::has_light(), NodePath::has_light_off(), NodePath::set_light(), and NodePath::set_light_off().
ReferenceCount * PandaNode::as_reference_count | ( | ) | [virtual] |
Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type.
Reimplemented from TypedWritable.
Definition at line 219 of file pandaNode.cxx.
void PandaNode::children_changed | ( | ) | [protected, virtual] |
Called after a scene graph update that either adds or remove children from this node, this just provides a hook for derived PandaNode objects that need to update themselves based on the set of children the node has.
Definition at line 2962 of file pandaNode.cxx.
Referenced by add_child(), add_stashed(), remove_all_children(), remove_child(), remove_stashed(), replace_child(), stash_child(), and unstash_child().
void PandaNode::clear_attrib | ( | TypeHandle | type | ) | [inline] |
Removes the render attribute of the given type from this node.
This node, and the subgraph below, will now inherit the indicated render attribute from the nodes above this one.
Definition at line 290 of file pandaNode.I.
References RenderAttribRegistry::get_slot(), and RenderAttribRegistry::quick_get_global_ptr().
Referenced by NodePath::clear_antialias(), NodePath::clear_attrib(), NodePath::clear_audio_volume(), NodePath::clear_bin(), NodePath::clear_clip_plane(), NodePath::clear_color(), NodePath::clear_color_scale(), NodePath::clear_depth_offset(), NodePath::clear_depth_test(), NodePath::clear_depth_write(), NodePath::clear_fog(), NodePath::clear_light(), NodePath::clear_material(), NodePath::clear_render_mode(), NodePath::clear_tex_gen(), NodePath::clear_tex_transform(), NodePath::clear_texture(), NodePath::clear_transparency(), and NodePath::clear_two_sided().
void PandaNode::clear_attrib | ( | int | slot | ) |
Removes the render attribute of the given type from this node.
This node, and the subgraph below, will now inherit the indicated render attribute from the nodes above this one.
Definition at line 1220 of file pandaNode.cxx.
References Thread::get_current_thread(), TypedWritable::mark_bam_modified(), mark_bounds_stale(), and state_changed().
void PandaNode::clear_bounds | ( | ) | [inline] |
Reverses the effect of a previous call to set_bounds(), and allows the node's bounding volume to be automatically computed once more based on the contents of the node.
Definition at line 596 of file pandaNode.I.
References set_bounds().
void PandaNode::clear_effect | ( | TypeHandle | type | ) |
Removes the render effect of the given type from this node.
Definition at line 1273 of file pandaNode.cxx.
References Thread::get_current_thread(), and TypedWritable::mark_bam_modified().
Referenced by NodePath::clear_billboard(), NodePath::clear_compass(), NodePath::clear_effect(), NodePath::clear_light(), CharacterJoint::clear_local_transforms(), CharacterJoint::clear_net_transforms(), NodePath::clear_occluder(), NodePath::clear_tex_projector(), NodePath::hide_bounds(), CharacterJoint::remove_local_transform(), CharacterJoint::remove_net_transform(), and NodePath::set_light_off().
void PandaNode::clear_effects | ( | Thread * | current_thread = Thread::get_current_thread() | ) | [inline] |
Resets this node to have no render effects.
Definition at line 372 of file pandaNode.I.
References set_effects().
Referenced by NodePath::clear_effects().
void PandaNode::clear_state | ( | Thread * | current_thread = Thread::get_current_thread() | ) | [inline] |
Resets this node to leave the render state alone.
Nodes at this level and below will once again inherit their render state unchanged from the nodes above this level.
Definition at line 350 of file pandaNode.I.
References set_state().
void PandaNode::clear_tag | ( | const string & | key, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Removes the value defined for this key on this particular node.
After a call to clear_tag(), has_tag() will return false for the indicated key.
Definition at line 1502 of file pandaNode.cxx.
References TypedWritable::mark_bam_modified().
Referenced by NodePath::clear_tag().
void PandaNode::clear_transform | ( | Thread * | current_thread = Thread::get_current_thread() | ) | [inline] |
Resets the transform on this node to the identity transform.
Definition at line 397 of file pandaNode.I.
References set_transform().
Referenced by NodePath::clear_mat().
void PandaNode::clear_unexpected_change | ( | unsigned int | flags | ) |
Sets one or more of the PandaNode::UnexpectedChange bits off, indicating that the corresponding property may once again change on this node.
The input parameter is the union of bits that are to be cleared.
Since this is a developer debugging tool only, this function does nothing in a production (NDEBUG) build.
Definition at line 2046 of file pandaNode.cxx.
Collapses this PandaNode with the other PandaNode, if possible, and returns a pointer to the combined PandaNode, or NULL if the two PandaNodes cannot safely be combined.
The return value may be this, other, or a new PandaNode altogether.
This function is called from GraphReducer::flatten(), and need not deal with children; its job is just to decide whether to collapse the two PandaNodes and what the collapsed PandaNode should look like.
Reimplemented in Character, CollisionNode, GeomNode, ModelNode, PortalNode, and SpeedTreeNode.
Definition at line 409 of file pandaNode.cxx.
References TypedObject::is_exact_type().
int PandaNode::compare_tags | ( | const PandaNode * | other | ) | const |
Returns a number less than 0, 0, or greater than 0, to indicate the similarity of tags between this node and the other one.
If this returns 0, the tags are identical. If it returns other than 0, then the tags are different; and the nodes may be sorted into a consistent (but arbitrary) ordering based on this number.
Definition at line 1736 of file pandaNode.cxx.
Referenced by SceneGraphReducer::consider_child().
void PandaNode::compute_internal_bounds | ( | CPT(BoundingVolume)& | internal_bounds, |
int & | internal_vertices, | ||
int | pipeline_stage, | ||
Thread * | current_thread | ||
) | const [protected, virtual] |
Returns a newly-allocated BoundingVolume that represents the internal contents of the node.
Should be overridden by PandaNode classes that contain something internally.
Reimplemented in CollisionNode, RopeNode, SheetNode, GeomNode, OccluderNode, PlaneNode, PortalNode, LODNode, PGItem, SpeedTreeNode, and TextNode.
Definition at line 2930 of file pandaNode.cxx.
Referenced by get_internal_vertices().
void PandaNode::copy_all_properties | ( | PandaNode * | other | ) |
Copies the TransformState, RenderState, RenderEffects, tags, Python tags, and the show/hide state from the other node onto this one.
Typically this is used to prepare a node to replace another node in the scene graph (also see replace_node()).
Definition at line 1814 of file pandaNode.cxx.
References draw_mask_changed(), Thread::get_current_thread(), TypedWritable::mark_bam_modified(), mark_bounds_stale(), state_changed(), and transform_changed().
Referenced by replace_node().
void PandaNode::copy_children | ( | PandaNode * | other, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Makes another instance of all the children of the other node, copying them to this node.
Definition at line 1155 of file pandaNode.cxx.
References add_child(), add_stashed(), PandaNode::Children::get_child(), PandaNode::Children::get_child_sort(), get_children(), PandaNode::Children::get_num_children(), PandaNode::Stashed::get_num_stashed(), PandaNode::Stashed::get_stashed(), get_stashed(), and PandaNode::Stashed::get_stashed_sort().
Referenced by SceneGraphReducer::r_apply_attribs().
void PandaNode::copy_tags | ( | PandaNode * | other | ) |
Copies all of the tags stored on the other node onto this node.
If a particular tag exists on both nodes, the contents of this node's value is replaced by that of the other.
Definition at line 1633 of file pandaNode.cxx.
References Thread::get_current_thread(), and TypedWritable::mark_bam_modified().
int PandaNode::count_num_descendants | ( | ) | const |
Returns the number of nodes at and below this level.
Definition at line 708 of file pandaNode.cxx.
References count_num_descendants(), PandaNode::Children::get_child(), get_children(), and PandaNode::Children::get_num_children().
Referenced by count_num_descendants().
bool PandaNode::cull_callback | ( | CullTraverser * | trav, |
CullTraverserData & | data | ||
) | [virtual] |
This function will be called during the cull traversal to perform any additional operations that should be performed at cull time.
This may include additional manipulation of render state or additional visible/invisible decisions, or any other arbitrary operation.
Note that this function will *not* be called unless set_cull_callback() is called in the constructor of the derived class. It is necessary to call set_cull_callback() to indicated that we require cull_callback() to be called.
By the time this function is called, the node has already passed the bounding-volume test for the viewing frustum, and the node's transform and state have already been applied to the indicated CullTraverserData object.
The return value is true if this node should be visible, or false if it should be culled.
Reimplemented in Character, CollisionNode, ProjectionScreen, FrameRateMeter, RigidBodyCombiner, SceneGraphAnalyzerMeter, RopeNode, SheetNode, OccluderNode, PlaneNode, PortalNode, CallbackNode, FadeLODNode, LODNode, SequenceNode, SwitchNode, UvScrollNode, PGEntry, PGItem, PGScrollFrame, PGSliderBar, PGTop, PGWaitBar, SpeedTreeNode, and TextNode.
Definition at line 489 of file pandaNode.cxx.
Referenced by CullTraverser::traverse().
void PandaNode::disable_cull_callback | ( | ) | [protected] |
disables the call back
Definition at line 3129 of file pandaNode.cxx.
