A node that can be positioned around in the scene graph to represent a point of view for rendering a scene. More...
#include "camera.h"
Inheritance diagram for Camera:
Public Member Functions | |
| Camera (const std::string &name, Lens *lens=new PerspectiveLens()) | |
| Camera (const Camera ©) | |
| int | cleanup_aux_scene_data (Thread *current_thread=Thread::get_current_thread()) |
| Walks through the list of currently-assigned AuxSceneData objects and releases any that are past their expiration times. More... | |
| bool | clear_aux_scene_data (const NodePath &node_path) |
| void | clear_tag_state (const std::string &tag_state) |
| void | clear_tag_states () |
| Removes all associations established by previous calls to set_tag_state(). More... | |
| virtual int | complete_pointers (TypedWritable **plist, BamReader *manager) |
| Receives an array of pointers, one for each time manager->read_pointer() was called in fillin(). More... | |
| CPT (RenderState) get_initial_state() const | |
| virtual TypeHandle | force_init_type () |
| AuxSceneData * | get_aux_scene_data (const NodePath &node_path) const |
| DrawMask | get_camera_mask () const |
| BoundingVolume * | get_cull_bounds () const |
| const NodePath & | get_cull_center () const |
| DisplayRegion * | get_display_region (size_t n) const |
| const NodePath & | get_lod_center () const |
| PN_stdfloat | get_lod_scale () const |
| size_t | get_num_display_regions () const |
| const NodePath & | get_scene () const |
| const std::string & | get_tag_state_key () const |
| virtual TypeHandle | get_type () const |
| bool | has_tag_state (const std::string &tag_state) const |
| bool | is_active () const |
| void | list_aux_scene_data (std::ostream &out) const |
| Outputs all of the NodePaths and AuxSceneDatas in use. More... | |
| virtual PandaNode * | make_copy () const |
| Returns a newly-allocated Node that is a shallow copy of this one. More... | |
| virtual bool | safe_to_flatten () const |
| Returns true if it is generally safe to flatten out this particular kind of Node by duplicating instances, false otherwise (for instance, a Camera cannot be safely flattened, because the Camera pointer itself is meaningful). More... | |
| virtual bool | safe_to_transform () const |
| Returns true if it is generally safe to transform this particular kind of Node by calling the xform() method, false otherwise. More... | |
| void | set_active (bool active) |
| void | set_aux_scene_data (const NodePath &node_path, AuxSceneData *data) |
| void | set_camera_mask (DrawMask mask) |
| void | set_cull_bounds (BoundingVolume *cull_bounds) |
| void | set_cull_center (const NodePath &cull_center) |
| void | set_initial_state (const RenderState *state) |
| void | set_lod_center (const NodePath &lod_center) |
| void | set_lod_scale (PN_stdfloat value) |
| void | set_scene (const NodePath &scene) |
| void | set_tag_state (const std::string &tag_state, const RenderState *state) |
| void | set_tag_state_key (const std::string &tag_state_key) |
| 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 LensNode | |
| LensNode (const std::string &name, Lens *lens=nullptr) | |
| bool | activate_lens (int index) |
| An alternate way to call set_lens_active(index, true). More... | |
| void | copy_lens (const Lens &lens) |
| Sets up the LensNode using a copy of the indicated Lens. More... | |
| void | copy_lens (int index, const Lens &lens) |
| Copies the indicated lens into the specified slot. More... | |
| bool | deactivate_lens (int index) |
| An alternate way to call set_lens_active(index, false). More... | |
| Lens * | get_lens (int index=0) const |
| Returns a pointer to the particular Lens associated with this LensNode, or NULL if there is not yet a Lens associated. More... | |
| bool | get_lens_active (int index) const |
| Returns the active flag for the nth lens. More... | |
| void | hide_frustum () |
| Disables the drawing of the lens's frustum to aid in visualization. More... | |
| bool | is_in_view (const LPoint3 &pos) |
| Returns true if the given point is within the bounds of the lens of the LensNode (i.e. More... | |
| bool | is_in_view (int index, const LPoint3 &pos) |
| Returns true if the given point is within the bounds of the lens of the LensNode (i.e. More... | |
| virtual void | output (std::ostream &out) const |
| void | set_lens (Lens *lens) |
| Sets up the LensNode using this particular Lens pointer. More... | |
| void | set_lens (int index, Lens *lens) |
| Sets the indicated lens. More... | |
| bool | set_lens_active (int index, bool active) |
