This is the primary interface into all the egg data, and the root of the egg file structure. More...
#include "eggData.h"
Public Member Functions | |
| EggData (const EggData ©) | |
| int | collapse_equivalent_materials () |
| Removes duplicate references to the same material with the same properties. More... | |
| int | collapse_equivalent_textures () |
| Removes duplicate references to the same texture image with the same properties. More... | |
| virtual TypeHandle | force_init_type () |
| bool | get_auto_resolve_externals () const |
| CoordinateSystem | get_coordinate_system () const |
| const Filename & | get_egg_filename () const |
| time_t | get_egg_timestamp () const |
| virtual TypeHandle | get_type () const |
| bool | load_externals (const DSearchPath &searchpath=DSearchPath()) |
| Loads up all the egg files referenced by <File> entries within the egg structure, and inserts their contents in place of the <File> entries. More... | |
| bool | load_externals (const DSearchPath &searchpath, BamCacheRecord *record) |
| Loads up all the egg files referenced by <File> entries within the egg structure, and inserts their contents in place of the <File> entries. More... | |
| void | merge (EggData &other) |
| Appends the other egg structure to the end of this one. More... | |
| EggData & | operator= (const EggData ©) |
| bool | original_had_absolute_pathnames () const |
| Returns true if the data processed in the last call to read() contained absolute pathnames, or false if those pathnames were all relative. More... | |
| bool | read (Filename filename, std::string display_name=std::string()) |
| Opens the indicated filename and reads the egg data contents from it. More... | |
| bool | read (std::istream &in) |
| Parses the egg syntax contained in the indicated input stream. More... | |
| void | recompute_polygon_normals () |
| Recomputes all the polygon normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions. More... | |
| void | recompute_vertex_normals (double threshold) |
| Recomputes all the vertex normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions. More... | |
| void | set_auto_resolve_externals (bool resolve) |
| void | set_coordinate_system (CoordinateSystem coordsys) |
| void | set_egg_filename (const Filename &egg_filename) |
| void | set_egg_timestamp (time_t egg_timestamp) |
| void | strip_normals () |
| Removes all normals from primitives, and the vertices they reference, at this node and below. More... | |
| bool | write_egg (Filename filename) |
| The main interface for writing complete egg files. More... | |
| bool | write_egg (std::ostream &out) |
| The main interface for writing complete egg files. More... | |
 Public Member Functions inherited from EggGroupNode | |
| EggGroupNode (const std::string &name="") | |
| EggGroupNode (const EggGroupNode ©) | |
| EggNode * | add_child (EggNode *node) |
| Adds the indicated child to the group and returns it. More... | |
| void | apply_first_attribute (bool recurse) |
| Sets the first vertex of the triangle (or each component) to the primitive normal and/or color, if the primitive is flat-shaded. More... | |
| void | apply_last_attribute (bool recurse) |
| Sets the last vertex of the triangle (or each component) to the primitive normal and/or color, if the primitive is flat-shaded. More... | |
| iterator | begin () const |
| void | clear () |
| void | clear_connected_shading () |
| Resets the connected_shading information on all primitives at this node and below, so that it may be accurately rederived by the next call to get_connected_shading(). More... | |
| bool | empty () const |
| iterator | end () const |
| iterator | erase (iterator position) |
| iterator | erase (iterator first, iterator last) |
| EggNode * | find_child (const std::string &name) const |
| Returns the child of this node whose name is the indicated string, or NULL if there is no child of this node by that name. More... | |
| void | force_filenames (const Filename &directory) |
| Similar to resolve_filenames, but each non-absolute filename encountered is arbitrarily taken to be in the indicated directory, whether or not the so- named filename exists. More... | |
| void | get_connected_shading () |
| Queries the connected_shading information on all primitives at this node and below, to ensure that it has been completely filled in before we start mucking around with vertices. More... | |
| EggNode * | get_first_child () |
| Returns the first child in the group's list of children, or NULL if the list of children is empty. More... | |
| EggNode * | get_next_child () |