References Thread::get_current_thread(), and TypedWritable::mark_bam_modified().
void PandaNode::draw_mask_changed | ( | ) | [protected, virtual] |
Called after the node's DrawMask has been changed for any reason, this just provides a hook so derived classes can do something special in this case.
Reimplemented in BulletDebugNode, and PGItem.
Definition at line 2998 of file pandaNode.cxx.
Referenced by adjust_draw_mask(), and copy_all_properties().
PandaNode * PandaNode::dupe_for_flatten | ( | ) | const [virtual] |
This is similar to make_copy(), but it makes a copy for the specific purpose of flatten.
Typically, this will be a new PandaNode with a new pointer, but all of the internal data will always be shared with the original; whereas the new node returned by make_copy() might not share the internal data.
Reimplemented in Character.
Definition at line 234 of file pandaNode.cxx.
References make_copy().
Referenced by SceneGraphReducer::r_apply_attribs().
void PandaNode::fillin | ( | DatagramIterator & | scan, |
BamReader * | manager | ||
) | [protected, virtual] |
This internal function is called by make_from_bam to read in all of the relevant data from the BamFile for the new PandaNode.
Reimplemented from TypedWritable.
Reimplemented in AnimBundleNode, PartBundleNode, Character, CollisionNode, DataNode, CubicCurveseg, HermiteCurve, NurbsCurve, ParametricCurve, PiecewiseCurve, RopeNode, SheetNode, Camera, Fog, GeomNode, LensNode, ModelNode, ModelRoot, OccluderNode, PlaneNode, PolylightNode, PortalNode, AmbientLight, CallbackNode, DirectionalLight, FadeLODNode, LightLensNode, LightNode, LODNode, PointLight, SequenceNode, Spotlight, SwitchNode, UvScrollNode, MouseRecorder, and SpeedTreeNode.
Definition at line 4362 of file pandaNode.cxx.
References DatagramIterator::get_string(), and BamReader::read_cdata().
Referenced by make_from_bam().
void PandaNode::fillin_recorder | ( | DatagramIterator & | scan, |
BamReader * | manager | ||
) | [protected] |
This internal function is called by make_recorder (in classes derived from RecorderBase, such as MouseRecorder) to read in all of the relevant data from the session file.
It balances with write_recorder().
Reimplemented in MouseRecorder.
Definition at line 4381 of file pandaNode.cxx.
References DatagramIterator::get_string().
int PandaNode::find_child | ( | PandaNode * | node, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | const [inline] |
Returns the index of the indicated child node, if it is a child, or -1 if it is not.
Definition at line 111 of file pandaNode.I.
Referenced by PandaFramework::event_arrow_left(), PandaFramework::event_arrow_right(), NodePath::get_sort(), and stash_child().
int PandaNode::find_parent | ( | PandaNode * | node, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | const [inline] |
Returns the index of the indicated parent node, if it is a parent, or -1 if it is not.
Definition at line 54 of file pandaNode.I.
Referenced by NodePathComponent::output(), replace_node(), DataGraphTraverser::traverse_below(), and NodePath::verify_complete().
int PandaNode::find_stashed | ( | PandaNode * | node, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | const [inline] |
Returns the index of the indicated stashed node, if it is a stashed child, or -1 if it is not.
Definition at line 220 of file pandaNode.I.
Referenced by NodePath::get_sort(), NodePath::get_stashed_ancestor(), is_under_scene_root(), NodePathComponent::output(), and unstash_child().
void PandaNode::force_bounds_stale | ( | Thread * | current_thread = Thread::get_current_thread() | ) | [protected] |
Similar to mark_bounds_stale(), except that the parents of this node marked stale even if this node was already considered stale.
With no parameters, this means to iterate through all stages including and upstream of the current pipeline stage.
Definition at line 2857 of file pandaNode.cxx.
Referenced by add_child(), remove_all_children(), remove_child(), remove_stashed(), stash_child(), and unstash_child().
void PandaNode::force_bounds_stale | ( | int | pipeline_stage, |
Thread * | current_thread | ||
) | [protected] |
Similar to mark_bounds_stale(), except that the parents of this node marked stale even if this node was already considered stale.
Definition at line 2872 of file pandaNode.cxx.
References PandaNode::Parents::get_num_parents(), PandaNode::Parents::get_parent(), TypedWritable::mark_bam_modified(), and mark_bounds_stale().
DrawMask PandaNode::get_all_camera_mask | ( | ) | [inline, static] |
Returns a DrawMask that is appropriate for rendering to all cameras.
Definition at line 513 of file pandaNode.I.
const RenderAttrib * PandaNode::get_attrib | ( | TypeHandle | type | ) | const [inline] |
Returns the render attribute of the indicated type, if it is defined on the node, or NULL if it is not.
This checks only what is set on this particular node level, and has nothing to do with what render attributes may be inherited from parent nodes.
Definition at line 235 of file pandaNode.I.
Referenced by AccumulatedAttribs::apply_to_node(), NodePath::clear_clip_plane(), NodePath::clear_light(), NodePath::clear_tex_gen(), NodePath::clear_tex_transform(), NodePath::clear_texture(), NodePath::compose_color_scale(), NodePath::get_antialias(), NodePath::get_attrib(), NodePath::get_audio_volume(), NodePath::get_bin_draw_order(), NodePath::get_bin_name(), NodePath::get_color(), NodePath::get_color_scale(), PolylightNode::get_color_scenegraph(), NodePath::get_depth_offset(), NodePath::get_depth_test(), NodePath::get_depth_write(), NodePath::get_fog(), NodePath::get_instance_count(), NodePath::get_render_mode(), NodePath::get_render_mode_perspective(), NodePath::get_render_mode_thickness(), NodePath::get_tex_gen(), NodePath::get_tex_gen_light(), NodePath::get_texture(), NodePath::get_transparency(), NodePath::get_two_sided(), NodePath::has_clip_plane(), NodePath::has_clip_plane_off(), NodePath::has_fog(), NodePath::has_fog_off(), NodePath::has_light(), NodePath::has_light_off(), NodePath::has_material(), NodePath::has_tex_gen(), NodePath::has_tex_transform(), NodePath::has_texture(), NodePath::has_texture_off(), NodePath::set_all_color_scale(), NodePath::set_alpha_scale(), NodePath::set_audio_volume(), NodePath::set_clip_plane(), NodePath::set_clip_plane_off(), NodePath::set_color_scale(), NodePath::set_instance_count(), NodePath::set_light(), NodePath::set_light_off(), NodePath::set_shader_auto(), NodePath::set_tex_gen(), NodePath::set_tex_transform(), NodePath::set_texture(), and NodePath::set_texture_off().
const RenderAttrib * PandaNode::get_attrib | ( | int | slot | ) | const [inline] |
Returns the render attribute of the indicated type, if it is defined on the node, or NULL if it is not.
This checks only what is set on this particular node level, and has nothing to do with what render attributes may be inherited from parent nodes.
Definition at line 250 of file pandaNode.I.
BoundingVolume::BoundsType PandaNode::get_bounds_type | ( | ) | const |
Returns the bounding volume type set with set_bounds_type().
Definition at line 2443 of file pandaNode.cxx.
Referenced by PGItem::compute_internal_bounds(), GeomNode::compute_internal_bounds(), and CollisionNode::compute_internal_bounds().
PandaNode * PandaNode::get_child | ( | int | n, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | const [inline] |
Returns the nth child node of this node.
See get_num_children(). Also see get_children(), if your intention is to iterate through the complete list of children; get_children() is preferable in this case.
Definition at line 82 of file pandaNode.I.
Referenced by LODNode::cull_callback(), FadeLODNode::cull_callback(), PandaFramework::event_arrow_left(), PandaFramework::event_arrow_right(), CharacterMaker::part_to_node(), ParametricCurveCollection::r_add_curves(), SceneGraphReducer::r_apply_attribs(), r_copy_children(), SceneGraphReducer::r_flatten(), LODNode::show_switches_cull_callback(), stash_child(), and steal_children().
int PandaNode::get_child_sort | ( | int | n, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | const [inline] |
Returns the sort index of the nth child node of this node (that is, the number that was passed to add_child()).
See get_num_children().
Definition at line 97 of file pandaNode.I.
Referenced by NodePath::get_sort(), SceneGraphReducer::r_flatten(), stash_child(), and steal_children().
PandaNode::Children PandaNode::get_children | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns an object that can be used to walk through the list of children of the node.
When you intend to visit multiple children, using this is slightly faster than calling get_child() directly on the PandaNode, since this object avoids reopening the PipelineCycler each time.
This object also protects you from self-modifying loops (e.g. adding or removing children during traversal), since a virtual copy of the children is made ahead of time. The virtual copy is fast--it is a form of copy-on-write, so the list is not actually copied unless it is modified during the traversal.
Definition at line 772 of file pandaNode.I.
Referenced by RigidBodyCombiner::collect(), FindApproxLevelEntry::consider_node(), copy_children(), count_num_descendants(), AnimBundleNode::find_anim_bundle(), SceneGraphReducer::flatten(), SceneGraphReducer::flatten_siblings(), NodePath::get_children(), SceneGraphReducer::r_collect_vertex_data(), SceneGraphReducer::r_decompose(), SceneGraphReducer::r_flatten(), SceneGraphReducer::r_make_compatible_state(), SceneGraphReducer::r_make_nonindexed(), r_mark_geom_bounds_stale(), SceneGraphReducer::r_premunge(), r_prepare_scene(), SceneGraphReducer::r_register_vertices(), SceneGraphReducer::r_remove_column(), SceneGraphReducer::r_unify(), MultitexReducer::scan(), and DataGraphTraverser::traverse_below().