| Sets the active flag for the nth lens. More... | |
| void | show_frustum () |
| Enables the drawing of the lens's frustum to aid in visualization. More... | |
| virtual void | write (std::ostream &out, int indent_level=0) const |
| virtual void | xform (const LMatrix4 &mat) |
| Transforms the contents of this PandaNode by the indicated matrix, if it means anything to do so. More... | |
| Public Member Functions inherited from PandaNode | |
| PandaNode (const std::string &name) | |
| void | add_child (PandaNode *child_node, int sort=0, Thread *current_thread=Thread::get_current_thread()) |
| virtual void | add_for_draw (CullTraverser *trav, CullTraverserData &data) |
| Adds the node's contents to the CullResult we are building up during the cull traversal, so that it will be drawn at render time. More... | |
| void | add_stashed (PandaNode *child_node, int sort=0, Thread *current_thread=Thread::get_current_thread()) |
| Adds a new child to the node, directly as a stashed child. More... | |
| void | adjust_draw_mask (DrawMask show_mask, DrawMask hide_mask, DrawMask clear_mask) |
| Adjusts the hide/show bits of this particular node. More... | |
| virtual void | apply_attribs_to_vertices (const AccumulatedAttribs &attribs, int attrib_types, GeomTransformer &transformer) |
| Applies whatever attributes are specified in the AccumulatedAttribs object (and by the attrib_types bitmask) to the vertices on this node, if appropriate. More... | |
| virtual Light * | as_light () |
| Cross-casts the node to a Light pointer, if it is one of the four kinds of Light nodes, or returns NULL if it is not. More... | |
| void | clear_attrib (TypeHandle type) |
| void | clear_attrib (int slot) |
| Removes the render attribute of the given type from this node. More... | |
| void | clear_bounds () |
| Reverses the effect of a previous call to set_bounds(), and allows the node's bounding volume to be automatically computed once more based on the contents of the node. More... | |
| void | clear_effect (TypeHandle type) |
| Removes the render effect of the given type from this node. More... | |
| void | clear_effects (Thread *current_thread=Thread::get_current_thread()) |
| void | clear_state (Thread *current_thread=Thread::get_current_thread()) |
| void | clear_tag (const std::string &key, Thread *current_thread=Thread::get_current_thread()) |
| void | clear_transform (Thread *current_thread=Thread::get_current_thread()) |
| void | clear_unexpected_change (unsigned int flags) |
| Sets one or more of the PandaNode::UnexpectedChange bits off, indicating that the corresponding property may once again change on this node. More... | |
| virtual PandaNode * | combine_with (PandaNode *other) |
| Collapses this PandaNode with the other PandaNode, if possible, and returns a pointer to the combined PandaNode, or NULL if the two PandaNodes cannot safely be combined. More... | |
| int | compare_tags (const PandaNode *other) const |
| Returns a number less than 0, 0, or greater than 0, to indicate the similarity of tags between this node and the other one. More... | |
| void | copy_all_properties (PandaNode *other) |
| Copies the TransformState, RenderState, RenderEffects, tags, Python tags, and the show/hide state from the other node onto this one. More... | |
| void | copy_children (PandaNode *other, Thread *current_thread=Thread::get_current_thread()) |
| Makes another instance of all the children of the other node, copying them to this node. More... | |
| void | copy_tags (PandaNode *other) |
| Copies all of the tags stored on the other node onto this node. More... | |
| int | count_num_descendants () const |
| virtual | CPT (TransformState) calc_tight_bounds(LPoint3 &min_point |
| CPT (RenderAttrib) get_attrib(TypeHandle type) const | |
| CPT (RenderAttrib) get_attrib(int slot) const | |
| CPT (RenderEffect) get_effect(TypeHandle type) const | |
| CPT (RenderState) get_state(Thread *current_thread | |
| CPT (RenderEffects) get_effects(Thread *current_thread | |
| CPT (TransformState) get_transform(Thread *current_thread | |
| CPT (TransformState) get_prev_transform(Thread *current_thread | |
| CPT (RenderAttrib) get_off_clip_planes(Thread *current_thread | |
| CPT (BoundingVolume) get_bounds(Thread *current_thread | |
| CPT (BoundingVolume) get_bounds(UpdateSeq &seq | |
| CPT (BoundingVolume) get_internal_bounds(Thread *current_thread | |
| virtual bool | cull_callback (CullTraverser *trav, CullTraverserData &data) |
| virtual PandaNode * | dupe_for_flatten () const |
| This is similar to make_copy(), but it makes a copy for the specific purpose of flatten. More... | |
