Panda3D
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A container for geometry primitives. More...
#include "geom.h"
Classes | |
class | CacheEntry |
class | CacheKey |
class | CData |
class | CDataCache |
Public Types | |
typedef pmap< const CacheKey *, PT(CacheEntry), IndirectLess< CacheKey > > | Cache |
Public Member Functions | |
Geom (const GeomVertexData *data) | |
void | add_primitive (const GeomPrimitive *primitive) |
Adds a new GeomPrimitive structure to the Geom object. | |
void | calc_tight_bounds (LPoint3 &min_point, LPoint3 &max_point, bool &found_any, const GeomVertexData *vertex_data, bool got_mat, const LMatrix4 &mat, Thread *current_thread) const |
Expands min_point and max_point to include all of the vertices in the Geom, if any. | |
void | calc_tight_bounds (LPoint3 &min_point, LPoint3 &max_point, bool &found_any, Thread *current_thread) const |
Expands min_point and max_point to include all of the vertices in the Geom, if any. | |
void | calc_tight_bounds (LPoint3 &min_point, LPoint3 &max_point, bool &found_any, const GeomVertexData *vertex_data, bool got_mat, const LMatrix4 &mat, const InternalName *column_name, Thread *current_thread) const |
Similar to calc_tight_bounds(), for UV coordinates or other named columns. | |
bool | check_valid () const |
Verifies that the all of the primitives within the geom reference vertices that actually exist within the geom's GeomVertexData. | |
bool | check_valid (const GeomVertexData *vertex_data) const |
Verifies that the all of the primitives within the geom reference vertices that actually exist within the indicated GeomVertexData. | |
void | clear_bounds () |
Reverses the effect of a previous call to set_bounds(), and allows the bounding volume to be automatically computed once more based on the vertices. | |
void | clear_cache () |
Removes all of the previously-cached results of munge_geom(). | |
void | clear_cache_stage (Thread *current_thread) |
Removes all of the previously-cached results of munge_geom(), at the current pipeline stage and upstream. | |
void | clear_primitives () |
Removes all the primitives from the Geom object (but keeps the same table of vertices). | |
virtual bool | copy_primitives_from (const Geom *other) |
Copies the primitives from the indicated Geom into this one. | |
CPT (GeomVertexData) get_vertex_data(Thread *current_thread | |
CPT (GeomPrimitive) get_primitive(int i) const | |
CPT (BoundingVolume) get_bounds(Thread *current_thread | |
void | decompose_in_place () |
Decomposes all of the primitives within this Geom, leaving the results in place. | |
void | doubleside_in_place () |
Doublesides all of the primitives within this Geom, leaving the results in place. | |
bool | draw (GraphicsStateGuardianBase *gsg, const GeomMunger *munger, const GeomVertexData *vertex_data, bool force, Thread *current_thread) const |
Actually draws the Geom with the indicated GSG, using the indicated vertex data (which might have been pre-munged to support the GSG's needs). | |
virtual void | finalize (BamReader *manager) |
Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed. | |
virtual TypeHandle | force_init_type () |
BoundingVolume::BoundsType | get_bounds_type () const |
Returns the bounding volume type set with set_bounds_type(). | |
int | get_geom_rendering () const |
Returns the set of GeomRendering bits that represent the rendering properties required to properly render this Geom. | |
UpdateSeq | get_modified (Thread *current_thread=Thread::get_current_thread()) const |
Returns a sequence number which is guaranteed to change at least every time any of the primitives in the Geom is modified, or the set of primitives is modified. | |
int | get_nested_vertices (Thread *current_thread=Thread::get_current_thread()) const |
Returns the number of vertices rendered by all primitives within the Geom. | |
int | get_num_bytes () const |
Returns the number of bytes consumed by the geom and its primitives (but not including its vertex table). | |
int | get_num_primitives () const |
Returns the number of GeomPrimitive objects stored within the Geom, each of which represents a number of primitives of a particular type. | |
PrimitiveType | get_primitive_type () const |
Returns the fundamental primitive type that is common to all GeomPrimitives added within the Geom. | |
ShadeModel | get_shade_model () const |
Returns the shade model common to all of the individual GeomPrimitives that have been added to the geom. | |