DrawMask PandaNode::get_draw_control_mask | ( | ) | const [inline] |
Returns the set of bits in draw_show_mask that are considered meaningful.
See adjust_draw_mask().
Definition at line 559 of file pandaNode.I.
Referenced by SceneGraphReducer::consider_child(), and NodePath::get_hidden_ancestor().
DrawMask PandaNode::get_draw_show_mask | ( | ) | const [inline] |
Returns the hide/show bits of this particular node.
See adjust_draw_mask().
Definition at line 571 of file pandaNode.I.
Referenced by SceneGraphReducer::consider_child(), and NodePath::get_hidden_ancestor().
const RenderEffect * PandaNode::get_effect | ( | TypeHandle | type | ) | const [inline] |
Returns the render effect of the indicated type, if it is defined on the node, or NULL if it is not.
Definition at line 303 of file pandaNode.I.
Referenced by NodePath::clear_light(), CharacterJoint::clear_local_transforms(), CharacterJoint::clear_net_transforms(), NodePath::clear_occluder(), NodePath::clear_tex_projector(), NodePath::get_effect(), NodePath::get_tex_projector_from(), NodePath::get_tex_projector_to(), NodePath::has_light(), NodePath::has_occluder(), NodePath::has_tex_projector(), CharacterJoint::remove_local_transform(), CharacterJoint::remove_net_transform(), NodePath::set_light(), NodePath::set_occluder(), and NodePath::set_tex_projector().
const RenderEffects * PandaNode::get_effects | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns the complete RenderEffects that will be applied to this node.
Definition at line 361 of file pandaNode.I.
Referenced by SceneGraphReducer::consider_child(), NodePath::get_effects(), SceneGraphReducer::r_apply_attribs(), and SceneGraphReducer::r_flatten().
int PandaNode::get_fancy_bits | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns the union of all of the enum FancyBits values corresponding to the various "fancy" attributes that are set on the node.
If this returns 0, the node has nothing interesting about it. This is intended to speed traversal by quickly skipping past nodes that don't particularly affect the render state.
Definition at line 694 of file pandaNode.I.
int PandaNode::get_first_visible_child | ( | ) | const [virtual] |
Returns the index number of the first visible child of this node, or a number >= get_num_children() if there are no visible children of this node.
This is called during the cull traversal, but only if has_selective_visibility() has already returned true. See has_selective_visibility().
Reimplemented in SelectiveChildNode, SequenceNode, and SwitchNode.
Definition at line 527 of file pandaNode.cxx.
Referenced by CullTraverser::traverse_below().
int PandaNode::get_internal_vertices | ( | int | pipeline_stage, |
Thread * | current_thread | ||
) | const [protected] |
Returns the total number of vertices that will be rendered by this particular node alone, not accounting for its children.
This may not include all vertices for certain dynamic effects.
Definition at line 2787 of file pandaNode.cxx.
References compute_internal_bounds().
int PandaNode::get_internal_vertices | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns the total number of vertices that will be rendered by this particular node alone, not accounting for its children.
This may not include all vertices for certain dynamic effects.
Definition at line 626 of file pandaNode.I.
References Thread::get_pipeline_stage().
CollideMask PandaNode::get_into_collide_mask | ( | ) | const [inline] |
Returns the "into" collide mask for this node.
Reimplemented in CollisionNode.
Definition at line 582 of file pandaNode.I.
CollideMask PandaNode::get_legal_collide_mask | ( | ) | const [virtual] |
Returns the subset of CollideMask bits that may be set for this particular type of PandaNode.
For most nodes, this is 0; it doesn't make sense to set a CollideMask for most kinds of nodes.
For nodes that can be collided with, such as GeomNode and CollisionNode, this returns all bits on.
Reimplemented in BulletBaseCharacterControllerNode, BulletBodyNode, CollisionNode, and GeomNode.
Definition at line 2228 of file pandaNode.cxx.
References BitMask< WType, nbits >::all_off().
Referenced by set_into_collide_mask().
int PandaNode::get_nested_vertices | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const |
Returns the total number of vertices that will be rendered by this node and all of its descendents.
This is not necessarily an accurate count of vertices that will actually be rendered, since this will include all vertices of all LOD's, and it will also include hidden nodes. It may also omit or only approximate certain kinds of dynamic geometry. However, it will not include stashed nodes.
Definition at line 2566 of file pandaNode.cxx.
References Thread::get_pipeline_stage().
Referenced by PGItem::compute_internal_bounds().
CollideMask PandaNode::get_net_collide_mask | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const |
Returns the union of all into_collide_mask() values set at CollisionNodes at this level and below.
Definition at line 2239 of file pandaNode.cxx.
References Thread::get_pipeline_stage().
Referenced by NodePath::get_collide_mask().
DrawMask PandaNode::get_net_draw_control_mask | ( | ) | const |
Returns the set of bits in get_net_draw_show_mask() that have been explicitly set via adjust_draw_mask(), rather than implicitly inherited.
A 1 bit in any position of this mask indicates that (a) this node has renderable children, and (b) some child of this node has made an explicit hide() or show_through() call for the corresponding bit.
Definition at line 2133 of file pandaNode.cxx.
References Thread::get_current_thread(), and Thread::get_pipeline_stage().
DrawMask PandaNode::get_net_draw_show_mask | ( | ) | const |
Returns the union of all draw_show_mask values--of renderable nodes only--at this level and below.
If any bit in this mask is 0, there is no reason to traverse below this node for a camera with the corresponding camera_mask.
The bits in this mask that do not correspond to a 1 bit in the net_draw_control_mask are meaningless (and will be set to 1). For bits that *do* correspond to a 1 bit in the net_draw_control_mask, a 1 bit indicates that at least one child should be visible, while a 0 bit indicates that all children are hidden.
Definition at line 2164 of file pandaNode.cxx.
References Thread::get_current_thread(), and Thread::get_pipeline_stage().
int PandaNode::get_next_visible_child | ( | int | n | ) | const [virtual] |
Returns the index number of the next visible child of this node following the indicated child, or a number >= get_num_children() if there are no more visible children of this node.
See has_selective_visibility() and get_first_visible_child().
Reimplemented in SelectiveChildNode.
Definition at line 542 of file pandaNode.cxx.
Referenced by CullTraverser::traverse_below().
int PandaNode::get_num_children | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns the number of child nodes this node has.
The order of the child nodes *is* meaningful and is based on the sort number that was passed to add_child(), and also on the order in which the nodes were added.
Definition at line 68 of file pandaNode.I.
Referenced by LODNode::cull_callback(), FadeLODNode::cull_callback(), PandaFramework::event_arrow_right(), SceneGraphReducer::flatten(), SelectiveChildNode::get_next_visible_child(), SequenceNode::get_num_frames(), CharacterMaker::part_to_node(), ParametricCurveCollection::r_add_curves(), SceneGraphReducer::r_apply_attribs(), SceneGraphReducer::r_flatten(), LODNode::show_switches_cull_callback(), stash_child(), and steal_children().
int PandaNode::get_num_parents | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns the number of parent nodes this node has.
If this number is greater than 1, the node has been multiply instanced. The order of the parent nodes is not meaningful and is not related to the order in which the node was instanced to them.
Definition at line 26 of file pandaNode.I.
Referenced by Fog::adjust_to_camera(), SceneGraphReducer::r_apply_attribs(), DataGraphTraverser::traverse(), DataGraphTraverser::traverse_below(), and DataNode::write_connections().
int PandaNode::get_num_stashed | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns the number of stashed nodes this node has.
These are former children of the node that have been moved to the special stashed list via stash_child().
Definition at line 176 of file pandaNode.I.
Referenced by FindApproxLevelEntry::consider_node(), NodePath::get_stashed_children(), steal_children(), and unstash_child().
DrawMask PandaNode::get_overall_bit | ( | ) | [inline, static] |
Returns the special bit that, when specifically cleared in the node's DrawMask, indicates that the node is hidden to all cameras, regardless of the remaining DrawMask bits.
Definition at line 502 of file pandaNode.I.
Referenced by NodePath::hide(), CullTraverserData::is_this_node_hidden(), Camera::set_camera_mask(), NodePath::show(), and NodePath::show_through().
PandaNode * PandaNode::get_parent | ( | int | n, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | const [inline] |
Returns the nth parent node of this node.
See get_num_parents(). Also see get_parents(), if your intention is to iterate through the complete list of parents; get_parents() is preferable in this case.
Definition at line 40 of file pandaNode.I.
Referenced by DataNode::write_connections().
PandaNode::Parents PandaNode::get_parents | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns an object that can be used to walk through the list of parents of the node, similar to get_children() and get_stashed().
Definition at line 808 of file pandaNode.I.
Referenced by is_under_scene_root(), BulletGhostNode::parents_changed(), and replace_node().
const TransformState * PandaNode::get_prev_transform | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns the transform that has been set as this node's "previous" position.
See set_prev_transform().
Definition at line 409 of file pandaNode.I.
Referenced by NodePath::get_prev_transform().
