A container for geometry primitives. More...
#include "geom.h"
Classes | |
| class | CacheEntry |
| class | CacheKey |
Public Types | |
| typedef pmap< const CacheKey *, PT(CacheEntry), IndirectLess< CacheKey > > | Cache |
 Public Types inherited from GeomEnums | |
| enum | AnimationType { AT_none, AT_panda, AT_hardware } |
| enum | Contents { C_other, C_point, C_clip_point, C_vector, C_texcoord, C_color, C_index, C_morph_delta, C_matrix, C_normal } |
| enum | GeomRendering { GR_indexed_point = 0x00001, GR_indexed_other = 0x10000, GR_indexed_bits = 0x10001, GR_point = 0x00002, GR_point_uniform_size = 0x00004, GR_per_point_size = 0x00008, GR_point_perspective = 0x00010, GR_point_aspect_ratio = 0x00020, GR_point_scale = 0x00040, GR_point_rotate = 0x00080, GR_point_sprite = 0x00100, GR_point_sprite_tex_matrix = 0x00200, GR_point_bits = 0x003fe, GR_triangle_strip = 0x00400, GR_triangle_fan = 0x00800, GR_line_strip = 0x01000, GR_composite_bits = 0x01c00, GR_strip_cut_index = 0x20000, GR_flat_first_vertex = 0x02000, GR_flat_last_vertex = 0x04000, GR_shade_model_bits = 0x06000, GR_render_mode_wireframe = 0x40000, GR_render_mode_point = 0x80000, GR_adjacency = 0x100000 } |
| enum | NumericType { NT_uint8, NT_uint16, NT_uint32, NT_packed_dcba, NT_packed_dabc, NT_float32, NT_float64, NT_stdfloat, NT_int8, NT_int16, NT_int32, NT_packed_ufloat } |
| enum | PrimitiveType { PT_none, PT_polygons, PT_lines, PT_points, PT_patches } |
| enum | ShadeModel { SM_uniform, SM_smooth, SM_flat_first_vertex, SM_flat_last_vertex } |
| enum | UsageHint { UH_client, UH_stream, UH_dynamic, UH_static, UH_unspecified } |
Public Member Functions | |
| Geom (const GeomVertexData *data) | |
| void | add_primitive (const GeomPrimitive *primitive) |
| Inserts a new GeomPrimitive structure to the Geom object. More... | |
| 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. More... | |
| 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. More... | |
| 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. More... | |
| bool | check_valid () const |
| Verifies that the all of the primitives within the geom reference vertices that actually exist within the geom's GeomVertexData. More... | |
| 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. More... | |
| 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. More... | |
| void | clear_cache () |
| void | clear_cache_stage (Thread *current_thread) |
| Removes all of the previously-cached results of munge_geom(), at the current pipeline stage and upstream. More... | |
| void | clear_primitives () |
| Removes all the primitives from the Geom object (but keeps the same table of vertices). More... | |
| virtual bool | copy_primitives_from (const Geom *other) |
| Copies the primitives from the indicated Geom into this one. More... | |
| CPT (GeomVertexData) get_vertex_data(Thread *current_thread | |
| CPT (GeomVertexData) get_animated_vertex_data(bool force | |
| CPT (GeomPrimitive) get_primitive(size_t 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. More... | |
| void | doubleside_in_place () |
| Doublesides all of the primitives within this Geom, leaving the results in place. More... | |
| bool | draw (GraphicsStateGuardianBase *gsg, 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). More... | |
| 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. More... | |
| virtual TypeHandle | force_init_type () |
| BoundingVolume::BoundsType | get_bounds_type () const |
| int | get_geom_rendering () const |
| UpdateSeq | get_modified (Thread *current_thread=Thread::get_current_thread()) const |
| int | get_nested_vertices (Thread *current_thread=Thread::get_current_thread()) const |
| int | get_num_bytes () const |
| size_t | get_num_primitives () const |
| PrimitiveType | get_primitive_type () const |
| ShadeModel | get_shade_model () const |
| virtual TypeHandle | get_type () const |
| UsageHint | get_usage_hint () const |
| Returns the minimum (i.e. More... | |
| void | insert_primitive (size_t i, const GeomPrimitive *primitive) |
| bool | is_empty () const |
| 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. More... | |
| void | make_adjacency_in_place () |
| Replaces the GeomPrimitives within this Geom with corresponding versions with adjacency information. More... | |
| virtual Geom * | make_copy () const |
| Returns a newly-allocated Geom that is a shallow copy of this one. More... | |
| void | make_lines_in_place () |
| Replaces the GeomPrimitives within this Geom with corresponding GeomLines, representing a wireframe of the primitives. More... | |
| int | make_nonindexed (bool composite_only) |
| Converts the geom from indexed to nonindexed by duplicating vertices as necessary. More... | |
| void | make_patches_in_place () |
| Replaces the GeomPrimitives within this Geom with corresponding GeomPatches. More... | |
| void | make_points_in_place () |
| Replaces the GeomPrimitives within this Geom with corresponding GeomPoints. More... | |
| void | mark_bounds_stale () const |
| 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. More... | |