virtual TypeHandle | get_type () const |
UsageHint | get_usage_hint () const |
Returns the minimum (i.e. | |
bool | is_empty () const |
Returns true if there appear to be no vertices to be rendered by this Geom, false if has some actual data. | |
bool | is_prepared (PreparedGraphicsObjects *prepared_objects) const |
Returns true if the geom has already been prepared or enqueued for preparation on the indicated GSG, false otherwise. | |
virtual Geom * | make_copy () const |
Returns a newly-allocated Geom that is a shallow copy of this one. | |
int | make_nonindexed (bool composite_only) |
Converts the geom from indexed to nonindexed by duplicating vertices as necessary. | |
void | make_points_in_place () |
Replaces the GeomPrimitives within this Geom with corresponding GeomPoints. | |
MAKE_SEQ (get_primitives, get_num_primitives, get_primitive) | |
void | mark_bounds_stale () const |
Marks the bounding volume of the Geom as stale so that it should be recomputed. | |
void | offset_vertices (const GeomVertexData *data, int offset) |
Replaces a Geom's vertex table with a new table, and simultaneously adds the indicated offset to all vertex references within the Geom's primitives. | |
void | operator= (const Geom ©) |
The copy assignment operator is not pipeline-safe. | |
virtual void | output (ostream &out) const |
void | prepare (PreparedGraphicsObjects *prepared_objects) |
Indicates that the geom should be enqueued to be prepared in the indicated prepared_objects at the beginning of the next frame. | |
GeomContext * | prepare_now (PreparedGraphicsObjects *prepared_objects, GraphicsStateGuardianBase *gsg) |
Creates a context for the geom on the particular GSG, if it does not already exist. | |
PT (GeomVertexData) modify_vertex_data() | |
PT (GeomPrimitive) modify_primitive(int i) | |
PT (Geom) decompose() const | |
PT (Geom) doubleside() const | |
PT (Geom) reverse() const | |
PT (Geom) rotate() const | |
PT (Geom) unify(int max_indices | |
PT (Geom) make_points() const | |
bool | release (PreparedGraphicsObjects *prepared_objects) |
Frees the geom context only on the indicated object, if it exists there. | |
int | release_all () |
Frees the context allocated on all objects for which the geom has been declared. | |
void | remove_primitive (int i) |
Removes the ith primitive from the list. | |
bool | request_resident () const |
Returns true if all the primitive arrays are currently resident in memory. | |
void | reverse_in_place () |
Reverses all of the primitives within this Geom, leaving the results in place. | |
void | rotate_in_place () |
Rotates all of the primitives within this Geom, leaving the results in place. | |
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 Geom. | |
void | set_primitive (int i, const GeomPrimitive *primitive) |
Replaces the ith GeomPrimitive object stored within the Geom with the new object. | |
void | set_usage_hint (UsageHint usage_hint) |
Changes the UsageHint hint for all of the primitives on this Geom to the same value. | |
void | set_vertex_data (const GeomVertexData *data) |
Replaces the Geom's underlying vertex data table with a completely new table. | |
void | transform_vertices (const LMatrix4 &mat) |
Applies the indicated transform to all of the vertices in the Geom. | |
void | unify_in_place (int max_indices, bool preserve_order) |
Unifies all of the primitives contained within this Geom into a single (or as few as possible, within the constraints of max_indices) primitive objects. | |
virtual void | write (ostream &out, int indent_level=0) 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. | |
Static Public Member Functions | |
static TypeHandle | get_class_type () |
static UpdateSeq | get_next_modified () |
Returns a monotonically increasing sequence. | |
static void | init_type () |
static void | register_with_read_factory () |
Tells the BamReader how to create objects of type Geom. | |
Public Attributes | |
bool preserve_order | const |
Protected Member Functions | |
Geom (const Geom ©) | |
Use make_copy() to duplicate a Geom. | |
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 Geom. | |
virtual | PT (CopyOnWriteObject) make_cow_copy() |
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 Geom is encountered in the Bam file. | |
Friends | |
class | CacheEntry |
class | GeomContext |
class | GeomMunger |
class | GeomPipelineReader |
class | PreparedGraphicsObjects |
A container for geometry primitives.