PandaNode::Stashed PandaNode::get_stashed | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns an object that can be used to walk through the list of children of the node.
When you intend to visit multiple children, using this is slightly faster than calling get_stashed() directly on the PandaNode, since this object avoids reopening the PipelineCycler each time.
This object also protects you from self-modifying loops (e.g. adding or removing children during traversal), since a virtual copy of the children is made ahead of time. The virtual copy is fast--it is a form of copy-on-write, so the list is not actually copied unless it is modified during the traversal.
Definition at line 795 of file pandaNode.I.
PandaNode * PandaNode::get_stashed | ( | int | n, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | const [inline] |
Returns the nth stashed child of this node.
See get_num_stashed(). Also see get_stashed(), if your intention is to iterate through the complete list of stashed children; get_stashed() is preferable in this case.
Definition at line 191 of file pandaNode.I.
Referenced by FindApproxLevelEntry::consider_node(), copy_children(), PandaNodePipelineReader::find_stashed(), NodePath::get_stashed_children(), r_mark_geom_bounds_stale(), SceneGraphReducer::r_premunge(), r_prepare_scene(), steal_children(), and unstash_child().
int PandaNode::get_stashed_sort | ( | int | n, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | const [inline] |
Returns the sort index of the nth stashed node of this node (that is, the number that was passed to add_child()).
See get_num_stashed().
Definition at line 206 of file pandaNode.I.
Referenced by NodePath::get_sort(), steal_children(), and unstash_child().
const RenderState * PandaNode::get_state | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns the complete RenderState that will be applied to all nodes at this level and below, as set on this node.
This returns only the RenderState set on this particular node, and has nothing to do with state that might be inherited from above.
Definition at line 336 of file pandaNode.I.
Referenced by AccumulatedAttribs::apply_to_node(), NodePath::clear_clip_plane(), NodePath::clear_light(), NodePath::clear_texture(), AccumulatedAttribs::collect(), SceneGraphReducer::consider_child(), NodePath::get_state(), SceneGraphReducer::r_apply_attribs(), SceneGraphReducer::r_premunge(), TextNode::r_prepare_scene(), PGItem::r_prepare_scene(), r_prepare_scene(), MultitexReducer::scan(), NodePath::set_texture(), and NodePath::set_texture_off().
string PandaNode::get_tag | ( | const string & | key, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | const [inline] |
Retrieves the user-defined value that was previously set on this node for the particular key, if any.
If no value has been previously set, returns the empty string.
Definition at line 437 of file pandaNode.I.
Referenced by NodePath::get_tag().
const TransformState * PandaNode::get_transform | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns the transform that has been set on this particular node.
This is not the net transform from the root, but simply the transform on this particular node.
Definition at line 385 of file pandaNode.I.
Referenced by CharacterJointEffect::adjust_transform(), AccumulatedAttribs::apply_to_node(), AccumulatedAttribs::collect(), SceneGraphReducer::consider_child(), GraphicsStateGuardian::fetch_specified_part(), NodePath::get_mat(), NodePath::get_transform(), NodePath::has_mat(), SceneGraphReducer::r_apply_attribs(), SceneGraphReducer::r_collect_vertex_data(), SceneGraphReducer::r_flatten(), MultitexReducer::scan(), AnimChannelScalarDynamic::set_value_node(), AnimChannelMatrixDynamic::set_value_node(), and ModelNode::transform_changed().
unsigned int PandaNode::get_unexpected_change | ( | unsigned int | flags | ) | const |
Returns nonzero if any of the bits in the input parameter are set on this node, or zero if none of them are set.
More specifically, this returns the particular set of bits (masked by the input parameter) that have been set on this node. See set_unexpected_change().
Since this is a developer debugging tool only, this function always returns zero in a production (NDEBUG) build.
Definition at line 2023 of file pandaNode.cxx.
int PandaNode::get_unsafe_to_apply_attribs | ( | ) | const [virtual] |
Returns the union of all attributes from SceneGraphReducer::AttribTypes that may not safely be applied to the vertices of this node.
If this is nonzero, these attributes must be dropped at this node as a state change.
This is a generalization of safe_to_transform().
Reimplemented in ModelNode, and TextNode.
Definition at line 347 of file pandaNode.cxx.
Referenced by SceneGraphReducer::r_apply_attribs().
int PandaNode::get_visible_child | ( | ) | const [virtual] |
Returns the index number of the currently visible child of this node.
This is only meaningful if has_single_child_visibility() has returned true.
Reimplemented in SequenceNode, and SwitchNode.
Definition at line 575 of file pandaNode.cxx.
bool PandaNode::has_attrib | ( | TypeHandle | type | ) | const [inline] |
Returns true if there is a render attribute of the indicated type defined on this node, or false if there is not.
Definition at line 263 of file pandaNode.I.
Referenced by NodePath::has_antialias(), NodePath::has_attrib(), NodePath::has_audio_volume(), NodePath::has_bin(), NodePath::has_color(), NodePath::has_color_scale(), NodePath::has_depth_offset(), NodePath::has_depth_test(), NodePath::has_depth_write(), NodePath::has_render_mode(), NodePath::has_transparency(), and NodePath::has_two_sided().
bool PandaNode::has_attrib | ( | int | slot | ) | const [inline] |
Returns true if there is a render attribute of the indicated type defined on this node, or false if there is not.
Definition at line 276 of file pandaNode.I.
bool PandaNode::has_dirty_prev_transform | ( | ) | const [inline] |
Returns true if this node has the _dirty_prev_transform flag set, which indicates its _prev_transform is different from its _transform value (in pipeline stage 0).
In this case, the node will be visited by reset_prev_transform().
Definition at line 424 of file pandaNode.I.
bool PandaNode::has_effect | ( | TypeHandle | type | ) | const [inline] |
Returns true if there is a render effect of the indicated type defined on this node, or false if there is not.
Definition at line 320 of file pandaNode.I.
Referenced by NodePath::has_billboard(), NodePath::has_compass(), and NodePath::has_effect().
bool PandaNode::has_selective_visibility | ( | ) | const [virtual] |
Should be overridden by derived classes to return true if this kind of node has some restrictions on the set of children that should be rendered.
Node with this property include LODNodes, SwitchNodes, and SequenceNodes.
If this function returns true, get_first_visible_child() and get_next_visible_child() will be called to walk through the list of children during cull, instead of iterating through the entire list. This method is called after cull_callback(), so cull_callback() may be responsible for the decisions as to which children are visible at the moment.
Reimplemented in SelectiveChildNode.
Definition at line 512 of file pandaNode.cxx.
Referenced by CullTraverser::traverse_below().
bool PandaNode::has_single_child_visibility | ( | ) | const [virtual] |
Should be overridden by derived classes to return true if this kind of node has the special property that just one of its children is visible at any given time, and furthermore that the particular visible child can be determined without reference to any external information (such as a camera).
At present, only SequenceNodes and SwitchNodes fall into this category.
If this function returns true, get_visible_child() can be called to return the index of the currently-visible child.
Reimplemented in SequenceNode, and SwitchNode.
Definition at line 563 of file pandaNode.cxx.
bool PandaNode::has_tag | ( | const string & | key, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | const [inline] |
Returns true if a value has been defined on this node for the particular key (even if that value is the empty string), or false if no value has been set.
Definition at line 455 of file pandaNode.I.
Referenced by NodePath::has_tag().
bool PandaNode::has_tags | ( | ) | const [inline] |
Returns true if the node has any tags (or any Python tags) at all, false if it has none.
Definition at line 469 of file pandaNode.I.
bool PandaNode::is_ambient_light | ( | ) | const [virtual] |
Returns true if this is an AmbientLight, false if it is not a light, or it is some other kind of light.
Reimplemented in AmbientLight.
Definition at line 2698 of file pandaNode.cxx.
Referenced by LightAttrib::get_most_important_light().
bool PandaNode::is_bounds_stale | ( | ) | const [inline] |
Returns true if the bounding volume of this node is stale and will be implicitly recomputed at the next call to get_bounds(), or false if it is fresh and need not be recomputed.
Definition at line 640 of file pandaNode.I.
bool PandaNode::is_collision_node | ( | ) | const [virtual] |
A simple downcast check.
Returns true if this kind of node happens to inherit from CollisionNode, false otherwise.
This is provided as a a faster alternative to calling is_of_type(CollisionNode::get_class_type()).
Reimplemented in CollisionNode.
Definition at line 2675 of file pandaNode.cxx.
Referenced by CollisionTraverser::add_collider(), and CollisionHandlerPhysical::add_collider().
bool PandaNode::is_final | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns the current state of the "final" flag.
Initially, this flag is off (false), but it may be changed by an explicit call to set_final(). See set_final().
Definition at line 678 of file pandaNode.I.
bool PandaNode::is_geom_node | ( | ) | const [virtual] |
A simple downcast check.
Returns true if this kind of node happens to inherit from GeomNode, false otherwise.
This is provided as a a faster alternative to calling is_of_type(GeomNode::get_class_type()), since this test is so important to rendering.
Reimplemented in GeomNode.
Definition at line 2645 of file pandaNode.cxx.
