Panda3D
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A container for geometry primitives. More...
Public Member Functions | |
__init__ (const GeomVertexData data) | |
addPrimitive (const GeomPrimitive primitive) | |
Inserts a new GeomPrimitive structure to the Geom object. More... | |
bool | checkValid () |
Verifies that the all of the primitives within the geom reference vertices that actually exist within the geom's GeomVertexData. More... | |
bool | checkValid (const GeomVertexData vertex_data) |
Verifies that the all of the primitives within the geom reference vertices that actually exist within the indicated GeomVertexData. More... | |
clearBounds () | |
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. More... | |
clearCache () | |
Removes all of the previously-cached results of munge_geom(). More... | |
clearCacheStage (Thread current_thread) | |
Removes all of the previously-cached results of munge_geom(), at the current pipeline stage and upstream. More... | |
clearPrimitives () | |
Removes all the primitives from the Geom object (but keeps the same table of vertices). More... | |
bool | copyPrimitivesFrom (const Geom other) |
Copies the primitives from the indicated Geom into this one. More... | |
Geom | decompose () |
Decomposes all of the primitives within this Geom, returning the result. More... | |
decomposeInPlace () | |
Decomposes all of the primitives within this Geom, leaving the results in place. More... | |
Geom | doubleside () |
Doublesides all of the primitives within this Geom, returning the result. More... | |
doublesideInPlace () | |
Doublesides all of the primitives within this Geom, leaving the results in place. More... | |
const GeomVertexData | getAnimatedVertexData (bool force, Thread current_thread) |
Returns a GeomVertexData that represents the results of computing the vertex animation on the CPU for this Geom's vertex data. More... | |
const BoundingVolume | getBounds (Thread current_thread) |
Returns the bounding volume for the Geom. More... | |
BoundingVolume::BoundsType | getBoundsType () |
Returns the bounding volume type set with set_bounds_type(). More... | |
int | getGeomRendering () |
Returns the set of GeomRendering bits that represent the rendering properties required to properly render this Geom. More... | |
UpdateSeq | getModified (Thread current_thread) |
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. More... | |
int | getNestedVertices (Thread current_thread) |
Returns the number of vertices rendered by all primitives within the Geom. More... | |
int | getNumBytes () |
Returns the number of bytes consumed by the geom and its primitives (but not including its vertex table). More... | |
int | getNumPrimitives () |
Returns the number of GeomPrimitive objects stored within the Geom, each of which represents a number of primitives of a particular type. More... | |
const GeomPrimitive | getPrimitive (int i) |
Returns a const pointer to the ith GeomPrimitive object stored within the Geom. More... | |
list | getPrimitives () |
GeomEnums::PrimitiveType | getPrimitiveType () |
Returns the fundamental primitive type that is common to all GeomPrimitives added within the Geom. More... | |
GeomEnums::ShadeModel | getShadeModel () |
Returns the shade model common to all of the individual GeomPrimitives that have been added to the geom. More... | |
GeomEnums::UsageHint | getUsageHint () |
Returns the minimum (i.e. More... | |
const GeomVertexData | getVertexData (Thread current_thread) |
Returns a const pointer to the GeomVertexData, for application code to directly examine (but not modify) the geom's underlying data. More... | |
insertPrimitive (int i, const GeomPrimitive primitive) | |
Inserts a new GeomPrimitive structure to the Geom object. More... | |
bool | isEmpty () |
Returns true if there appear to be no vertices to be rendered by this Geom, false if has some actual data. More... | |
bool | isPrepared (PreparedGraphicsObjects prepared_objects) |
Returns true if the geom has already been prepared or enqueued for preparation on the indicated GSG, false otherwise. More... | |
Geom | makeAdjacency () |
Returns a new Geom with each primitive converted into a corresponding version with adjacency information. More... | |
makeAdjacencyInPlace () | |
Replaces the GeomPrimitives within this Geom with corresponding versions with adjacency information. More... | |
Geom | makeCopy () |
Returns a newly-allocated Geom that is a shallow copy of this one. More... | |
Geom | makeLines () |
Returns a new Geom with lines at all the edges. More... | |
makeLinesInPlace () | |
Replaces the GeomPrimitives within this Geom with corresponding GeomLines, representing a wireframe of the primitives. More... | |
int | makeNonindexed (bool composite_only) |
Converts the geom from indexed to nonindexed by duplicating vertices as necessary. More... | |
Geom | makePatches () |
Returns a new Geom with each primitive converted into a patch. More... | |
makePatchesInPlace () | |
Replaces the GeomPrimitives within this Geom with corresponding GeomPatches. More... | |
Geom | makePoints () |
Returns a new Geom with points at all the vertices. More... | |