This class associates one or more GeomPrimitive objects with a table of vertices defined by a GeomVertexData object. All of the primitives stored in a particular Geom are drawn from the same set of vertices (each primitive uses a subset of all of the vertices in the table), and all of them must be rendered at the same time, in the same graphics state.
Geom::Geom | ( | const Geom & | copy | ) | [protected] |
Use make_copy() to duplicate a Geom.
void Geom::add_primitive | ( | const GeomPrimitive * | primitive | ) |
Adds a new GeomPrimitive structure to the Geom object.
This specifies a particular subset of vertices that are used to define geometric primitives of the indicated type.
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 366 of file geom.cxx.
References GeomPrimitive::check_valid(), clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
Referenced by copy_primitives_from().
void Geom::calc_tight_bounds | ( | LPoint3 & | min_point, |
LPoint3 & | max_point, | ||
bool & | found_any, | ||
const GeomVertexData * | vertex_data, | ||
bool | got_mat, | ||
const LMatrix4 & | mat, | ||
Thread * | current_thread | ||
) | const [inline] |
Expands min_point and max_point to include all of the vertices in the Geom, if any.
found_any is set true if any points are found. It is the caller's responsibility to initialize min_point, max_point, and found_any before calling this function.
This version of the method allows the Geom to specify an alternate vertex data table (for instance, if the vertex data has already been munged), and also allows the result to be computed in any coordinate space by specifying a transform matrix.
Definition at line 369 of file geom.I.
Referenced by calc_tight_bounds().
void Geom::calc_tight_bounds | ( | LPoint3 & | min_point, |
LPoint3 & | max_point, | ||
bool & | found_any, | ||
Thread * | current_thread | ||
) | const [inline] |
Expands min_point and max_point to include all of the vertices in the Geom, if any.
found_any is set true if any points are found. It is the caller's responsibility to initialize min_point, max_point, and found_any before calling this function.
This version of the method assumes the Geom will use its own vertex data, and the results are computed in the Geom's own coordinate space.
Definition at line 396 of file geom.I.
References calc_tight_bounds(), and LMatrix4f::ident_mat().
void Geom::calc_tight_bounds | ( | LPoint3 & | min_point, |
LPoint3 & | max_point, | ||
bool & | found_any, | ||
const GeomVertexData * | vertex_data, | ||
bool | got_mat, | ||
const LMatrix4 & | mat, | ||
const InternalName * | column_name, | ||
Thread * | current_thread | ||
) | const [inline] |
Similar to calc_tight_bounds(), for UV coordinates or other named columns.
bool Geom::check_valid | ( | ) | const |
Verifies that the all of the primitives within the geom reference vertices that actually exist within the geom's GeomVertexData.
Returns true if the geom appears to be valid, false otherwise.
Definition at line 924 of file geom.cxx.
References Thread::get_current_thread().
Referenced by GeomNode::add_geom(), GeomNode::check_valid(), and GeomNode::set_geom().
bool Geom::check_valid | ( | const GeomVertexData * | vertex_data | ) | const |
Verifies that the all of the primitives within the geom reference vertices that actually exist within the indicated GeomVertexData.
Returns true if the geom appears to be valid, false otherwise.
Definition at line 941 of file geom.cxx.
References Thread::get_current_thread().
void Geom::clear_bounds | ( | ) | [inline] |
Reverses the effect of a previous call to set_bounds(), and allows the bounding volume to be automatically computed once more based on the vertices.
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
void Geom::clear_cache | ( | ) |
Removes all of the previously-cached results of munge_geom().
This blows away the entire cache, upstream and downstream the pipeline. Use clear_cache_stage() instead if you only want to blow away the cache at the current stage and upstream.