| int | find_child (PandaNode *node, Thread *current_thread=Thread::get_current_thread()) const |
| Returns the index of the indicated child node, if it is a child, or -1 if it is not. More... | |
| int | find_parent (PandaNode *node, Thread *current_thread=Thread::get_current_thread()) const |
| Returns the index of the indicated parent node, if it is a parent, or -1 if it is not. More... | |
| int | find_stashed (PandaNode *node, Thread *current_thread=Thread::get_current_thread()) const |
| Returns the index of the indicated stashed node, if it is a stashed child, or -1 if it is not. More... | |
| BoundingVolume::BoundsType | get_bounds_type () const |
| PandaNode * | get_child (int n, Thread *current_thread=Thread::get_current_thread()) const |
| int | get_child_sort (int n, Thread *current_thread=Thread::get_current_thread()) const |
| Returns the sort index of the nth child node of this node (that is, the number that was passed to add_child()). More... | |
| Children | get_children (Thread *current_thread=Thread::get_current_thread()) const |
| DrawMask | get_draw_control_mask () const |
| DrawMask | get_draw_show_mask () const |
| int | get_fancy_bits (Thread *current_thread=Thread::get_current_thread()) const |
| Returns the union of all of the enum FancyBits values corresponding to the various "fancy" attributes that are set on the node. More... | |
| virtual int | get_first_visible_child () const |
| Returns the index number of the first visible child of this node, or a number >= get_num_children() if there are no visible children of this node. More... | |
| int | get_internal_vertices (Thread *current_thread=Thread::get_current_thread()) const |
| CollideMask | get_into_collide_mask () const |
| virtual CollideMask | get_legal_collide_mask () const |
| int | get_nested_vertices (Thread *current_thread=Thread::get_current_thread()) const |
| CollideMask | get_net_collide_mask (Thread *current_thread=Thread::get_current_thread()) const |
| Returns the union of all into_collide_mask() values set at CollisionNodes at this level and below. More... | |
| DrawMask | get_net_draw_control_mask () const |
| Returns the set of bits in get_net_draw_show_mask() that have been explicitly set via adjust_draw_mask(), rather than implicitly inherited. More... | |
| DrawMask | get_net_draw_show_mask () const |
| Returns the union of all draw_show_mask values–of renderable nodes only– at this level and below. More... | |
| virtual int | get_next_visible_child (int n) const |
| Returns the index number of the next visible child of this node following the indicated child, or a number >= get_num_children() if there are no more visible children of this node. More... | |
| int | get_num_children (Thread *current_thread=Thread::get_current_thread()) const |
| int | get_num_parents (Thread *current_thread=Thread::get_current_thread()) const |
| int | get_num_stashed (Thread *current_thread=Thread::get_current_thread()) const |
| size_t | get_num_tags () const |
| PandaNode * | get_parent (int n, Thread *current_thread=Thread::get_current_thread()) const |
| Parents | get_parents (Thread *current_thread=Thread::get_current_thread()) const |
| PandaNode * | get_stashed (int n, Thread *current_thread=Thread::get_current_thread()) const |
| Stashed | get_stashed (Thread *current_thread=Thread::get_current_thread()) const |
| int | get_stashed_sort (int n, Thread *current_thread=Thread::get_current_thread()) const |
| Returns the sort index of the nth stashed node of this node (that is, the number that was passed to add_child()). More... | |
| std::string | get_tag (const std::string &key, Thread *current_thread=Thread::get_current_thread()) const |
| std::string | get_tag_key (size_t i) const |
| void | get_tag_keys (vector_string &keys) const |
| Fills the given vector up with the list of tags on this PandaNode. More... | |
| unsigned int | get_unexpected_change (unsigned int flags) const |
| Returns nonzero if any of the bits in the input parameter are set on this node, or zero if none of them are set. More... | |
| virtual int | get_unsafe_to_apply_attribs () const |
| Returns the union of all attributes from SceneGraphReducer::AttribTypes that may not safely be applied to the vertices of this node. More... | |
| virtual int | get_visible_child () const |
| Returns the index number of the currently visible child of this node. More... | |
| bool | has_attrib (TypeHandle type) const |
| bool | has_attrib (int slot) const |
| bool | has_dirty_prev_transform () const |
| bool | has_effect (TypeHandle type) const |
| virtual bool | has_selective_visibility () const |
| Should be overridden by derived classes to return true if this kind of node has some restrictions on the set of children that should be rendered. More... | |
| virtual bool | has_single_child_visibility () const |
| Should be overridden by derived classes to return true if this kind of node has the special property that just one of its children is visible at any given time, and furthermore that the particular visible child can be determined without reference to any external information (such as a camera). More... | |
| bool | has_tag (const std::string &key, Thread *current_thread=Thread::get_current_thread()) const |
| bool | has_tags () const |
| virtual bool | is_ambient_light () const |
| Returns true if this is an AmbientLight, false if it is not a light, or it is some other kind of light. More... | |
| bool | is_bounds_stale () const |
| virtual bool | is_collision_node () const |
| A simple downcast check. More... | |
| bool | is_final (Thread *current_thread=Thread::get_current_thread()) const |
| virtual bool | is_geom_node () const |
| A simple downcast check. More... | |
| virtual bool | is_lod_node () const |
| A simple downcast check. More... | |
| bool | is_overall_hidden () const |
| virtual bool | is_renderable () const |
| Returns true if there is some value to visiting this particular node during the cull traversal for any camera, false otherwise. More... | |
| bool | is_scene_root () const |
| Returns true if this particular node is known to be the render root of some active DisplayRegion associated with the global GraphicsEngine, false otherwise. More... | |
| bool | is_under_scene_root () const |
| Returns true if this particular node is in a live scene graph: that is, it is a child or descendent of a node that is itself a scene root. More... | |
| void | list_tags (std::ostream &out, const std::string &separator="\n") const |
| Writes a list of all the tag keys assigned to the node to the indicated stream. More... | |
| void | ls (std::ostream &out, int indent_level) const |
| void | mark_bounds_stale (Thread *current_thread=Thread::get_current_thread()) const |
| void | mark_internal_bounds_stale (Thread *current_thread=Thread::get_current_thread()) |
| void | prepare_scene (GraphicsStateGuardianBase *gsg, const RenderState *node_state) |
| virtual bool | preserve_name () const |
| Returns true if the node's name has extrinsic meaning and must be preserved across a flatten operation, false otherwise. More... | |
| PT (PandaNode) copy_subgraph(Thread *current_thread | |
| virtual void | r_prepare_scene (GraphicsStateGuardianBase *gsg, const RenderState *node_state, GeomTransformer &transformer, Thread *current_thread) |
| The recursive implementation of prepare_scene(). More... | |
| void | remove_all_children (Thread *current_thread=Thread::get_current_thread()) |
| Removes all the children from the node at once, including stashed children. More... | |
| void | remove_child (int child_index, Thread *current_thread=Thread::get_current_thread()) |
| Removes the nth child from the node. More... | |
| bool | remove_child (PandaNode *child_node, Thread *current_thread=Thread::get_current_thread()) |
| Removes the indicated child from the node. More... | |
| void | remove_stashed (int child_index, Thread *current_thread=Thread::get_current_thread()) |
| Removes the nth stashed child from the node. More... | |
| bool | replace_child (PandaNode *orig_child, PandaNode *new_child, Thread *current_thread=Thread::get_current_thread()) |
| Searches for the orig_child node in the node's list of children, and replaces it with the new_child instead. More... | |
| void | replace_node (PandaNode *other) |
| Inserts this node into the scene graph in place of the other one, and removes the other node. More... | |
| void | reset_prev_transform (Thread *current_thread=Thread::get_current_thread()) |
| Resets the transform that represents this node's "previous" position to the same as the current transform. More... | |
| virtual bool | safe_to_combine () const |
| Returns true if it is generally safe to combine this particular kind of PandaNode with other kinds of PandaNodes of compatible type, adding children or whatever. More... | |
| virtual bool | safe_to_combine_children () const |
| Returns true if it is generally safe to combine the children of this PandaNode with each other. More... | |
| virtual bool | safe_to_flatten_below () const |
| Returns true if a flatten operation may safely continue past this node, or false if nodes below this node may not be molested. More... | |
| virtual bool | safe_to_modify_transform () const |
| Returns true if it is safe to automatically adjust the transform on this kind of node. More... | |
| void | set_attrib (const RenderAttrib *attrib, int override=0) |
| Adds the indicated render attribute to the scene graph on this node. More... | |
| void | set_bound (const BoundingVolume *volume) |
| Deprecated. 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) |
| Specifies the desired type of bounding volume that will be created for this node. More... | |
| void | set_effect (const RenderEffect *effect) |
| Adds the indicated render effect to the scene graph on this node. More... | |
| void | set_effects (const RenderEffects *effects, Thread *current_thread=Thread::get_current_thread()) |
| void | set_final (bool flag) |
| void | set_into_collide_mask (CollideMask mask) |
| void | set_overall_hidden (bool overall_hidden) |
| void | set_prev_transform (const TransformState *transform, Thread *current_thread=Thread::get_current_thread()) |
| Sets the transform that represents this node's "previous" position, one frame ago, for the purposes of detecting motion for accurate collision calculations. More... | |
| void | set_state (const RenderState *state, Thread *current_thread=Thread::get_current_thread()) |
| void | set_tag (const std::string &key, const std::string &value, Thread *current_thread=Thread::get_current_thread()) |
| void | set_transform (const TransformState *transform, Thread *current_thread=Thread::get_current_thread()) |
| void | set_unexpected_change (unsigned int flags) |
| Sets one or more of the PandaNode::UnexpectedChange bits on, indicating that the corresponding property should not change again on this node. More... | |
| bool | stash_child (PandaNode *child_node, Thread *current_thread=Thread::get_current_thread()) |
| Stashes the indicated child node. More... | |
| void | stash_child (int child_index, Thread *current_thread=Thread::get_current_thread()) |
| Stashes the indicated child node. More... | |
| void | steal_children (PandaNode *other, Thread *current_thread=Thread::get_current_thread()) |
| Moves all the children from the other node onto this node. More... | |
| bool | unstash_child (PandaNode *child_node, Thread *current_thread=Thread::get_current_thread()) |
| Returns the indicated stashed node to normal child status. More... | |
| void | unstash_child (int stashed_index, Thread *current_thread=Thread::get_current_thread()) |
| Returns the indicated stashed node to normal child status. 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... | |
| void | write_recorder (BamWriter *manager, Datagram &dg) |
| This method is provided for the benefit of classes (like MouseRecorder) that inherit from PandaMode and also RecorderBase. 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 ©) | |
| 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... | |
| 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... | |
| 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... | |
| 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 void | register_with_read_factory () |
| Tells the BamReader how to create objects of type Camera. More... | |
| Static Public Member Functions inherited from LensNode | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
| static void | register_with_read_factory () |
| Tells the BamReader how to create objects of type LensNode. More... | |
| Static Public Member Functions inherited from PandaNode | |
| static DrawMask | get_all_camera_mask () |
| static TypeHandle | get_class_type () |
| static DrawMask | get_overall_bit () |
| static void | init_type () |
| static | PT (PandaNode) decode_from_bam_stream(vector_uchar data |
| static void | register_with_read_factory () |
| Tells the BamReader how to create objects of type PandaNode. More... | |
| static void | reset_all_prev_transform (Thread *current_thread=Thread::get_current_thread()) |
| Visits all nodes in the world with the _dirty_prev_transform flag–that is, all nodes whose _prev_transform is different from the _transform in pipeline stage 0–and resets the _prev_transform to be the same as _transform. More... | |
| static void | set_scene_root_func (SceneRootFunc *func) |
| This is used by the GraphicsEngine to hook in a pointer to the scene_root_func(), the function to determine whether the node is an active scene root. More... | |
| 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 () |