makePointsInPlace () | |
Replaces the GeomPrimitives within this Geom with corresponding GeomPoints. More... | |
markBoundsStale () | |
Marks the bounding volume of the Geom as stale so that it should be recomputed. More... | |
GeomPrimitive | modifyPrimitive (int i) |
Returns a modifiable pointer to the ith GeomPrimitive object stored within the Geom, so application code can directly manipulate the properties of this primitive. More... | |
GeomVertexData | modifyVertexData () |
Returns a modifiable pointer to the GeomVertexData, so that application code may directly maniuplate the geom's underlying data. More... | |
offsetVertices (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. More... | |
operator new (int size) | |
Geom | operator= (const Geom copy) |
output (Ostream out) | |
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. More... | |
GeomContext | prepareNow (PreparedGraphicsObjects prepared_objects, GraphicsStateGuardianBase gsg) |
Creates a context for the geom on the particular GSG, if it does not already exist. More... | |
bool | release (PreparedGraphicsObjects prepared_objects) |
Frees the geom context only on the indicated object, if it exists there. More... | |
int | releaseAll () |
Frees the context allocated on all objects for which the geom has been declared. More... | |
removePrimitive (int i) | |
Removes the ith primitive from the list. More... | |
bool | requestResident () |
Returns true if all the primitive arrays are currently resident in memory. More... | |
Geom | reverse () |
Reverses all of the primitives within this Geom, returning the result. More... | |
reverseInPlace () | |
Reverses all of the primitives within this Geom, leaving the results in place. More... | |
Geom | rotate () |
Rotates all of the primitives within this Geom, returning the result. More... | |
rotateInPlace () | |
Rotates all of the primitives within this Geom, leaving the results in place. More... | |
setBounds (const BoundingVolume volume) | |
Resets the bounding volume so that it is the indicated volume. More... | |
setBoundsType (BoundingVolume::BoundsType bounds_type) | |
Specifies the desired type of bounding volume that will be created for this Geom. More... | |
setPrimitive (int i, const GeomPrimitive primitive) | |
Replaces the ith GeomPrimitive object stored within the Geom with the new object. More... | |
setUsageHint (GeomEnums::UsageHint usage_hint) | |
Changes the UsageHint hint for all of the primitives on this Geom to the same value. More... | |
setVertexData (const GeomVertexData data) | |
Replaces the Geom's underlying vertex data table with a completely new table. More... | |
transformVertices (const LMatrix4 mat) | |
Applies the indicated transform to all of the vertices in the Geom. More... | |
Geom | unify (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. More... | |
unifyInPlace (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. More... | |
write (Ostream out, int indent_level) | |
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cacheRef () | |
bool | cacheUnref () |
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cacheRef () | |
Explicitly increments the cache reference count and the normal reference count simultaneously. More... | |
bool | cacheUnref () |
Explicitly decrements the cache reference count and the normal reference count simultaneously. More... | |
int | getCacheRefCount () |
Returns the current reference count. More... | |
bool | testRefCountIntegrity () |
Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
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object | __reduce__ () |
object | __reduce_persist__ (object pickler) |
VectorUchar | encodeToBamStream () |
Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a bytes object. More... | |
bool | encodeToBamStream (VectorUchar data, BamWriter writer) |
Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More... | |
fillin (DatagramIterator scan, BamReader manager) | |
This internal function is intended to be called by each class's make_from_bam() method to read in all of the relevant data from the BamFile for the new object. More... | |
UpdateSeq | getBamModified () |
Returns the current bam_modified counter. More... | |
markBamModified () | |
Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More... | |
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TypeHandle | getType () |
int | getTypeIndex () |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More... | |
bool | isExactType (TypeHandle handle) |
Returns true if the current object is the indicated type exactly. More... | |
bool | isOfType (TypeHandle handle) |
Returns true if the current object is or derives from the indicated type. More... | |
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int | getRefCount () |
Returns the current reference count. More... | |
ref () | |
Explicitly increments the reference count. More... | |
bool | testRefCountIntegrity () |
Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
bool | testRefCountNonzero () |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More... | |
bool | unref () |
Explicitly decrements the reference count. More... | |