Definition at line 1045 of file geom.cxx.
Referenced by operator=().
void Geom::clear_cache_stage | ( | Thread * | current_thread | ) |
Removes all of the previously-cached results of munge_geom(), at the current pipeline stage and upstream.
Does not affect the downstream cache.
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 1068 of file geom.cxx.
Referenced by add_primitive(), clear_primitives(), decompose_in_place(), doubleside_in_place(), make_nonindexed(), make_points_in_place(), offset_vertices(), remove_primitive(), reverse_in_place(), rotate_in_place(), set_primitive(), set_usage_hint(), set_vertex_data(), and unify_in_place().
void Geom::clear_primitives | ( | ) |
Removes all the primitives from the Geom object (but keeps the same table of vertices).
You may then re-add primitives one at a time via calls to add_primitive().
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 438 of file geom.cxx.
References clear_cache_stage(), and Thread::get_current_thread().
bool Geom::copy_primitives_from | ( | const Geom * | other | ) | [virtual] |
Copies the primitives from the indicated Geom into this one.
This does require that both Geoms contain the same fundamental type primitives, both have a compatible shade model, and both use the same GeomVertexData. Both Geoms must also be the same specific class type (i.e. if one is a GeomTextGlyph, they both must be.)
Returns true if the copy is successful, or false otherwise (because the Geoms were mismatched).
Definition at line 794 of file geom.cxx.
References add_primitive(), get_num_primitives(), get_primitive_type(), and get_shade_model().
void Geom::decompose_in_place | ( | ) |
Decomposes all of the primitives within this Geom, leaving the results in place.
See GeomPrimitive::decompose().
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 461 of file geom.cxx.
References clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
void Geom::doubleside_in_place | ( | ) |
Doublesides all of the primitives within this Geom, leaving the results in place.
See GeomPrimitive::doubleside().
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 499 of file geom.cxx.
References clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
bool Geom::draw | ( | GraphicsStateGuardianBase * | gsg, |
const GeomMunger * | munger, | ||
const GeomVertexData * | vertex_data, | ||
bool | force, | ||
Thread * | current_thread | ||
) | const |
Actually draws the Geom with the indicated GSG, using the indicated vertex data (which might have been pre-munged to support the GSG's needs).
Returns true if all of the primitives were drawn normally, false if there was a problem (for instance, some of the data was nonresident). If force is passed true, it will wait for the data to become resident if necessary.
Definition at line 1210 of file geom.cxx.
References GeomPipelineReader::check_usage_hint(), and GeomPipelineReader::draw().
void Geom::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 Geom.
Reimplemented from TypedWritable.
Definition at line 1570 of file geom.cxx.
References BamReader::read_cdata().
void Geom::finalize | ( | BamReader * | manager | ) | [virtual] |
Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed.
Reimplemented from TypedWritable.
BoundingVolume::BoundsType Geom::get_bounds_type | ( | ) | const [inline] |
Returns the bounding volume type set with set_bounds_type().
int Geom::get_geom_rendering | ( | ) | const [inline] |
Returns the set of GeomRendering bits that represent the rendering properties required to properly render this Geom.
Definition at line 54 of file geom.I.
Referenced by StandardMunger::munge_geom_impl(), and StandardMunger::premunge_geom_impl().
UpdateSeq Geom::get_modified | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const [inline] |
Returns a sequence number which is guaranteed to change at least every time any of the primitives in the Geom is modified, or the set of primitives is modified.
However, this does not include modifications to the vertex data, which should be tested separately.
Definition at line 256 of file geom.I.
Referenced by GeomMunger::munge_geom().
int Geom::get_nested_vertices | ( | Thread * | current_thread = Thread::get_current_thread() | ) | const |
UpdateSeq Geom::get_next_modified | ( | ) | [static] |
Returns a monotonically increasing sequence.
Each time this is called, a new sequence number is returned, higher than the previous value.
This is used to ensure that GeomVertexArrayData::get_modified() and GeomPrimitive::get_modified() update from the same space, so that Geom::get_modified() returns a meaningful value.
Definition at line 1236 of file geom.cxx.
Referenced by GeomPrimitive::add_consecutive_vertices(), add_primitive(), GeomPrimitive::add_vertex(), GeomVertexData::clear_rows(), GeomPrimitive::clear_vertices(), GeomPrimitive::close_primitive(), GeomVertexArrayDataHandle::copy_data_from(), GeomVertexArrayDataHandle::copy_subdata_from(), decompose_in_place(), doubleside_in_place(), GeomVertexArrayDataHandle::get_write_pointer(), make_nonindexed(), make_points_in_place(), GeomPrimitive::modify_ends(), offset_vertices(), GeomPrimitive::offset_vertices(), GeomVertexArrayData::operator=(), GeomVertexData::operator=(), remove_primitive(), reverse_in_place(), rotate_in_place(), GeomVertexArrayDataHandle::set_data(), GeomPrimitive::set_ends(), GeomVertexData::set_format(), GeomPrimitive::set_minmax(), GeomPrimitive::set_nonindexed_vertices(), set_primitive(), GeomVertexData::set_slider_table(), GeomVertexArrayDataHandle::set_subdata(), GeomVertexData::set_transform_blend_table(), GeomVertexData::set_transform_table(), set_usage_hint(), GeomVertexArrayData::set_usage_hint(), GeomPrimitive::set_usage_hint(), GeomVertexData::set_usage_hint(), GeomPrimitive::set_vertices(), and unify_in_place().
int Geom::get_num_bytes | ( | ) | const |
int Geom::get_num_primitives | ( | ) | const [inline] |
Returns the number of GeomPrimitive objects stored within the Geom, each of which represents a number of primitives of a particular type.
Definition at line 110 of file geom.I.
Referenced by SpriteParticleRenderer::add_from_node(), copy_primitives_from(), PhysxSoftBodyNode::set_from_geom(), and unify_in_place().
Geom::PrimitiveType Geom::get_primitive_type | ( | ) | const [inline] |
Returns the fundamental primitive type that is common to all GeomPrimitives added within the Geom.
All nested primitives within a particular Geom must be the same type (that is, you can mix triangles and tristrips, because they are both the same fundamental type PT_polygons, but you cannot mix triangles and points withn the same Geom).
Definition at line 28 of file geom.I.
Referenced by copy_primitives_from().
Geom::ShadeModel Geom::get_shade_model | ( | ) | const [inline] |
Returns the shade model common to all of the individual GeomPrimitives that have been added to the geom.
Definition at line 41 of file geom.I.
Referenced by copy_primitives_from().
Geom::UsageHint Geom::get_usage_hint | ( | ) | const [inline] |
Returns the minimum (i.e.
most dynamic) usage_hint among all of the individual GeomPrimitives that have been added to the geom.
Definition at line 67 of file geom.I.
Referenced by SceneGraphReducer::r_make_nonindexed().
bool Geom::is_empty | ( | ) | const [inline] |
Returns true if there appear to be no vertices to be rendered by this Geom, false if has some actual data.
Definition at line 97 of file geom.I.
Referenced by GeomNode::add_for_draw().
bool Geom::is_prepared | ( | PreparedGraphicsObjects * | prepared_objects | ) | const |
Returns true if the geom has already been prepared or enqueued for preparation on the indicated GSG, false otherwise.
Definition at line 1104 of file geom.cxx.
References PreparedGraphicsObjects::is_geom_queued().
Referenced by PreparedGraphicsObjects::is_geom_prepared().
Geom * Geom::make_copy | ( | ) | const [virtual] |
Returns a newly-allocated Geom that is a shallow copy of this one.
It will be a different Geom pointer, but its internal data may or may not be shared with that of the original Geom.
Definition at line 118 of file geom.cxx.
Referenced by StandardMunger::munge_geom_impl(), and StandardMunger::premunge_geom_impl().
TypedWritable * Geom::make_from_bam | ( | const FactoryParams & | params | ) | [static, protected] |
This function is called by the BamReader's factory when a new object of type Geom is encountered in the Bam file.