| Static Public Member Functions inherited from Namable | |
| static TypeHandle | get_class_type () |
| static void | init_type () |
Public Attributes | |
| clear_aux_scene_data | |
| Removes the AuxSceneData associated with the indicated NodePath. More... | |
| CPT(RenderState) get_tag_state(const std | clear_tag_state |
| Removes the association established by a previous call to set_tag_state(). More... | |
| get_aux_scene_data | |
| Returns the AuxSceneData associated with the indicated NodePath, or NULL if nothing is associated. More... | |
| get_camera_mask | |
| Returns the set of bits that represent the subset of the scene graph the camera will render. More... | |
| get_cull_bounds | |
| Returns the custom cull volume that was set by set_cull_bounds(), if any, or NULL if no custom cull volume was set. More... | |
| get_cull_center | |
| Returns the point from which the culling operations will be performed, if it was set by set_cull_center(), or the empty NodePath otherwise. More... | |
| get_display_region | |
| Returns the nth display region associated with the camera. More... | |
| get_initial_state | |
| get_lod_center | |
| Returns the point from which the LOD distances will be measured, if it was set by set_lod_center(), or the empty NodePath otherwise. More... | |
| get_lod_scale | |
| Returns the multiplier for LOD distances. More... | |
| get_num_display_regions | |
| Returns the number of display regions associated with the camera. More... | |
| get_scene | |
| Returns the scene that will be rendered by the camera. More... | |
| CPT(RenderState) get_tag_state(const std | get_tag_state |
| get_tag_state_key | |
| Returns the tag key as set by a previous call to set_tag_state_key(). More... | |
| CPT(RenderState) get_tag_state(const std | has_tag_state |
| Returns true if set_tag_state() has previously been called with the indicated tag state, false otherwise. More... | |
| is_active | |
| Returns the current setting of the active flag on the camera. More... | |
| set_active | |
| Sets the active flag on the camera. More... | |
| set_aux_scene_data | |
| set_camera_mask | |
| Changes the set of bits that represent the subset of the scene graph the camera will render. More... | |
| set_cull_bounds | |
| Specifies the bounding volume that should be used to perform culling from this camera. More... | |
| set_cull_center | |
| Specifies the point from which the culling operations are performed. More... | |
| set_initial_state | |
| Sets the initial state which is applied to all nodes in the scene, as if it were set at the top of the scene graph. More... | |
| set_lod_center | |
| Specifies the point from which the LOD distances are measured. More... | |
| set_lod_scale | |
| Sets the multiplier for LOD distances. More... | |
| set_scene | |
| Sets the scene that will be rendered by the camera. More... | |
| CPT(RenderState) get_tag_state(const std | set_tag_state |
| Associates a particular state transition with the indicated tag value. More... | |
| set_tag_state_key | |
| Public Attributes inherited from PandaNode | |
| clear_tag | |
| Removes the value defined for this key on this particular node. More... | |
| virtual LPoint3 bool const TransformState Thread * | current_thread = Thread::get_current_thread()) const |
| Thread * | current_thread = Thread::get_current_thread()) const |
| virtual LPoint3 bool & | found_any |
| get_all_camera_mask | |
| Returns a DrawMask that is appropriate for rendering to all cameras. More... | |
| get_bounds_type | |
| Returns the bounding volume type set with set_bounds_type(). More... | |
| get_child | |
| Returns the nth child node of this node. More... | |
| get_children | |
| Returns an object that can be used to walk through the list of children of the node. More... | |
| get_draw_control_mask | |
| Returns the set of bits in draw_show_mask that are considered meaningful. More... | |
| get_draw_show_mask | |
| Returns the hide/show bits of this particular node. More... | |
| get_effects | |
| get_internal_bounds | |
| get_internal_vertices | |
| get_into_collide_mask | |
| Returns the "into" collide mask for this node. More... | |
| get_legal_collide_mask | |
| Returns the subset of CollideMask bits that may be set for this particular type of PandaNode. More... | |
| get_nested_vertices | |
| get_num_children | |
| Returns the number of child nodes this node has. More... | |
| get_num_parents | |
| Returns the number of parent nodes this node has. More... | |
| get_num_stashed | |
| Returns the number of stashed nodes this node has. More... | |
| get_num_tags | |
| get_overall_bit | |
| get_parent | |
| Returns the nth parent node of this node. More... | |
| get_parents | |
| Returns an object that can be used to walk through the list of parents of the node, similar to get_children() and get_stashed(). More... | |
| get_prev_transform | |
| get_python_tags | |
| get_stashed | |
| Returns the nth stashed child of this node. More... | |
| get_state | |
| get_tag | |
| get_tag_key | |
| get_transform | |
| has_tag | |
| is_bounds_stale | |
| is_final | |
| Returns the current state of the "final" flag. More... | |
| is_overall_hidden | |
| Returns true if the node has been hidden to all cameras by clearing its overall bit. More... | |
| virtual LPoint3 & | max_point |
| static BamReader * | reader = nullptr) |
| set_effects | |
| Sets the complete RenderEffects that will be applied this node. More... | |
| set_final | |
| set_into_collide_mask | |
| Sets the "into" CollideMask. More... | |
| set_overall_hidden | |
| Sets or clears the hidden flag. More... | |
| set_state | |
| Sets the complete RenderState that will be applied to all nodes at this level and below. More... | |
| set_tag | |
| Associates a user-defined value with a user-defined key which is stored on the node. More... | |
| set_transform | |
| Sets the transform that will be applied to this node and below. More... | |
| virtual LPoint3 bool const TransformState * | transform |
| 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... | |
| Public Attributes inherited from Namable | |
| get_name | |
| set_name | |
Friends | |
| class | DisplayRegion |
Additional Inherited Members | |
| Public Types inherited from PandaNode | |
| enum | FancyBits { FB_transform = 0x0001, FB_state = 0x0002, FB_effects = 0x0004, FB_tag = 0x0010, FB_draw_mask = 0x0020, FB_cull_callback = 0x0040 } |
| typedef bool | SceneRootFunc(const PandaNode *) |
| enum | UnexpectedChange { UC_parents = 0x001, UC_children = 0x002, UC_transform = 0x004, UC_state = 0x008, UC_draw_mask = 0x010 } |
| Static Public Attributes inherited from TypedWritable | |
| static TypedWritable *const | Null = nullptr |
Detailed Description
A node that can be positioned around in the scene graph to represent a point of view for rendering a scene.
Member Function Documentation
◆ cleanup_aux_scene_data()
| int Camera::cleanup_aux_scene_data | ( | Thread * | current_thread = Thread::get_current_thread() | ) |
Walks through the list of currently-assigned AuxSceneData objects and releases any that are past their expiration times.
Returns the number of elements released.
Definition at line 214 of file camera.cxx.
References ClockObject::get_frame_time, and ClockObject::get_global_clock().
◆ clear_tag_states()
| void Camera::clear_tag_states | ( | ) |
Removes all associations established by previous calls to set_tag_state().
Definition at line 123 of file camera.cxx.
◆ complete_pointers()
|
virtual |
Receives an array of pointers, one for each time manager->read_pointer() was called in fillin().
Returns the number of pointers processed.
Reimplemented from LensNode.
Definition at line 288 of file camera.cxx.
◆ list_aux_scene_data()
| void Camera::list_aux_scene_data | ( | std::ostream & | out | ) | const |
Outputs all of the NodePaths and AuxSceneDatas in use.
Definition at line 200 of file camera.cxx.
◆ make_copy()
|
virtual |
Returns a newly-allocated Node that is a shallow copy of this one.
It will be a different Node pointer, but its internal data may or may not be shared with that of the original Node.
Reimplemented from LensNode.
Reimplemented in Spotlight, RectangleLight, SphereLight, DirectionalLight, and PointLight.
Definition at line 69 of file camera.cxx.
◆ register_with_read_factory()
|
static |
Tells the BamReader how to create objects of type Camera.
Definition at line 262 of file camera.cxx.
References BamReader::get_factory(), and Factory< Type >::register_factory().
Referenced by init_libpgraph().
◆ safe_to_flatten()
|
virtual |
◆ safe_to_transform()
|
virtual |
◆ write_datagram()
Writes the contents of this object to the datagram for shipping out to a Bam file.
Reimplemented from LensNode.
Reimplemented in Spotlight, LightLensNode, PointLight, DirectionalLight, RectangleLight, and SphereLight.
Definition at line 271 of file camera.cxx.
References Datagram::add_bool(), Datagram::add_stdfloat(), Datagram::add_uint32(), BamWriter::get_file_minor_ver(), BitMask< WType, nbits >::get_word(), LensNode::write_datagram(), and BamWriter::write_pointer().
Referenced by LightLensNode::write_datagram().
Member Data Documentation
◆ clear_aux_scene_data
| bool Camera::clear_aux_scene_data |
Removes the AuxSceneData associated with the indicated NodePath.
Returns true if it is removed successfully, false if it was already gone.
◆ clear_tag_state
| void Camera::clear_tag_state |
Removes the association established by a previous call to set_tag_state().
◆ get_aux_scene_data
| AuxSceneData * Camera::get_aux_scene_data |
Returns the AuxSceneData associated with the indicated NodePath, or NULL if nothing is associated.
◆ get_camera_mask
|
inline |
Returns the set of bits that represent the subset of the scene graph the camera will render.
See set_camera_mask().
Definition at line 63 of file camera.h.
Referenced by CullTraverser::set_scene().
◆ get_cull_bounds
|
inline |
Returns the custom cull volume that was set by set_cull_bounds(), if any, or NULL if no custom cull volume was set.
◆ get_cull_center
|
inline |
Returns the point from which the culling operations will be performed, if it was set by set_cull_center(), or the empty NodePath otherwise.
◆ get_display_region
|
inline |
◆ get_lod_center
|
inline |
Returns the point from which the LOD distances will be measured, if it was set by set_lod_center(), or the empty NodePath otherwise.
◆ get_lod_scale
|
inline |
◆ get_num_display_regions
|
inline |
◆ get_scene
|
inline |
Returns the scene that will be rendered by the camera.
See set_scene().
◆ get_tag_state_key
|
inline |
Returns the tag key as set by a previous call to set_tag_state_key().
Definition at line 83 of file camera.h.
Referenced by CullTraverser::set_scene().
◆ has_tag_state
| bool Camera::has_tag_state |
Returns true if set_tag_state() has previously been called with the indicated tag state, false otherwise.
◆ is_active
|
inline |
◆ set_active
|
inline |
Sets the active flag on the camera.
When the camera is not active, nothing will be rendered.
Definition at line 50 of file camera.h.
Referenced by LightLensNode::set_shadow_caster().
◆ set_camera_mask
|
inline |
Changes the set of bits that represent the subset of the scene graph the camera will render.
During the cull traversal, a node is not visited if none of its draw mask bits intersect with the camera's camera mask bits. These masks can be used to selectively hide and show different parts of the scene graph from different cameras that are otherwise viewing the same scene.
◆ set_cull_bounds
|
inline |
Specifies the bounding volume that should be used to perform culling from this camera.
Normally, this is the bounding volume returned from the active lens' make_bounds() call, but you may override this to specify a custom volume if you require. The specified bounding volume will be understood to be in the coordinate space of the get_cull_center() node.
◆ set_cull_center
|
inline |
Specifies the point from which the culling operations are performed.
Normally, this is the same as the camera, and that is the default if this is not specified; but it may sometimes be useful to perform the culling from some other viewpoint, particularly when you are debugging the culling itself.
◆ set_initial_state
|
inline |
◆ set_lod_center
|
inline |
Specifies the point from which the LOD distances are measured.
Normally, this is the same as the camera, and that is the default if this is not specified; but it may sometimes be useful to perform the distance test from some other viewpoint. This may be used, for instance, to reduce LOD popping when the camera rotates in a small circle about an avatar.
◆ set_lod_scale
|
inline |
◆ set_scene
|
inline |
Sets the scene that will be rendered by the camera.
This is normally the root node of a scene graph, typically a node called 'render', although it could represent the root of any subgraph.
Note that the use of this method is now deprecated. In the absence of an explicit scene set on the camera, the camera will render whatever scene it is parented into. This is the preferred way to specify the scene, since it is the more intuitive mechanism.
◆ set_tag_state
| void Camera::set_tag_state |
Associates a particular state transition with the indicated tag value.
When a node is encountered during traversal with the tag key specified by set_tag_state_key(), if the value of that tag matches tag_state, then the indicated state is applied to this node–but only when it is rendered by this camera.
This can be used to apply special effects to nodes when they are rendered by certain cameras. It is particularly useful for multipass rendering, in which specialty cameras might be needed to render the scene with a particular set of effects.
The documentation for this class was generated from the following files:
- panda/src/pgraph/camera.h
- panda/src/pgraph/camera.cxx
- panda/src/pgraph/camera.I