| Returns the next child in the group's list of children since the last call to get_first_child() or get_next_child(), or NULL if the last child has been returned. More... | |
| bool | has_absolute_pathnames () const |
| Returns true if any nodes at this level and below include a reference to a file via an absolute pathname, or false if all references are relative. More... | |
| virtual bool | has_normals () const |
| Returns true if any of the primitives (e.g. More... | |
| virtual bool | has_primitives () const |
| Returns true if there are any primitives (e.g. More... | |
| iterator | insert (iterator position, PT(EggNode) x) |
| virtual bool | joint_has_primitives () const |
| Returns true if there are any primitives (e.g. More... | |
| void | make_point_primitives () |
| Creates PointLight primitives to reference any otherwise unreferences vertices discovered in this group or below. More... | |
| void | mesh_triangles (int flags) |
| Combine triangles together into triangle strips, at this group and below. More... | |
| EggGroupNode & | operator= (const EggGroupNode ©) |
| void | post_apply_flat_attribute (bool recurse) |
| Intended as a followup to apply_last_attribute(), this also sets an attribute on the first vertices of the primitive, if they don't already have an attribute set, just so they end up with *something*. More... | |
| PT (EggNode) remove_child(EggNode *node) | |
| reverse_iterator | rbegin () const |
| void | rebuild_vertex_pools (EggVertexPools &vertex_pools, unsigned int max_vertices, bool recurse) |
| Copies vertices used by the primitives at this group node (and below, if recurse is true) into one or more new vertex pools, and updates the primitives to reference these pools. More... | |
| void | recompute_polygon_normals (CoordinateSystem cs=CS_default) |
| Recomputes all the polygon normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions. More... | |
| bool | recompute_tangent_binormal (const GlobPattern &uv_name) |
| This function recomputes the tangent and binormal for the named texture coordinate set for all vertices at this level and below. More... | |
| bool | recompute_tangent_binormal (const vector_string &names) |
| This function recomputes the tangent and binormal for the named texture coordinate sets. More... | |
| bool | recompute_tangent_binormal_auto () |
| This function recomputes the tangent and binormal for any texture coordinate set that affects a normal map. More... | |
| void | recompute_vertex_normals (double threshold, CoordinateSystem cs=CS_default) |
| Recomputes all the vertex normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions. More... | |
| int | remove_invalid_primitives (bool recurse) |
| Removes primitives at this level and below which appear to be degenerate; e.g. More... | |
| int | remove_unused_vertices (bool recurse) |
| Removes all vertices from VertexPools within this group or below that are not referenced by at least one primitive. More... | |
| int | rename_nodes (vector_string strip_prefix, bool recurse) |
| Rename by stripping out the prefix. More... | |
| reverse_iterator | rend () const |
| void | replace (iterator position, PT(EggNode) x) |
| Replaces the node at the indicated position with the indicated node. More... | |
| void | resolve_filenames (const DSearchPath &searchpath) |
| Walks the tree and attempts to resolve any filenames encountered. More... | |
| void | reverse_vertex_ordering () |
| Reverses the vertex ordering of all polygons defined at this node and below. More... | |
| size_type | size () const |
| void | steal_children (EggGroupNode &other) |
| Moves all the children from the other node to this one. More... | |
| void | strip_normals () |
| Removes all normals from primitives, and the vertices they reference, at this node and below. More... | |
| int | triangulate_polygons (int flags) |
| Replace all higher-order polygons at this point in the scene graph and below with triangles. More... | |
| void | unify_attributes (bool use_connected_shading, bool allow_per_primitive, bool recurse) |
| Applies per-vertex normal and color to all vertices, if they are in fact per-vertex (and different for each vertex), or moves them to the primitive if they are all the same. More... | |
| Public Member Functions inherited from EggNode | |
| EggNode (const std::string &name="") | |
| EggNode (const EggNode ©) | |
| void | apply_texmats () |
| Applies the texture matrices to the UV's of the vertices that reference them, and then removes the texture matrices from the textures themselves. More... | |
| virtual EggRenderMode * | determine_alpha_mode () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has an alpha_mode other than AM_unspecified. More... | |