It should create the Geom and extract its information from the file.
Definition at line 1527 of file geom.cxx.
References BamReader::register_finalize().
Referenced by register_with_read_factory().
int Geom::make_nonindexed | ( | bool | composite_only | ) |
Converts the geom from indexed to nonindexed by duplicating vertices as necessary.
If composite_only is true, then only composite primitives such as trifans and tristrips are converted. Returns the number of GeomPrimitive objects converted.
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 252 of file geom.cxx.
References clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
Referenced by SceneGraphReducer::r_make_nonindexed().
void Geom::make_points_in_place | ( | ) |
Replaces the GeomPrimitives within this Geom with corresponding GeomPoints.
See GeomPrimitive::make_points().
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 752 of file geom.cxx.
References clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
void Geom::mark_bounds_stale | ( | ) | const [inline] |
void Geom::offset_vertices | ( | const GeomVertexData * | data, |
int | offset | ||
) |
Replaces a Geom's vertex table with a new table, and simultaneously adds the indicated offset to all vertex references within the Geom's primitives.
This is intended to be used to combine multiple GeomVertexDatas from different Geoms into a single big buffer, with each Geom referencing a subset of the vertices in the buffer.
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 209 of file geom.cxx.
References clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
void Geom::operator= | ( | const Geom & | copy | ) |
The copy assignment operator is not pipeline-safe.
This will completely obliterate all stages of the pipeline, so don't do it for a Geom that is actively being used for rendering.
Definition at line 84 of file geom.cxx.
References clear_cache().
void Geom::prepare | ( | PreparedGraphicsObjects * | prepared_objects | ) |
Indicates that the geom should be enqueued to be prepared in the indicated prepared_objects at the beginning of the next frame.
This will ensure the geom is already loaded into geom memory if it is expected to be rendered soon.
Use this function instead of prepare_now() to preload geoms from a user interface standpoint.
Definition at line 1092 of file geom.cxx.
References PreparedGraphicsObjects::enqueue_geom().
GeomContext * Geom::prepare_now | ( | PreparedGraphicsObjects * | prepared_objects, |
GraphicsStateGuardianBase * | gsg | ||
) |
Creates a context for the geom on the particular GSG, if it does not already exist.
Returns the new (or old) GeomContext. This assumes that the GraphicsStateGuardian is the currently active rendering context and that it is ready to accept new geoms. If this is not necessarily the case, you should use prepare() instead.
Normally, this is not called directly except by the GraphicsStateGuardian; a geom does not need to be explicitly prepared by the user before it may be rendered.
Definition at line 1181 of file geom.cxx.
References PreparedGraphicsObjects::prepare_geom_now().
Referenced by PreparedGraphicsObjects::begin_frame().
void Geom::register_with_read_factory | ( | ) | [static] |
Tells the BamReader how to create objects of type Geom.
Definition at line 1501 of file geom.cxx.
References BamReader::get_factory(), make_from_bam(), and Factory< Type >::register_factory().
bool Geom::release | ( | PreparedGraphicsObjects * | prepared_objects | ) |
Frees the geom context only on the indicated object, if it exists there.
Returns true if it was released, false if it had not been prepared.
Definition at line 1121 of file geom.cxx.
References PreparedGraphicsObjects::dequeue_geom(), and PreparedGraphicsObjects::release_geom().
int Geom::release_all | ( | ) |
Frees the context allocated on all objects for which the geom has been declared.
Returns the number of contexts which have been freed.
Definition at line 1142 of file geom.cxx.
References PreparedGraphicsObjects::release_geom().
void Geom::remove_primitive | ( | int | i | ) |
Removes the ith primitive from the list.
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 409 of file geom.cxx.
References clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
bool Geom::request_resident | ( | ) | const |
Returns true if all the primitive arrays are currently resident in memory.
If this returns false, the data will be brought back into memory shortly; try again later.
This does not also test the Geom's associated GeomVertexData. That must be tested separately.
Definition at line 861 of file geom.cxx.