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__init__ () | |
__init__ (const GeomEnums) | |
Static Public Member Functions | |
static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypedWritableReferenceCount | decodeFromBamStream (VectorUchar data, BamReader reader) |
Reads the bytes created by a previous call to encode_to_bam_stream(), and extracts and returns the single object on those bytes. More... | |
static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
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static TypeHandle | getClassType () |
Public Attributes | |
BoundingVolume::BoundsType | bounds_type |
Returns the bounding volume type set with set_bounds_type(). More... | |
int | geom_rendering |
Returns the set of GeomRendering bits that represent the rendering properties required to properly render this Geom. More... | |
UpdateSeq | modified |
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. More... | |
int | num_bytes |
Returns the number of bytes consumed by the geom and its primitives (but not including its vertex table). More... | |
GeomEnums::PrimitiveType | primitive_type |
Returns the fundamental primitive type that is common to all GeomPrimitives added within the Geom. More... | |
ConstPointerToGeomPrimitive | primitives [] |
Returns a const pointer to the ith GeomPrimitive object stored within the Geom. More... | |
GeomEnums::ShadeModel | shade_model |
Returns the shade model common to all of the individual GeomPrimitives that have been added to the geom. More... | |
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int | cache_ref_count |
Returns the current reference count. More... | |
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TypeHandle | type |
Returns the TypeHandle representing this object's type. More... | |
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int | ref_count |
The current reference count. More... | |
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.
__init__ | ( | const GeomVertexData | data | ) |
addPrimitive | ( | const GeomPrimitive | primitive | ) |
Inserts 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.
bool checkValid | ( | ) |
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.
bool checkValid | ( | const GeomVertexData | vertex_data | ) |
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.
clearBounds | ( | ) |
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.
clearCache | ( | ) |
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.
clearCacheStage | ( | 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.
clearPrimitives | ( | ) |
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.
bool copyPrimitivesFrom | ( | const Geom | other | ) |
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).
decomposeInPlace | ( | ) |
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.
doublesideInPlace | ( | ) |
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.
const GeomVertexData getAnimatedVertexData | ( | bool | force, |
Thread | current_thread | ||
) |
Returns a GeomVertexData that represents the results of computing the vertex animation on the CPU for this Geom's vertex data.
If there is no CPU-defined vertex animation on this object, this just returns the original object.
If there is vertex animation, but the VertexTransform values have not changed since last time, this may return the same pointer it returned previously. Even if the VertexTransform values have changed, it may still return the same pointer, but with its contents modified (this is preferred, since it allows the graphics backend to update vertex buffers optimally).
If force is false, this method may return immediately with stale data, if the vertex data is not completely resident. If force is true, this method will never return stale data, but may block until the data is available.
const BoundingVolume getBounds | ( | Thread | current_thread | ) |
Returns the bounding volume for the Geom.
BoundingVolume::BoundsType getBoundsType | ( | ) |
Returns the bounding volume type set with set_bounds_type().
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static |
int getGeomRendering | ( | ) |
Returns the set of GeomRendering bits that represent the rendering properties required to properly render this Geom.
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.
int getNestedVertices | ( | Thread | current_thread | ) |
Returns the number of vertices rendered by all primitives within the Geom.
int getNumBytes | ( | ) |
Returns the number of bytes consumed by the geom and its primitives (but not including its vertex table).
int getNumPrimitives | ( | ) |
Returns the number of GeomPrimitive objects stored within the Geom, each of which represents a number of primitives of a particular type.
const GeomPrimitive getPrimitive | ( | int | i | ) |
Returns a const pointer to the ith GeomPrimitive object stored within the Geom.
Use this call only to inspect the ith object; use modify_primitive() or set_primitive() if you want to modify it.
list getPrimitives | ( | ) |
GeomEnums::PrimitiveType getPrimitiveType | ( | ) |
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).