| virtual EggRenderMode * | determine_bin () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a bin specified. More... | |
| virtual bool | determine_decal () |
| Walks back up the hierarchy, looking for an EggGroup at this level or above that has the "decal" flag set. More... | |
| virtual EggRenderMode * | determine_depth_offset () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_offset specified. More... | |
| virtual EggRenderMode * | determine_depth_test_mode () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_test_mode other than DTM_unspecified. More... | |
| virtual EggRenderMode * | determine_depth_write_mode () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a depth_write_mode other than DWM_unspecified. More... | |
| virtual EggRenderMode * | determine_draw_order () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a draw_order specified. More... | |
| virtual bool | determine_indexed () |
| Walks back up the hierarchy, looking for an EggGroup at this level or above that has the "indexed" scalar set. More... | |
| virtual EggRenderMode * | determine_visibility_mode () |
| Walks back up the hierarchy, looking for an EggGroup or EggPrimitive or some such object at this level or above this node that has a visibility_mode other than VM_unspecified. More... | |
| void | flatten_transforms () |
| Removes any transform and instance records from this node in the scene graph and below. More... | |
| int | get_depth () const |
| const LMatrix4d & | get_node_frame () const |
| Returns the coordinate frame of the node itself. More... | |
| const LMatrix4d & | get_node_frame_inv () const |
| Returns the inverse of the matrix returned by get_node_frame(). More... | |
| const LMatrix4d * | get_node_frame_inv_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_frame_inv() matrix. More... | |
| const LMatrix4d * | get_node_frame_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_frame() matrix. More... | |
| const LMatrix4d & | get_node_to_vertex () const |
| Returns the transformation matrix suitable for converting vertices in the coordinate space of the node to the appropriate coordinate space for storing in the egg file. More... | |
| const LMatrix4d * | get_node_to_vertex_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_node_to_vertex() matrix. More... | |
| EggGroupNode * | get_parent () const |
| const LMatrix4d & | get_vertex_frame () const |
| Returns the coordinate frame of the vertices referenced by primitives at or under this node. More... | |
| const LMatrix4d & | get_vertex_frame_inv () const |
| Returns the inverse of the matrix returned by get_vertex_frame(). More... | |
| const LMatrix4d * | get_vertex_frame_inv_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_frame_inv() matrix. More... | |
| const LMatrix4d * | get_vertex_frame_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_frame() matrix. More... | |
| const LMatrix4d & | get_vertex_to_node () const |
| Returns the transformation matrix suitable for converting the vertices as read from the egg file into the coordinate space of the node. More... | |
| const LMatrix4d * | get_vertex_to_node_ptr () const |
| Returns either a NULL pointer or a unique pointer shared by nodes with the same get_vertex_to_node() matrix. More... | |
| virtual bool | is_anim_matrix () const |
| Returns true if this node represents a table of animation transformation data, false otherwise. More... | |
| virtual bool | is_joint () const |
| Returns true if this particular node represents a <Joint> entry or not. More... | |
| bool | is_local_coord () const |
| Returns true if this node's vertices are not in the global coordinate space. More... | |
| bool | is_under_instance () const |
| Returns true if there is an <Instance> node somewhere in the egg tree at or above this node, false otherwise. More... | |
| bool | is_under_transform () const |
| Returns true if there is a <Transform> entry somewhere in the egg tree at or above this node, false otherwise. More... | |
| EggNode & | operator= (const EggNode ©) |
| bool | parse_egg (const std::string &egg_syntax) |
| Parses the egg syntax given in the indicate string as if it had been read from the egg file within this object's definition. More... | |
| int | rename_node (vector_string strip_prefix) |
| Rename by stripping out the prefix. More... | |
| void | test_under_integrity () const |
| void | transform (const LMatrix4d &mat) |
| Applies the indicated transformation to the node and all of its descendants. More... | |
| void | transform_vertices_only (const LMatrix4d &mat) |