Referenced by GeomMunger::munge_geom().
void Geom::reverse_in_place | ( | ) |
Reverses all of the primitives within this Geom, leaving the results in place.
See GeomPrimitive::reverse().
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 537 of file geom.cxx.
References clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
void Geom::rotate_in_place | ( | ) |
Rotates all of the primitives within this Geom, leaving the results in place.
See GeomPrimitive::rotate().
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 575 of file geom.cxx.
References clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
void Geom::set_bounds | ( | const BoundingVolume * | volume | ) | [inline] |
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; call clear_bounds() if you would like to return the bounding volume to its default behavior.
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
void Geom::set_bounds_type | ( | BoundingVolume::BoundsType | bounds_type | ) | [inline] |
Specifies the desired type of bounding volume that will be created for this Geom.
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, a BoundingBox is created.
This affects the implicit bounding volume only. If an explicit bounding volume is set on the Geom with set_bounds(), that bounding volume type is used. (This is different behavior from the similar method on PandaNode.)
void Geom::set_primitive | ( | int | i, |
const GeomPrimitive * | primitive | ||
) |
Replaces the ith GeomPrimitive object stored within the Geom with the new object.
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 320 of file geom.cxx.
References GeomPrimitive::check_valid(), clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
void Geom::set_usage_hint | ( | Geom::UsageHint | usage_hint | ) |
Changes the UsageHint hint for all of the primitives on this Geom to the same value.
See get_usage_hint().
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 134 of file geom.cxx.
References clear_cache_stage(), Thread::get_current_thread(), and get_next_modified().
void Geom::set_vertex_data | ( | const GeomVertexData * | data | ) |
Replaces the Geom's underlying vertex data table with a completely new table.
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 183 of file geom.cxx.
References clear_cache_stage(), and Thread::get_current_thread().
Referenced by GeomTransformer::apply_texture_colors(), StandardMunger::munge_geom_impl(), StandardMunger::premunge_geom_impl(), GeomTransformer::reverse_normals(), GeomTransformer::set_color(), GeomTransformer::set_format(), GeomTransformer::transform_colors(), GeomTransformer::transform_texcoords(), and GeomTransformer::transform_vertices().
void Geom::transform_vertices | ( | const LMatrix4 & | mat | ) |
Applies the indicated transform to all of the vertices in the Geom.
If the Geom happens to share a vertex table with another Geom, this operation will duplicate the vertex table instead of breaking the other Geom; however, if multiple Geoms with shared tables are transformed by the same matrix, they will no longer share tables after the operation. Consider using the GeomTransformer if you will be applying the same transform to multiple Geoms.
void Geom::unify_in_place | ( | int | max_indices, |
bool | preserve_order | ||
) |
Unifies all of the primitives contained within this Geom into a single (or as few as possible, within the constraints of max_indices) primitive objects.
This may require decomposing the primitives if, for instance, the Geom contains both triangle strips and triangle fans.
max_indices represents the maximum number of indices that will be put in any one GeomPrimitive. If preserve_order is true, then the primitives will not be reordered during the operation, even if this results in a suboptimal result.
Don't call this in a downstream thread unless you don't mind it blowing away other changes you might have recently made in an upstream thread.
Definition at line 621 of file geom.cxx.
References GeomPrimitive::check_valid(), clear_cache_stage(), GeomPrimitive::clear_vertices(), Thread::get_current_thread(), get_next_modified(), get_num_primitives(), GeomPrimitive::get_num_vertices(), GeomPrimitive::get_primitive_end(), GeomPrimitive::get_primitive_num_vertices(), GeomPrimitive::get_primitive_start(), GeomPrimitive::get_vertex(), and GeomPrimitive::set_shade_model().
void Geom::write_datagram | ( | BamWriter * | manager, |
Datagram & | dg | ||
) | [virtual] |
Writes the contents of this object to the datagram for shipping out to a Bam file.
Reimplemented from TypedWritable.
Definition at line 1512 of file geom.cxx.
References BamWriter::write_cdata().