Referenced by SceneGraphReducer::flatten_siblings(), PipeOcclusionCullTraverser::is_in_view(), EggLoader::make_polyset(), CharacterMaker::part_to_node(), SceneGraphReducer::r_collect_vertex_data(), SceneGraphReducer::r_decompose(), SceneGraphReducer::r_make_compatible_state(), SceneGraphReducer::r_make_nonindexed(), SceneGraphReducer::r_premunge(), SceneGraphReducer::r_register_vertices(), SceneGraphReducer::r_remove_column(), SceneGraphReducer::r_unify(), MultitexReducer::scan(), and CullTraverser::traverse_below().
bool PandaNode::is_lod_node | ( | ) | const [virtual] |
A simple downcast check.
Returns true if this kind of node happens to inherit from LODNode, false otherwise.
This is provided as a a faster alternative to calling is_of_type(LODNode::get_class_type()).
Reimplemented in LODNode.
Definition at line 2660 of file pandaNode.cxx.
bool PandaNode::is_overall_hidden | ( | ) | const [inline] |
Returns true if the node has been hidden to all cameras by clearing its overall bit.
Definition at line 524 of file pandaNode.I.
Referenced by FindApproxLevelEntry::consider_next_step(), NodePath::get_hidden_ancestor(), and PGItem::reduce_region().
bool PandaNode::is_renderable | ( | ) | const [virtual] |
Returns true if there is some value to visiting this particular node during the cull traversal for any camera, false otherwise.
This will be used to optimize the result of get_net_draw_show_mask(), so that any subtrees that contain only nodes for which is_renderable() is false need not be visited.
Reimplemented in CollisionNode, RopeNode, SheetNode, GeomNode, OccluderNode, PlaneNode, PortalNode, CallbackNode, PGItem, PGTop, SpeedTreeNode, and TextNode.
Definition at line 590 of file pandaNode.cxx.
bool PandaNode::is_scene_root | ( | ) | const |
Returns true if this particular node is known to be the render root of some active DisplayRegion associated with the global GraphicsEngine, false otherwise.
Definition at line 2304 of file pandaNode.cxx.
Referenced by is_under_scene_root().
bool PandaNode::is_under_scene_root | ( | ) | const |
Returns true if this particular node is in a live scene graph: that is, it is a child or descendent of a node that is itself a scene root.
If this is true, this node may potentially be traversed by the render traverser. Stashed nodes don't count for this purpose, but hidden nodes do.
Definition at line 2325 of file pandaNode.cxx.
References find_stashed(), PandaNode::Parents::get_num_parents(), PandaNode::Parents::get_parent(), get_parents(), is_scene_root(), and is_under_scene_root().
Referenced by SceneGraphReducer::check_live_flatten(), and is_under_scene_root().
void PandaNode::list_tags | ( | ostream & | out, |
const string & | separator = "\n" |
||
) | const |
Writes a list of all the tag keys assigned to the node to the indicated stream.
Writes one instance of the separator following each key (but does not write a terminal separator). The value associated with each key is not written.
This is mainly for the benefit of the realtime user, to see the list of all of the associated tag keys.
Definition at line 1696 of file pandaNode.cxx.
Referenced by NodePath::list_tags().
void PandaNode::ls | ( | ostream & | out, |
int | indent_level | ||
) | const [inline] |
Lists all the nodes at and below the current path hierarchically.
Definition at line 489 of file pandaNode.I.
Referenced by NodePath::ls(), and PGEntry::setup_minimal().
PandaNode * PandaNode::make_copy | ( | ) | const [virtual] |
Returns a newly-allocated PandaNode that is a shallow copy of this one.
It will be a different pointer, but its internal data may or may not be shared with that of the original PandaNode. No children will be copied.
Reimplemented in AnimBundleNode, Character, CollisionNode, DataNode, ProjectionScreen, RigidBodyCombiner, NurbsCurve, RopeNode, SheetNode, Camera, Fog, GeomNode, LensNode, ModelNode, ModelRoot, OccluderNode, PlaneNode, PolylightNode, PortalNode, AmbientLight, CallbackNode, DirectionalLight, FadeLODNode, LODNode, PointLight, SequenceNode, Spotlight, SwitchNode, UvScrollNode, PGButton, PGEntry, PGItem, PGScrollFrame, PGSliderBar, PGTop, PGVirtualFrame, PGWaitBar, ForceNode, PhysicalNode, SpeedTreeNode, and TextNode.
Definition at line 616 of file pandaNode.cxx.
Referenced by dupe_for_flatten().
TypedWritable * PandaNode::make_from_bam | ( | const FactoryParams & | params | ) | [static, protected] |
This function is called by the BamReader's factory when a new object of type PandaNode is encountered in the Bam file.
It should create the PandaNode and extract its information from the file.
Reimplemented in AnimBundleNode, Character, CollisionNode, RopeNode, SheetNode, Camera, Fog, GeomNode, LensNode, ModelNode, ModelRoot, OccluderNode, PlaneNode, PolylightNode, PortalNode, AmbientLight, CallbackNode, DirectionalLight, FadeLODNode, LODNode, PointLight, SequenceNode, Spotlight, SwitchNode, UvScrollNode, MouseRecorder, and SpeedTreeNode.
Definition at line 4343 of file pandaNode.cxx.
References fillin().
Referenced by register_with_read_factory(), and RopeNode::register_with_read_factory().
void PandaNode::mark_bounds_stale | ( | int | pipeline_stage, |
Thread * | current_thread | ||
) | const [inline, protected] |
Indicates that the bounding volume, or something that influences the bounding volume (or any of the other things stored in CData, like net_collide_mask), may have changed for this node, and that it must be recomputed.
Definition at line 723 of file pandaNode.I.
void PandaNode::mark_bounds_stale | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const |
Indicates that the bounding volume, or something that influences the bounding volume (or any of the other things stored in CData, like net_collide_mask), may have changed for this node, and that it must be recomputed.
With no parameters, this means to iterate through all stages including and upstream of the current pipeline stage.
This method is intended for internal use; usually it is not necessary for a user to call this directly. It will be called automatically by derived classes when appropriate.
Definition at line 2602 of file pandaNode.cxx.
Referenced by adjust_draw_mask(), clear_attrib(), copy_all_properties(), force_bounds_stale(), mark_internal_bounds_stale(), set_attrib(), set_bounds(), set_bounds_type(), set_internal_bounds(), set_into_collide_mask(), PortalNode::set_into_portal_mask(), set_state(), and set_transform().
void PandaNode::mark_internal_bounds_stale | ( | int | pipeline_stage, |
Thread * | current_thread | ||
) | [inline, protected] |
Should be called by a derived class to mark the internal bounding volume stale, so that recompute_internal_bounds() will be called when the bounding volume is next requested.
Definition at line 746 of file pandaNode.I.
References mark_bounds_stale().
void PandaNode::mark_internal_bounds_stale | ( | Thread * | current_thread = Thread::get_current_thread() | ) |
Should be called by a derived class to mark the internal bounding volume stale, so that compute_internal_bounds() will be called when the bounding volume is next requested.
With no parameters, this means to iterate through all stages including and upstream of the current pipeline stage.
It is normally not necessary to call this method directly; each node should be responsible for calling it when its internals have changed.
Definition at line 2626 of file pandaNode.cxx.
Referenced by GeomNode::add_geom(), GeomNode::add_geoms_from(), CollisionNode::add_solid(), LODNode::add_switch(), SpeedTreeNode::add_tree(), SpeedTreeNode::apply_attribs_to_vertices(), CollisionNode::clear_solids(), PGItem::clear_state_def(), LODNode::clear_switches(), CollisionNode::combine_with(), LODNode::hide_all_switches(), LODNode::hide_switch(), PGItem::instance_to_state_def(), GeomNode::r_mark_geom_bounds_stale(), GeomNode::remove_all_geoms(), SpeedTreeNode::remove_all_trees(), GeomNode::remove_geom(), CollisionNode::remove_solid(), SpeedTreeNode::remove_tree(), SheetNode::reset_bound(), RopeNode::reset_bound(), set_bounds_type(), LODNode::set_center(), PGItem::set_frame_style(), GeomNode::set_geom(), CollisionNode::set_solid(), LODNode::set_switch(), LODNode::show_all_switches(), LODNode::show_switch(), GeomTransformer::transform_vertices(), GeomNode::unify(), PGItem::xform(), and CollisionNode::xform().
void PandaNode::output | ( | ostream & | out | ) | const [virtual] |
Outputs the Namable.
This function simply writes the name to the output stream; most Namable derivatives will probably redefine this.
Reimplemented from Namable.
Reimplemented in BulletBodyNode, BulletRigidBodyNode, CollisionNode, ButtonNode, HermiteCurve, RopeNode, SheetNode, Fog, GeomNode, LensNode, OccluderNode, PlaneNode, PolylightNode, PortalNode, CallbackNode, FadeLODNode, LODNode, ForceNode, MouseRecorder, SpeedTreeNode, and TextNode.
Definition at line 2348 of file pandaNode.cxx.
Referenced by DriveInterface::force_dgraph(), RopeNode::output(), and HermiteCurve::output().
void PandaNode::parents_changed | ( | ) | [protected, virtual] |
Called after a scene graph update that either adds or remove parents from this node, this just provides a hook for derived PandaNode objects that need to update themselves based on the set of parents the node has.
Reimplemented in BulletGhostNode, and DataNode.
Definition at line 2948 of file pandaNode.cxx.