| void | operator= (const Geom ©) |
| The copy assignment operator is not pipeline-safe. More... | |
| virtual void | output (std::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. More... | |
| GeomContext * | prepare_now (PreparedGraphicsObjects *prepared_objects, GraphicsStateGuardianBase *gsg) |
| Creates a context for the geom on the particular GSG, if it does not already exist. More... | |
| PT (GeomVertexData) modify_vertex_data() | |
| PT (GeomPrimitive) modify_primitive(size_t 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 | |
| PT (Geom) make_lines() const | |
| PT (Geom) make_patches() const | |
| PT (Geom) make_adjacency() const | |
| bool | release (PreparedGraphicsObjects *prepared_objects) |
| Frees the geom context only on the indicated object, if it exists there. More... | |
| int | release_all () |
| Frees the context allocated on all objects for which the geom has been declared. More... | |
| void | remove_primitive (size_t i) |
| bool | request_resident () const |
| Returns true if all the primitive arrays are currently resident in memory. More... | |
| void | reverse_in_place () |
| Reverses all of the primitives within this Geom, leaving the results in place. More... | |
| void | rotate_in_place () |
| Rotates all of the primitives within this Geom, leaving the results in place. More... | |
| void | set_bounds (const BoundingVolume *volume) |
| Resets the bounding volume so that it is the indicated volume. More... | |
| void | set_bounds_type (BoundingVolume::BoundsType bounds_type) |
| void | set_primitive (size_t i, const GeomPrimitive *primitive) |
| void | set_usage_hint (UsageHint usage_hint) |
| Changes the UsageHint hint for all of the primitives on this Geom to the same value. More... | |
| void | set_vertex_data (const GeomVertexData *data) |
| Replaces the Geom's underlying vertex data table with a completely new table. More... | |
| void | transform_vertices (const LMatrix4 &mat) |
| Applies the indicated transform to all of the vertices in the Geom. More... | |
| 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. More... | |
| virtual void | write (std::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. More... | |
| Public Member Functions inherited from CopyOnWriteObject | |
| CopyOnWriteObject (const CopyOnWriteObject ©) | |
| void | operator= (const CopyOnWriteObject ©) |
| Public Member Functions inherited from CachedTypedWritableReferenceCount | |
| void | cache_ref () const |
| Explicitly increments the cache reference count and the normal reference count simultaneously. More... | |
| void | cache_ref_only () const |
| Decrements the cache reference count without affecting the normal reference count. More... | |
| bool | cache_unref () const |
| Explicitly decrements the cache reference count and the normal reference count simultaneously. More... | |
| int | get_cache_ref_count () const |
| bool | test_ref_count_integrity () const |
| Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
| Public Member Functions inherited from TypedWritableReferenceCount | |
| TypedWritableReferenceCount (const TypedWritableReferenceCount ©) | |
| virtual ReferenceCount * | as_reference_count () |
| Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type. More... | |
| void | operator= (const TypedWritableReferenceCount ©) |
| Public Member Functions inherited from TypedWritable | |
| TypedWritable (const TypedWritable ©) | |
| virtual int | complete_pointers (TypedWritable **p_list, BamReader *manager) |
| Receives an array of pointers, one for each time manager->read_pointer() was called in fillin(). More... | |
| vector_uchar | encode_to_bam_stream () const |
| Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a bytes object. More... | |
| bool | encode_to_bam_stream (vector_uchar &data, BamWriter *writer=nullptr) const |
| Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More... | |
| UpdateSeq | get_bam_modified () const |
| Returns the current bam_modified counter. More... | |
| void | mark_bam_modified () |
| Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More... | |
| void | operator= (const TypedWritable ©) |
| virtual bool | require_fully_complete () const |
| Some objects require all of their nested pointers to have been completed before the objects themselves can be completed. More... | |
| 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. More... | |
| Public Member Functions inherited from TypedObject | |
| TypedObject (const TypedObject ©)=default | |
| TypedObject * | as_typed_object () |
| Returns the object, upcast (if necessary) to a TypedObject pointer. More... | |
| const TypedObject * | as_typed_object () const |
| Returns the object, upcast (if necessary) to a TypedObject pointer. More... | |
| int | get_best_parent_from_Set (const std::set< int > &) const |
| int | get_type_index () const |
| Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More... | |
| bool | is_exact_type (TypeHandle handle) const |
| Returns true if the current object is the indicated type exactly. More... | |