| Applies the indicated transformation only to vertices that appear in global space within vertex pools at this node and below. More... | |
| Public Member Functions inherited from EggNamedObject | |
| EggNamedObject (const std::string &name="") | |
| EggNamedObject (const EggNamedObject ©) | |
| EggNamedObject & | operator= (const EggNamedObject ©) |
| void | output (std::ostream &out) const |
| void | write_header (std::ostream &out, int indent_level, const char *egg_keyword) const |
| Writes the first line of the egg object, e.g. More... | |
| Public Member Functions inherited from EggObject | |
| EggObject (const EggObject ©) | |
| virtual EggTransform * | as_transform () |
| Returns this object cross-cast to an EggTransform pointer, if it inherits from EggTransform, or NULL if it does not. More... | |
| void | clear_user_data () |
| Removes *all* user data pointers from the node. More... | |
| void | clear_user_data (TypeHandle type) |
| Removes the user data pointer of the indicated type. More... | |
| EggUserData * | get_user_data () const |
| Returns the user data pointer most recently stored on this object, or NULL if nothing was previously stored. More... | |
| EggUserData * | get_user_data (TypeHandle type) const |
| Returns the user data pointer of the indicated type, if it exists, or NULL if it does not. More... | |
| bool | has_user_data () const |
| Returns true if a generic user data pointer has recently been set and not yet cleared, false otherwise. More... | |
| bool | has_user_data (TypeHandle type) const |
| Returns true if the user data pointer of the indicated type has been set, false otherwise. More... | |
| EggObject & | operator= (const EggObject ©) |
| void | set_user_data (EggUserData *user_data) |
| Sets the user data associated with this object. More... | |
| Public Member Functions inherited from TypedReferenceCount | |
| TypedReferenceCount (const TypedReferenceCount ©) | |
| void | operator= (const TypedReferenceCount ©) |
| 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... | |
| Public Member Functions inherited from Namable | |
| Namable (const std::string &initial_name="") | |
| void | clear_name () |
| Resets the Namable's name to empty. More... | |
| const std::string & | get_name () const |
| bool | has_name () const |
| Returns true if the Namable has a nonempty name set, false if the name is empty. More... | |
| void | output (std::ostream &out) const |
| Outputs the Namable. More... | |
| void | set_name (const std::string &name) |
Static Public Member Functions | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| static bool | resolve_egg_filename (Filename &egg_filename, const DSearchPath &searchpath=DSearchPath()) |
| Looks for the indicated filename, first along the indicated searchpath, and then along the model_path. More... | |
| Static Public Member Functions inherited from EggGroupNode | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| static bool | is_right (const LVector2d &v1, const LVector2d &v2) |
| Returns true if the 2-d v1 is to the right of v2. More... | |
| Static Public Member Functions inherited from EggNode | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from EggNamedObject | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from EggObject | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| Static Public Member Functions inherited from TypedReferenceCount | |
| 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 () |
| Static Public Member Functions inherited from Namable | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
Public Attributes | |
| get_auto_resolve_externals | |
| Indicates whether the EggData object will automatically resolve any external references when read() is called. More... | |
| get_coordinate_system | |
| Returns the coordinate system in which the egg file is defined. More... | |
| get_egg_filename | |
| Returns the directory in which the egg file is considered to reside. More... | |
| get_egg_timestamp | |
| Returns the timestamp of the egg file on disk, at the time it was opened for reading, or 0 if this information is not available. More... | |
| set_auto_resolve_externals | |
| Indicates whether the EggData object will automatically resolve any external references when read() is called. More... | |
| set_coordinate_system | |
| Changes the coordinate system of the EggData. More... | |
| set_egg_filename | |
| Sets the filename–especially the directory part–in which the egg file is considered to reside. More... | |
| set_egg_timestamp | |
| Sets the timestamp of the egg file on disk, at the time it was opened for reading. More... | |
| Public Attributes inherited from EggGroupNode | |