Referenced by add_child(), add_stashed(), remove_child(), and replace_child().
void PandaNode::prepare_scene | ( | GraphicsStateGuardianBase * | gsg, |
const RenderState * | node_state | ||
) |
Walks through the scene graph beginning at this node, and does whatever initialization is required to render the scene properly with the indicated GSG.
It is not strictly necessary to call this, since the GSG will initialize itself when the scene is rendered, but this may take some of the overhead away from that process.
In particular, this will ensure that textures and vertex buffers within the scene are loaded into graphics memory.
Reimplemented in SpeedTreeNode.
Definition at line 2289 of file pandaNode.cxx.
References Thread::get_current_thread(), and r_prepare_scene().
Referenced by NodePath::prepare_scene().
bool PandaNode::preserve_name | ( | ) | const [virtual] |
Returns true if the node's name has extrinsic meaning and must be preserved across a flatten operation, false otherwise.
Reimplemented in CollisionNode, ModelNode, OccluderNode, and PortalNode.
Definition at line 331 of file pandaNode.cxx.
Referenced by SceneGraphReducer::choose_name().
void PandaNode::r_copy_children | ( | const PandaNode * | from, |
PandaNode::InstanceMap & | inst_map, | ||
Thread * | current_thread | ||
) | [protected, virtual] |
This is called by r_copy_subgraph(); the copy has already been made of this particular node (and this is the copy); this function's job is to copy all of the children from the original.
Note that it includes the parameter inst_map, which is a map type, and is not (and cannot be) exported from PANDA.DLL. Thus, any derivative of PandaNode that is not also a member of PANDA.DLL *cannot* access this map, and probably should not even override this function.
Reimplemented in Character, and PGVirtualFrame.
Definition at line 3048 of file pandaNode.cxx.
References get_child().
void PandaNode::r_mark_geom_bounds_stale | ( | Thread * | current_thread | ) | [protected, virtual] |
Recursively calls Geom::mark_bounds_stale() on every Geom at this node and below.
Reimplemented in GeomNode.
Definition at line 2905 of file pandaNode.cxx.
References PandaNode::Children::get_child(), get_children(), PandaNode::Children::get_num_children(), PandaNode::Stashed::get_num_stashed(), get_stashed(), PandaNode::Stashed::get_stashed(), and r_mark_geom_bounds_stale().
Referenced by PartBundleNode::apply_attribs_to_vertices(), and r_mark_geom_bounds_stale().
void PandaNode::r_prepare_scene | ( | GraphicsStateGuardianBase * | gsg, |
const RenderState * | node_state, | ||
GeomTransformer & | transformer, | ||
Thread * | current_thread | ||
) | [virtual] |
The recursive implementation of prepare_scene().
Don't call this directly; call PandaNode::prepare_scene() or NodePath::prepare_scene() instead.
Reimplemented in GeomNode, PGItem, and TextNode.
Definition at line 3084 of file pandaNode.cxx.
References PandaNode::Children::get_child(), get_children(), PandaNode::Children::get_num_children(), PandaNode::Stashed::get_num_stashed(), PandaNode::Stashed::get_stashed(), get_stashed(), get_state(), and r_prepare_scene().
Referenced by prepare_scene(), TextNode::r_prepare_scene(), PGItem::r_prepare_scene(), and r_prepare_scene().
void PandaNode::register_with_read_factory | ( | ) | [static] |
Tells the BamReader how to create objects of type PandaNode.
Reimplemented in AnimBundleNode, Character, CollisionNode, CubicCurveseg, HermiteCurve, NurbsCurve, RopeNode, SheetNode, Camera, Fog, GeomNode, LensNode, ModelNode, ModelRoot, OccluderNode, PlaneNode, PolylightNode, PortalNode, AmbientLight, CallbackNode, DirectionalLight, FadeLODNode, LODNode, PointLight, SequenceNode, Spotlight, SwitchNode, UvScrollNode, MouseRecorder, and SpeedTreeNode.
Definition at line 4282 of file pandaNode.cxx.
References BamReader::get_factory(), make_from_bam(), and Factory< Type >::register_factory().
void PandaNode::remove_all_children | ( | Thread * | current_thread = Thread::get_current_thread() | ) |
Removes all the children from the node at once, including stashed children.
This can only be called from the top pipeline stage (i.e. from App).
Definition at line 1069 of file pandaNode.cxx.
References children_changed(), force_bounds_stale(), and TypedWritable::mark_bam_modified().
Referenced by MouseWatcherGroup::clear_regions(), MouseWatcherGroup::do_update_regions(), GeoMipTerrain::generate(), steal_children(), and GeoMipTerrain::update().
bool PandaNode::remove_child | ( | PandaNode * | child_node, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Removes the indicated child from the node.
Returns true if the child was removed, false if it was not already a child of the node. This will also successfully remove the child if it had been stashed.
Definition at line 811 of file pandaNode.cxx.
References children_changed(), force_bounds_stale(), and parents_changed().
void PandaNode::remove_child | ( | int | child_index, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Removes the nth child from the node.
Definition at line 776 of file pandaNode.cxx.
References children_changed(), force_bounds_stale(), Thread::get_pipeline_stage(), and TypedWritable::mark_bam_modified().
Referenced by add_child(), add_stashed(), MouseWatcherGroup::do_remove_region(), LensNode::hide_frustum(), PGVirtualFrame::r_copy_children(), SceneGraphReducer::r_flatten(), replace_node(), PGScrollFrame::setup(), PGSliderBar::setup_scroll_bar(), PGSliderBar::setup_slider(), and stash_child().
void PandaNode::remove_stashed | ( | int | child_index, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Removes the nth stashed child from the node.
Definition at line 1035 of file pandaNode.cxx.
References children_changed(), force_bounds_stale(), Thread::get_pipeline_stage(), and TypedWritable::mark_bam_modified().
Referenced by unstash_child().
bool PandaNode::replace_child | ( | PandaNode * | orig_child, |
PandaNode * | new_child, | ||
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Searches for the orig_child node in the node's list of children, and replaces it with the new_child instead.
Returns true if the replacement is made, or false if the node is not a child or if there is some other problem.
Definition at line 850 of file pandaNode.cxx.
References children_changed(), and parents_changed().
Referenced by SceneGraphReducer::r_apply_attribs(), and replace_node().
void PandaNode::replace_node | ( | PandaNode * | other | ) |
Inserts this node into the scene graph in place of the other one, and removes the other node.
All scene graph attributes (TransformState, RenderState, etc.) are copied to this node.
All children are moved to this node, and removed from the old node. The new node is left in the same place in the old node's parent's list of children.
Even NodePaths that reference the old node are updated in-place to reference the new node instead.
This method is intended to be used to replace a node of a given type in the scene graph with a node of a different type.
Definition at line 1936 of file pandaNode.cxx.
References copy_all_properties(), find_parent(), Thread::get_current_thread(), PandaNode::Parents::get_num_parents(), PandaNode::Parents::get_parent(), get_parents(), remove_child(), replace_child(), and steal_children().
Referenced by SceneGraphReducer::do_flatten_siblings().
void PandaNode::reset_all_prev_transform | ( | Thread * | current_thread = Thread::get_current_thread() | ) | [static] |
Visits all nodes in the world with the _dirty_prev_transform flag--that is, all nodes whose _prev_transform is different from the _transform in pipeline stage 0--and resets the _prev_transform to be the same as _transform.
Definition at line 1441 of file pandaNode.cxx.
References Thread::get_pipeline_stage(), and TypedWritable::mark_bam_modified().
void PandaNode::reset_prev_transform | ( | Thread * | current_thread = Thread::get_current_thread() | ) |
Resets the transform that represents this node's "previous" position to the same as the current transform.
This is not the same thing as clearing it to identity.
Definition at line 1415 of file pandaNode.cxx.
References TypedWritable::mark_bam_modified().
Referenced by AccumulatedAttribs::apply_to_node(), NodePath::detach_node(), NodePath::remove_node(), NodePath::reparent_to(), NodePath::set_mat(), NodePath::set_pos(), NodePath::set_pos_hpr(), NodePath::set_pos_hpr_scale(), NodePath::set_pos_hpr_scale_shear(), NodePath::set_pos_quat(), NodePath::set_pos_quat_scale(), NodePath::set_pos_quat_scale_shear(), NodePath::stash_to(), and NodePath::wrt_reparent_to().
bool PandaNode::safe_to_combine | ( | ) | const [virtual] |
Returns true if it is generally safe to combine this particular kind of PandaNode with other kinds of PandaNodes of compatible type, adding children or whatever.
For instance, an LODNode should not be combined with any other PandaNode, because its set of children is meaningful.
Reimplemented in BulletBaseCharacterControllerNode, BulletBodyNode, BulletDebugNode, GeomNode, ModelNode, CallbackNode, LODNode, SequenceNode, SwitchNode, and UvScrollNode.
Definition at line 293 of file pandaNode.cxx.
Referenced by SceneGraphReducer::consider_child(), and SceneGraphReducer::flatten_siblings().
bool PandaNode::safe_to_combine_children | ( | ) | const [virtual] |
Returns true if it is generally safe to combine the children of this PandaNode with each other.
For instance, an LODNode's children should not be combined with each other, because the set of children is meaningful.
Reimplemented in BulletBaseCharacterControllerNode, BulletBodyNode, BulletDebugNode, LODNode, SequenceNode, and SwitchNode.