GeomEnums::ShadeModel getShadeModel | ( | ) |
Returns the shade model common to all of the individual GeomPrimitives that have been added to the geom.
GeomEnums::UsageHint getUsageHint | ( | ) |
Returns the minimum (i.e.
most dynamic) usage_hint among all of the individual GeomPrimitives that have been added to the geom.
const GeomVertexData getVertexData | ( | Thread | current_thread | ) |
Returns a const pointer to the GeomVertexData, for application code to directly examine (but not modify) the geom's underlying data.
insertPrimitive | ( | int | i, |
const GeomPrimitive | primitive | ||
) |
Inserts 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.
bool isEmpty | ( | ) |
Returns true if there appear to be no vertices to be rendered by this Geom, false if has some actual data.
bool isPrepared | ( | PreparedGraphicsObjects | prepared_objects | ) |
Returns true if the geom has already been prepared or enqueued for preparation on the indicated GSG, false otherwise.
Geom makeAdjacency | ( | ) |
Returns a new Geom with each primitive converted into a corresponding version with adjacency information.
makeAdjacencyInPlace | ( | ) |
Replaces the GeomPrimitives within this Geom with corresponding versions with adjacency information.
See GeomPrimitive::make_adjacency().
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.
Geom makeCopy | ( | ) |
makeLinesInPlace | ( | ) |
int makeNonindexed | ( | 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.
Geom makePatches | ( | ) |
Returns a new Geom with each primitive converted into a patch.
Calls decompose() first.
makePatchesInPlace | ( | ) |
Replaces the GeomPrimitives within this Geom with corresponding GeomPatches.
See GeomPrimitive::make_patches().
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.
Geom makePoints | ( | ) |
Returns a new Geom with points at all the vertices.
See GeomPrimitive::make_points().
makePointsInPlace | ( | ) |
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.
markBoundsStale | ( | ) |
Marks the bounding volume of the Geom as stale so that it should be recomputed.
Usually it is not necessary to call this explicitly.
GeomPrimitive modifyPrimitive | ( | int | i | ) |
Returns a modifiable pointer to the ith GeomPrimitive object stored within the Geom, so application code can directly manipulate the properties of this 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.
GeomVertexData modifyVertexData | ( | ) |
Returns a modifiable pointer to the GeomVertexData, so that application code may directly maniuplate the geom's underlying data.
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.
offsetVertices | ( | 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.
operator new | ( | int | size | ) |
output | ( | Ostream | out | ) |
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.
GeomContext prepareNow | ( | 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.
bool 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.
int releaseAll | ( | ) |
Frees the context allocated on all objects for which the geom has been declared.
Returns the number of contexts which have been freed.
removePrimitive | ( | 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.
bool requestResident | ( | ) |
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.
reverseInPlace | ( | ) |
Reverses all of the primitives within this Geom, leaving the results in place.
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.
rotateInPlace | ( | ) |
Rotates all of the primitives within this Geom, leaving the results in place.
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.
setBounds | ( | 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; 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.
setBoundsType | ( | BoundingVolume::BoundsType | bounds_type | ) |
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.)
setPrimitive | ( | 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.
setUsageHint | ( | GeomEnums::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.
setVertexData | ( | 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.
transformVertices | ( | 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.
Geom unify | ( | 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.
unifyInPlace | ( | 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.
write | ( | Ostream | out, |
int | indent_level | ||
) |
BoundingVolume::BoundsType bounds_type |
Returns the bounding volume type set with set_bounds_type().
int geom_rendering |
Returns the set of GeomRendering bits that represent the rendering properties required to properly render this Geom.
UpdateSeq modified |
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.
int num_bytes |
Returns the number of bytes consumed by the geom and its primitives (but not including its vertex table).
GeomEnums::PrimitiveType primitive_type |
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).
ConstPointerToGeomPrimitive primitives[] |
Returns a const pointer to the ith GeomPrimitive object stored within the Geom.
Use this call only to inspect the ith object; use modify_primitive() or set_primitive() if you want to modify it.
GeomEnums::ShadeModel shade_model |
Returns the shade model common to all of the individual GeomPrimitives that have been added to the geom.