| get_children | |
| Public Attributes inherited from EggNode | |
| get_depth | |
| Returns the number of nodes above this node in the egg hierarchy. More... | |
| get_parent | |
| Public Attributes inherited from TypedObject | |
| get_type | |
| Public Attributes inherited from ReferenceCount | |
| get_ref_count | |
| Returns the current reference count. More... | |
| Public Attributes inherited from Namable | |
| get_name | |
| set_name | |
Additional Inherited Members | |
| Public Types inherited from EggGroupNode | |
| typedef Children::const_iterator | const_iterator |
| typedef Children::const_pointer | const_pointer |
| typedef Children::const_reference | const_reference |
| typedef Children::const_reverse_iterator | const_reverse_iterator |
| typedef Children::difference_type | difference_type |
| typedef Children::const_iterator | iterator |
| typedef Children::const_pointer | pointer |
| typedef Children::const_reference | reference |
| typedef Children::const_reverse_iterator | reverse_iterator |
| typedef Children::size_type | size_type |
| enum | TriangulateFlags { T_polygon = 0x001, T_convex = 0x002, T_composite = 0x004, T_recurse = 0x008, T_flat_shaded = 0x010 } |
Detailed Description
This is the primary interface into all the egg data, and the root of the egg file structure.
An EggData structure corresponds exactly with an egg file on the disk.
The EggData class inherits from EggGroupNode its collection of children, which are accessed by using the EggData itself as an STL container with begin() and end() calls. The children of the EggData class are the toplevel nodes in the egg file.
Member Function Documentation
◆ collapse_equivalent_materials()
| int EggData::collapse_equivalent_materials | ( | ) |
Removes duplicate references to the same material with the same properties.
Considers two material references with identical properties, but different mref names, to be equivalent, and collapses them, choosing one mref name to keep arbitrarily. Returns the number of materials removed.
Definition at line 201 of file eggData.cxx.
References EggMaterialCollection::collapse_equivalent_materials(), and EggMaterialCollection::find_used_materials().
◆ collapse_equivalent_textures()
| int EggData::collapse_equivalent_textures | ( | ) |
Removes duplicate references to the same texture image with the same properties.
Considers two texture references with identical properties, but different tref names, to be equivalent, and collapses them, choosing one tref name to keep arbitrarily. Returns the number of textures removed.
Definition at line 187 of file eggData.cxx.
References EggTextureCollection::collapse_equivalent_textures(), and EggTextureCollection::find_used_textures().
◆ load_externals() [1/2]
| bool EggData::load_externals | ( | const DSearchPath & | searchpath = DSearchPath() | ) |
Loads up all the egg files referenced by <File> entries within the egg structure, and inserts their contents in place of the <File> entries.
Searches for files in the searchpath, if not found directly, and writes error messages to the indicated output stream. Returns true if all externals were loaded successfully, false otherwise.
Definition at line 162 of file eggData.cxx.
References get_coordinate_system.
◆ load_externals() [2/2]
| bool EggData::load_externals | ( | const DSearchPath & | searchpath, |
| BamCacheRecord * | record | ||
| ) |
Loads up all the egg files referenced by <File> entries within the egg structure, and inserts their contents in place of the <File> entries.
Searches for files in the searchpath, if not found directly, and writes error messages to the indicated output stream. Returns true if all externals were loaded successfully, false otherwise.
Definition at line 175 of file eggData.cxx.
◆ merge()
| void EggData::merge | ( | EggData & | other | ) |
Appends the other egg structure to the end of this one.
The other egg structure is invalidated.
Definition at line 139 of file eggData.cxx.
References get_coordinate_system.
◆ original_had_absolute_pathnames()
|
inline |
Returns true if the data processed in the last call to read() contained absolute pathnames, or false if those pathnames were all relative.
This method is necessary because if auto_resolve_externals() is in effect, it may modify the pathnames to be absolute whether or not they were as loaded from disk. This method can be used to query the state of the original egg file from disk.
◆ read() [1/2]
| bool EggData::read | ( | Filename | filename, |
| std::string | display_name = std::string() |
||
| ) |
Opens the indicated filename and reads the egg data contents from it.
Returns true if the file was successfully opened and read, false if there were some errors, in which case the data may be partially read.
error is the output stream to which to write error messages.
Definition at line 65 of file eggData.cxx.
References set_egg_filename, and Filename::set_text().
◆ read() [2/2]
| bool EggData::read | ( | std::istream & | in | ) |
Parses the egg syntax contained in the indicated input stream.
Returns true if the stream was a completely valid egg file, false if there were some errors, in which case the data may be partially read.
Before you call this routine, you should probably call set_egg_filename() to set the name of the egg file we're processing, if at all possible. If there is no such filename, you may set it to the empty string.
Definition at line 107 of file eggData.cxx.
◆ recompute_polygon_normals()
|
inline |
Recomputes all the polygon normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions.
Normals are removed from the vertices and defined only on polygons, giving the geometry a faceted appearance.
This function also removes degenerate polygons that do not have enough vertices to define a normal. It does not affect normals for other kinds of primitives like Nurbs or Points.
This function does not remove or adjust vertices in the vertex pool; it only adds new vertices with the normals removed. Thus, it is a good idea to call remove_unused_vertices() after calling this.
Definition at line 164 of file eggData.I.
References EggGroupNode::recompute_polygon_normals().
◆ recompute_vertex_normals()
|
inline |
Recomputes all the vertex normals for polygon geometry at this group node and below so that they accurately reflect the vertex positions.
A shared edge between two polygons (even in different groups) is considered smooth if the angle between the two edges is less than threshold degrees.
This function also removes degenerate polygons that do not have enough vertices to define a normal. It does not affect normals for other kinds of primitives like Nurbs or Points.
This function does not remove or adjust vertices in the vertex pool; it only adds new vertices with the correct normals. Thus, it is a good idea to call remove_unused_vertices() after calling this.
Definition at line 145 of file eggData.I.
References EggGroupNode::recompute_vertex_normals().
◆ resolve_egg_filename()
|
static |
Looks for the indicated filename, first along the indicated searchpath, and then along the model_path.
If found, updates the filename to the full path and returns true; otherwise, returns false.
Definition at line 44 of file eggData.cxx.
◆ strip_normals()
|
inline |
Removes all normals from primitives, and the vertices they reference, at this node and below.
This function does not remove or adjust vertices in the vertex pool; it only adds new vertices with the normal removed. Thus, it is a good idea to call remove_unused_vertices() after calling this.
Definition at line 177 of file eggData.I.
References EggGroupNode::strip_normals().
◆ write_egg() [1/2]
| bool EggData::write_egg | ( | Filename | filename | ) |
The main interface for writing complete egg files.
Definition at line 212 of file eggData.cxx.
◆ write_egg() [2/2]
| bool EggData::write_egg | ( | std::ostream & | out | ) |
The main interface for writing complete egg files.
Definition at line 231 of file eggData.cxx.
Member Data Documentation
◆ get_auto_resolve_externals
|
inline |
◆ get_coordinate_system
|
inline |
Returns the coordinate system in which the egg file is defined.
Definition at line 73 of file eggData.h.
Referenced by load_externals(), and merge().
◆ get_egg_filename
|
inline |
Returns the directory in which the egg file is considered to reside.
Definition at line 74 of file eggData.h.
Referenced by EggCharacterCollection::check_errors().
◆ get_egg_timestamp
|
inline |
◆ set_auto_resolve_externals
|
inline |
◆ set_coordinate_system
| void EggData::set_coordinate_system |
Changes the coordinate system of the EggData.
If the coordinate system was previously different, this may result in a conversion of the data.
Definition at line 73 of file eggData.h.
Referenced by SomethingToEggConverter::handle_external_reference().
◆ set_egg_filename
|
inline |
◆ set_egg_timestamp
|
inline |
The documentation for this class was generated from the following files:
- panda/src/egg/eggData.h
- panda/src/egg/eggData.cxx
- panda/src/egg/eggData.I