| bool | is_of_type (TypeHandle handle) const |
| Returns true if the current object is or derives from the indicated type. More... | |
| TypedObject & | operator= (const TypedObject ©)=default |
| Public Member Functions inherited from ReferenceCount | |
| int | get_ref_count () const |
| WeakReferenceList * | get_weak_list () const |
| Returns the WeakReferenceList associated with this ReferenceCount object. More... | |
| bool | has_weak_list () const |
| Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More... | |
| void | local_object () |
| This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More... | |
| void | ref () const |
| Explicitly increments the reference count. More... | |
| bool | ref_if_nonzero () const |
| Atomically increases the reference count of this object if it is not zero. More... | |
| bool | test_ref_count_integrity () const |
| Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
| bool | test_ref_count_nonzero () const |
| Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More... | |
| virtual bool | unref () const |
| Explicitly decrements the reference count. More... | |
| WeakReferenceList * | weak_ref () |
| Adds the indicated PointerToVoid as a weak reference to this object. More... | |
| void | weak_unref () |
| Removes the indicated PointerToVoid as a weak reference to this object. More... | |
Static Public Member Functions | |
| static TypeHandle | get_class_type () |
| static UpdateSeq | get_next_modified () |
| Returns a monotonically increasing sequence. More... | |
| static void | init_type () |
| static void | register_with_read_factory () |
| Tells the BamReader how to create objects of type Geom. More... | |
| Static Public Member Functions inherited from CopyOnWriteObject | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from CachedTypedWritableReferenceCount | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from TypedWritableReferenceCount | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| static | PT (TypedWritableReferenceCount) decode_from_bam_stream(vector_uchar data |
| Static Public Member Functions inherited from TypedWritable | |
| static bool | decode_raw_from_bam_stream (TypedWritable *&ptr, ReferenceCount *&ref_ptr, vector_uchar data, BamReader *reader=nullptr) |
| Reads the bytes created by a previous call to encode_to_bam_stream(), and extracts the single object on those bytes. More... | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from TypedObject | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| This function is declared non-inline to work around a compiler bug in g++ 2.96. More... | |
| Static Public Member Functions inherited from ReferenceCount | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
Public Attributes | |
| Thread *current_thread | const |
| bool preserve_order | const |
| get_bounds_type | |
| Returns the bounding volume type set with set_bounds_type(). More... | |
| get_geom_rendering | |
| Returns the set of GeomRendering bits that represent the rendering properties required to properly render this Geom. More... | |
| get_modified | |
| get_num_bytes | |
| Returns the number of bytes consumed by the geom and its primitives (but not including its vertex table). More... | |
| get_num_primitives | |
| get_primitive | |
| get_primitive_type | |
| Returns the fundamental primitive type that is common to all GeomPrimitives added within the Geom. More... | |
| get_shade_model | |
| Returns the shade model common to all of the individual GeomPrimitives that have been added to the geom. More... | |
| insert_primitive | |
| Inserts a new GeomPrimitive structure to the Geom object. More... | |
| remove_primitive | |
| Removes the ith primitive from the list. More... | |
| set_bounds_type | |
| set_primitive | |
| Public Attributes inherited from CachedTypedWritableReferenceCount | |
| get_cache_ref_count | |
| Returns the current reference count. More... | |
| Public Attributes inherited from TypedWritableReferenceCount | |
| static BamReader * | reader = nullptr) |
| Public Attributes inherited from TypedObject | |
| get_type | |
| Public Attributes inherited from ReferenceCount | |
| get_ref_count | |
| Returns the current reference count. More... | |
Friends | |
| class | CacheEntry |
| class | GeomContext |
| class | GeomMunger |
| class | GeomPipelineReader |
| class | PreparedGraphicsObjects |
Additional Inherited Members | |
| Static Public Attributes inherited from TypedWritable | |
| static TypedWritable *const | Null = nullptr |
Detailed Description
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.
Member Function Documentation
◆ add_primitive()
|
inline |
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.
Definition at line 116 of file geom.I.
References insert_primitive.
◆ calc_tight_bounds() [1/3]
|
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 324 of file geom.I.
Referenced by calc_tight_bounds().
◆ calc_tight_bounds() [2/3]
|
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 348 of file geom.I.