Definition at line 307 of file pandaNode.cxx.
Referenced by SceneGraphReducer::flatten(), and SceneGraphReducer::r_flatten().
bool PandaNode::safe_to_flatten | ( | ) | const [virtual] |
Returns true if it is generally safe to flatten out this particular kind of PandaNode by duplicating instances (by calling dupe_for_flatten()), false otherwise (for instance, a Camera cannot be safely flattened, because the Camera pointer itself is meaningful).
Reimplemented in BulletBaseCharacterControllerNode, BulletBodyNode, BulletDebugNode, AnimBundleNode, ParametricCurve, Camera, GeomNode, ModelNode, UvScrollNode, ForceNode, and PhysicalNode.
Definition at line 249 of file pandaNode.cxx.
Referenced by SceneGraphReducer::r_apply_attribs().
bool PandaNode::safe_to_flatten_below | ( | ) | const [virtual] |
Returns true if a flatten operation may safely continue past this node, or false if nodes below this node may not be molested.
Reimplemented in BulletBaseCharacterControllerNode, BulletBodyNode, BulletDebugNode, and ModelNode.
Definition at line 319 of file pandaNode.cxx.
Referenced by SceneGraphReducer::r_apply_attribs(), and SceneGraphReducer::r_flatten().
bool PandaNode::safe_to_modify_transform | ( | ) | const [virtual] |
Returns true if it is safe to automatically adjust the transform on this kind of node.
Usually, this is only a bad idea if the user expects to find a particular transform on the node.
ModelNodes with the preserve_transform flag set are presently the only kinds of nodes that should not have their transform even adjusted.
Reimplemented in BulletBaseCharacterControllerNode, BulletBodyNode, BulletDebugNode, and ModelNode.
Definition at line 278 of file pandaNode.cxx.
Referenced by SceneGraphReducer::r_apply_attribs().
bool PandaNode::safe_to_transform | ( | ) | const [virtual] |
Returns true if it is generally safe to transform this particular kind of PandaNode by calling the xform() method, false otherwise.
Reimplemented in BulletBaseCharacterControllerNode, BulletBodyNode, BulletDebugNode, ParametricCurve, RopeNode, SheetNode, Camera, and ModelNode.
Definition at line 261 of file pandaNode.cxx.
Referenced by SceneGraphReducer::r_apply_attribs().
void PandaNode::set_attrib | ( | const RenderAttrib * | attrib, |
int | override = 0 |
||
) |
Adds the indicated render attribute to the scene graph on this node.
This attribute will now apply to this node and everything below. If there was already an attribute of the same type, it is replaced.
Definition at line 1186 of file pandaNode.cxx.
References Thread::get_current_thread(), TypedWritable::mark_bam_modified(), mark_bounds_stale(), and state_changed().
Referenced by AccumulatedAttribs::apply_to_node(), NodePath::clear_clip_plane(), NodePath::clear_light(), NodePath::clear_tex_gen(), NodePath::clear_tex_transform(), NodePath::clear_texture(), NodePath::compose_color_scale(), NodePath::set_all_color_scale(), NodePath::set_alpha_scale(), NodePath::set_antialias(), NodePath::set_attrib(), NodePath::set_audio_volume(), NodePath::set_audio_volume_off(), NodePath::set_bin(), NodePath::set_clip_plane(), NodePath::set_clip_plane_off(), NodePath::set_color(), NodePath::set_color_off(), NodePath::set_color_scale(), NodePath::set_color_scale_off(), NodePath::set_depth_offset(), NodePath::set_depth_test(), NodePath::set_depth_write(), NodePath::set_fog(), NodePath::set_fog_off(), NodePath::set_instance_count(), NodePath::set_light(), NodePath::set_light_off(), NodePath::set_material(), NodePath::set_material_off(), NodePath::set_render_mode(), NodePath::set_render_mode_filled(), NodePath::set_render_mode_perspective(), NodePath::set_render_mode_thickness(), NodePath::set_render_mode_wireframe(), NodePath::set_shader_auto(), NodePath::set_tex_gen(), NodePath::set_tex_transform(), NodePath::set_texture(), NodePath::set_texture_off(), NodePath::set_transparency(), NodePath::set_two_sided(), SceneGraphAnalyzerMeter::setup_window(), and FrameRateMeter::setup_window().
void PandaNode::set_bound | ( | const BoundingVolume * | volume | ) |
Deprecated.
Use set_bounds() instead.
Definition at line 2484 of file pandaNode.cxx.
References set_bounds().
void PandaNode::set_bounds | ( | const BoundingVolume * | volume | ) |
Resets the bounding volume so that it is the indicated volume.
When it is explicitly set, the bounding volume will no longer be automatically computed according to the contents of the node itself, for nodes like GeomNodes and TextNodes that contain substance (but the bounding volume will still be automatically expanded to include its children).
Call clear_bounds() if you would like to return the bounding volume to its default behavior later.
Definition at line 2463 of file pandaNode.cxx.
References Thread::get_current_thread(), TypedWritable::mark_bam_modified(), and mark_bounds_stale().
Referenced by clear_bounds(), and set_bound().
void PandaNode::set_bounds_type | ( | BoundingVolume::BoundsType | bounds_type | ) |
Specifies the desired type of bounding volume that will be created for this node.
This is normally BoundingVolume::BT_default, which means to set the type according to the config variable "bounds-type".
If this is BT_sphere or BT_box, a BoundingSphere or BoundingBox is explicitly created. If it is BT_best, the appropriate type to best enclose the node's children is created.
This affects the bounding volume returned by get_bounds(), which is not exactly the same bounding volume modified by set_bounds(), because a new bounding volume has to be created that includes this node and all of its children.
Definition at line 2420 of file pandaNode.cxx.
References Thread::get_current_thread(), TypedWritable::mark_bam_modified(), mark_bounds_stale(), and mark_internal_bounds_stale().
void PandaNode::set_cull_callback | ( | ) | [protected] |
Intended to be called in the constructor by any subclass that defines cull_callback(), this sets up the flags to indicate that the cullback needs to be called.
Definition at line 3113 of file pandaNode.cxx.
References Thread::get_current_thread(), and TypedWritable::mark_bam_modified().
Referenced by Character::Character(), CallbackNode::clear_cull_callback(), and PortalNode::PortalNode().
void PandaNode::set_effect | ( | const RenderEffect * | effect | ) |
Adds the indicated render effect to the scene graph on this node.
If there was already an effect of the same type, it is replaced.
Definition at line 1253 of file pandaNode.cxx.
References Thread::get_current_thread(), and TypedWritable::mark_bam_modified().
Referenced by CharacterJoint::add_local_transform(), CharacterJoint::add_net_transform(), NodePath::clear_light(), NodePath::clear_occluder(), NodePath::clear_tex_projector(), GraphicsOutput::make_cube_map(), EggLoader::reparent_decals(), NodePath::set_billboard_axis(), NodePath::set_billboard_point_eye(), NodePath::set_billboard_point_world(), NodePath::set_compass(), NodePath::set_effect(), NodePath::set_light(), NodePath::set_occluder(), NodePath::set_tex_projector(), NodePath::show_bounds(), and NodePath::show_tight_bounds().
void PandaNode::set_effects | ( | const RenderEffects * | effects, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Sets the complete RenderEffects that will be applied this node.
This completely replaces whatever has been set on this node via repeated calls to set_attrib().
Definition at line 1326 of file pandaNode.cxx.
References RenderEffects::is_empty(), and TypedWritable::mark_bam_modified().
Referenced by clear_effects(), and NodePath::set_effects().
void PandaNode::set_final | ( | bool | flag | ) | [inline] |
Sets the "final" flag on this PandaNode.
If this is true, than no bounding volume need be tested below it; a positive intersection with this node's bounding volume is deemed to be a positive intersection with all geometry inside.
This is useful to quickly force a larger bounding volume around a node when the GeomNodes themselves are inaccurate for some reason, without forcing a recompute of every nested bounding volume. It's also helpful when the bounding volume is tricked by some special properties, like billboards, that may move geometry out of its bounding volume otherwise.
Definition at line 663 of file pandaNode.I.
References TypedWritable::mark_bam_modified().
void PandaNode::set_internal_bounds | ( | const BoundingVolume * | volume | ) | [protected] |
This is provided as an alternate way for a node to set its own internal bounds, rather than overloading compute_internal_bounds().
If this method is called, the internal bounding volume will immediately be set to the indicated pointer.
Definition at line 2833 of file pandaNode.cxx.
References Thread::get_current_thread(), TypedWritable::mark_bam_modified(), and mark_bounds_stale().
void PandaNode::set_into_collide_mask | ( | CollideMask | mask | ) |
Sets the "into" CollideMask.
This specifies the set of bits that must be shared with a CollisionNode's "from" CollideMask in order for the CollisionNode to detect a collision with this particular node.
The actual CollideMask that will be set is masked by the return value from get_legal_collide_mask(). Thus, the into_collide_mask cannot be set to anything other than nonzero except for those types of nodes that can be collided into, such as CollisionNodes and GeomNodes.
Reimplemented in BulletBodyNode, and CollisionNode.
Definition at line 2196 of file pandaNode.cxx.
References Thread::get_current_thread(), get_legal_collide_mask(), TypedWritable::mark_bam_modified(), and mark_bounds_stale().
void PandaNode::set_overall_hidden | ( | bool | hidden | ) | [inline] |
Sets or clears the hidden flag.
When the hidden flag is true, the node and all of its children are invisible to all cameras, regardless of the setting of any draw masks. Setting the hidden flag to false restores the previous visibility as established by the draw masks.
This actually works by twiddling the reserved _overall_bit in the node's draw mask, which has special meaning.
Definition at line 544 of file pandaNode.I.
References adjust_draw_mask(), and BitMask< PN_uint32, 32 >::all_off().
void PandaNode::set_prev_transform | ( | const TransformState * | transform, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Sets the transform that represents this node's "previous" position, one frame ago, for the purposes of detecting motion for accurate collision calculations.
Definition at line 1385 of file pandaNode.cxx.
References TypedWritable::mark_bam_modified().
Referenced by AccumulatedAttribs::collect(), and NodePath::set_prev_transform().
void PandaNode::set_scene_root_func | ( | SceneRootFunc * | func | ) | [static] |
This is used by the GraphicsEngine to hook in a pointer to the scene_root_func(), the function to determine whether the node is an active scene root.
This back-pointer is necessary because we can't make calls directly into GraphicsEngine, which is in the display module.
Definition at line 4271 of file pandaNode.cxx.
void PandaNode::set_state | ( | const RenderState * | state, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Sets the complete RenderState that will be applied to all nodes at this level and below.
(The actual state that will be applied to lower nodes is based on the composition of RenderStates from above this node as well). This completely replaces whatever has been set on this node via repeated calls to set_attrib().
Definition at line 1295 of file pandaNode.cxx.
References RenderState::is_empty(), TypedWritable::mark_bam_modified(), mark_bounds_stale(), and state_changed().
Referenced by AccumulatedAttribs::apply_to_node(), clear_state(), AccumulatedAttribs::collect(), MultitexReducer::scan(), and NodePath::set_state().
void PandaNode::set_tag | ( | const string & | key, |
const string & | value, | ||
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Associates a user-defined value with a user-defined key which is stored on the node.
This value has no meaning to Panda; but it is stored indefinitely on the node until it is requested again.
Each unique key stores a different string value. There is no effective limit on the number of different keys that may be stored or on the length of any one key's value.
Definition at line 1482 of file pandaNode.cxx.
References TypedWritable::mark_bam_modified().
Referenced by NodePath::set_tag().
void PandaNode::set_transform | ( | const TransformState * | transform, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Sets the transform that will be applied to this node and below.
This defines a new coordinate space at this point in the scene graph and below.
Definition at line 1346 of file pandaNode.cxx.
References TransformState::is_identity(), TypedWritable::mark_bam_modified(), mark_bounds_stale(), and transform_changed().
Referenced by CharacterJoint::add_local_transform(), CharacterJoint::add_net_transform(), AccumulatedAttribs::apply_to_node(), clear_transform(), AccumulatedAttribs::collect(), NodePath::set_transform(), CharacterJoint::update_internals(), and ActorNode::update_transform().
void PandaNode::set_unexpected_change | ( | unsigned int | flags | ) |
Sets one or more of the PandaNode::UnexpectedChange bits on, indicating that the corresponding property should not change again on this node.
Once one of these bits has been set, if the property changes, an assertion failure will be raised, which is designed to assist the developer in identifying the troublesome code that modified the property unexpectedly.
The input parameter is the union of bits that are to be set. To clear these bits later, use clear_unexpected_change().
Since this is a developer debugging tool only, this function does nothing in a production (NDEBUG) build.
Definition at line 2002 of file pandaNode.cxx.
void PandaNode::stash_child | ( | int | child_index, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Stashes the indicated child node.
This removes the child from the list of active children and puts it on a special list of stashed children. This child node no longer contributes to the bounding volume of the PandaNode, and is not visited in normal traversals. It is invisible and uncollidable. The child may later be restored by calling unstash_child().
This can only be called from the top pipeline stage (i.e. from App).
Definition at line 905 of file pandaNode.cxx.
References children_changed(), force_bounds_stale(), get_child(), get_child_sort(), get_num_children(), Thread::get_pipeline_stage(), TypedWritable::mark_bam_modified(), and remove_child().
bool PandaNode::stash_child | ( | PandaNode * | child_node, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | [inline] |
Stashes the indicated child node.
This removes the child from the list of active children and puts it on a special list of stashed children. This child node no longer contributes to the bounding volume of the PandaNode, and is not visited in normal traversals. It is invisible and uncollidable. The child may later be restored by calling unstash_child().
This function returns true if the child node was successfully stashed, or false if it was not a child of the node in the first place (e.g. it was previously stashed).
Definition at line 133 of file pandaNode.I.
References find_child().
void PandaNode::state_changed | ( | ) | [protected, virtual] |
Called after the node's RenderState has been changed for any reason, this just provides a hook so derived classes can do something special in this case.
Definition at line 2986 of file pandaNode.cxx.
Referenced by clear_attrib(), copy_all_properties(), set_attrib(), and set_state().
void PandaNode::steal_children | ( | PandaNode * | other, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Moves all the children from the other node onto this node.
Any NodePaths to child nodes of the other node are truncated, rather than moved to the new parent.
Definition at line 1117 of file pandaNode.cxx.
References add_child(), add_stashed(), get_child(), get_child_sort(), get_num_children(), get_num_stashed(), get_stashed(), get_stashed_sort(), and remove_all_children().
Referenced by replace_node().
void PandaNode::transform_changed | ( | ) | [protected, virtual] |
Called after the node's transform has been changed for any reason, this just provides a hook so derived classes can do something special in this case.
Reimplemented in BulletCharacterControllerNode, BulletGhostNode, BulletRigidBodyNode, BulletSoftBodyNode, ModelNode, and PGItem.
Definition at line 2974 of file pandaNode.cxx.
Referenced by copy_all_properties(), and set_transform().
void PandaNode::unstash_child | ( | int | stashed_index, |
Thread * | current_thread = Thread::get_current_thread() |
||
) |
Returns the indicated stashed node to normal child status.
This removes the child from the list of stashed children and puts it on the normal list of active children. This child node once again contributes to the bounding volume of the PandaNode, and will be visited in normal traversals. It is visible and collidable.
This can only be called from the top pipeline stage (i.e. from App).
Definition at line 950 of file pandaNode.cxx.
References children_changed(), force_bounds_stale(), get_num_stashed(), Thread::get_pipeline_stage(), get_stashed(), get_stashed_sort(), TypedWritable::mark_bam_modified(), and remove_stashed().
bool PandaNode::unstash_child | ( | PandaNode * | child_node, |
Thread * | current_thread = Thread::get_current_thread() |
||
) | [inline] |
Returns the indicated stashed node to normal child status.
This removes the child from the list of stashed children and puts it on the normal list of active children. This child node once again contributes to the bounding volume of the PandaNode, and will be visited in normal traversals. It is visible and collidable.
This function returns true if the child node was successfully stashed, or false if it was not a child of the node in the first place (e.g. it was previously stashed).
Definition at line 159 of file pandaNode.I.
References find_stashed().
void PandaNode::update_bam_nested | ( | BamWriter * | manager | ) | [virtual] |
Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates.
Reimplemented from TypedWritable.
Definition at line 4308 of file pandaNode.cxx.
Writes the contents of this object to the datagram for shipping out to a Bam file.
Reimplemented from TypedWritable.
Reimplemented in AnimBundleNode, PartBundleNode, Character, CollisionNode, DataNode, CubicCurveseg, HermiteCurve, NurbsCurve, ParametricCurve, PiecewiseCurve, RopeNode, SheetNode, Camera, Fog, GeomNode, LensNode, ModelNode, ModelRoot, OccluderNode, PlaneNode, PolylightNode, PortalNode, AmbientLight, CallbackNode, DirectionalLight, FadeLODNode, LightLensNode, LightNode, LODNode, PointLight, SequenceNode, Spotlight, SwitchNode, UvScrollNode, MouseRecorder, and SpeedTreeNode.
Definition at line 4293 of file pandaNode.cxx.
References Datagram::add_string(), and BamWriter::write_cdata().
This method is provided for the benefit of classes (like MouseRecorder) that inherit from PandaMode and also RecorderBase.
It's not virtual at this level since it doesn't need to be (it's called up from the derived class).
This method acts very like write_datagram, but it writes the node as appropriate for writing a RecorderBase object as described in the beginning of a session file, meaning it doesn't need to write things such as children. It balances with fillin_recorder().
Reimplemented in MouseRecorder.
Definition at line 4330 of file pandaNode.cxx.
References Datagram::add_string().
void PandaNode::xform | ( | const LMatrix4 & | mat | ) | [virtual] |
Transforms the contents of this PandaNode by the indicated matrix, if it means anything to do so.
For most kinds of PandaNodes, this does nothing.
Reimplemented in PartBundleNode, CollisionNode, Fog, GeomNode, LensNode, OccluderNode, PlaneNode, PortalNode, DirectionalLight, LODNode, PointLight, Spotlight, PGEntry, PGItem, PGScrollFrame, and PGSliderBar.
Definition at line 389 of file pandaNode.cxx.
Referenced by SpeedTreeNode::apply_attribs_to_vertices(), and apply_attribs_to_vertices().