References calc_tight_bounds().
◆ calc_tight_bounds() [3/3]
|
inline |
Similar to calc_tight_bounds(), for UV coordinates or other named columns.
◆ check_valid() [1/2]
| 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 1061 of file geom.cxx.
References CPT().
◆ check_valid() [2/2]
| 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.
◆ 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.
◆ clear_cache_stage()
| 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 1186 of file geom.cxx.
Referenced by clear_primitives(), and PT().
◆ clear_primitives()
| 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 427 of file geom.cxx.
References clear_cache_stage().
◆ copy_primitives_from()
|
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).
Reimplemented in GeomTextGlyph.
Definition at line 941 of file geom.cxx.
References get_primitive_type, and get_shade_model.
Referenced by GeomTextGlyph::copy_primitives_from().
◆ decompose_in_place()
| void Geom::decompose_in_place | ( | ) |
◆ doubleside_in_place()
| void Geom::doubleside_in_place | ( | ) |
◆ draw()
| bool Geom::draw | ( | GraphicsStateGuardianBase * | gsg, |
| 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 1306 of file geom.cxx.
References GeomPipelineReader::draw().
◆ finalize()
|
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.
◆ 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 1324 of file geom.cxx.
Referenced by GeomPrimitive::clear_vertices(), GeomPrimitive::modify_ends(), PT(), GeomPrimitive::set_minmax(), GeomVertexData::set_transform_blend_table(), and GeomPrimitive::set_usage_hint().
◆ get_usage_hint()
| Geom::UsageHint Geom::get_usage_hint | ( | ) | const |
◆ is_prepared()
| 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 1216 of file geom.cxx.
References PreparedGraphicsObjects::is_geom_queued().
Referenced by PreparedGraphicsObjects::is_geom_prepared().
◆ make_adjacency_in_place()
| void Geom::make_adjacency_in_place | ( | ) |
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.
- Since
- 1.10.0
◆ make_copy()
|
virtual |
◆ make_lines_in_place()
| void Geom::make_lines_in_place | ( | ) |
◆ make_nonindexed()
| 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.
◆ make_patches_in_place()
| void Geom::make_patches_in_place | ( | ) |
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.
◆ make_points_in_place()
| 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.
◆ offset_vertices()
| 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.
◆ operator=()
| void Geom::operator= | ( | const Geom & | copy | ) |
◆ prepare()
| 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 1207 of file geom.cxx.
References PreparedGraphicsObjects::enqueue_geom().
◆ prepare_now()
| 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 1282 of file geom.cxx.
References PreparedGraphicsObjects::prepare_geom_now().
Referenced by PreparedGraphicsObjects::begin_frame().
◆ register_with_read_factory()
|
static |
Tells the BamReader how to create objects of type Geom.
Definition at line 1643 of file geom.cxx.
References BamReader::get_factory(), and Factory< Type >::register_factory().
◆ release()
| 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 1230 of file geom.cxx.
References PreparedGraphicsObjects::dequeue_geom(), and PreparedGraphicsObjects::release_geom().
◆ release_all()
| 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 1248 of file geom.cxx.
References PreparedGraphicsObjects::release_geom().
◆ request_resident()
| 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.
◆ reverse_in_place()
| void Geom::reverse_in_place | ( | ) |
◆ rotate_in_place()
| void Geom::rotate_in_place | ( | ) |
◆ set_bounds()
|
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.
◆ set_usage_hint()
| 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.
◆ set_vertex_data()
| 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 171 of file geom.cxx.
Referenced by PT(), and GeomTransformer::set_color().
◆ 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.
◆ unify_in_place()
| 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 613 of file geom.cxx.
References PT().
◆ write_datagram()
Writes the contents of this object to the datagram for shipping out to a Bam file.
Reimplemented from TypedWritable.
Definition at line 1652 of file geom.cxx.
References BamWriter::write_cdata(), and TypedWritable::write_datagram().
Member Data Documentation
◆ get_bounds_type
|
inline |
◆ get_geom_rendering
|
inline |
◆ get_num_bytes
| int Geom::get_num_bytes |
◆ get_primitive_type
|
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 74 of file geom.h.
Referenced by copy_primitives_from().
◆ get_shade_model
|
inline |
Returns the shade model common to all of the individual GeomPrimitives that have been added to the geom.
Definition at line 75 of file geom.h.
Referenced by copy_primitives_from().
◆ insert_primitive
| void Geom::insert_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.
Definition at line 101 of file geom.h.
Referenced by add_primitive().
◆ remove_primitive
| void Geom::remove_primitive |
The documentation for this class was generated from the following files:
