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| __init__ (GraphicsOutput host) |
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| __init__ (const PipeOcclusionCullTraverser copy) |
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| endTraverse () |
| Should be called when the traverser has finished traversing its scene, this gives it a chance to do any necessary finalization. More...
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GraphicsOutput | getBuffer () |
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const DrawMask | getOcclusionMask () |
| Returns the DrawMask for occlusion polygons. See set_occlusion_mask(). More...
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Texture | getTexture () |
| Returns a Texture that can be used to visualize the efforts of the occlusion cull. More...
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| setOcclusionMask (const DrawMask occlusion_mask) |
| Specifies the DrawMask that should be set on occlusion polygons for this scene. This identifies the polygons that are to be treated as occluders. Polygons that do not have this draw mask set will not be considered occluders. More...
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| setScene (SceneSetup scene_setup, GraphicsStateGuardianBase gsg, bool dr_incomplete_render) |
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Public Member Functions inherited from CullTraverser |
| __init__ () |
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| __init__ (const CullTraverser copy) |
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| drawBoundingVolume (const BoundingVolume vol, const TransformState internal_transform) |
| Draws an appropriate visualization of the indicated bounding volume. More...
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| endTraverse () |
| Should be called when the traverser has finished traversing its scene, this gives it a chance to do any necessary finalization. More...
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const DrawMask | getCameraMask () |
| Returns the visibility mask from the camera viewing the scene. More...
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const TransformState | getCameraTransform () |
| Returns the position of the camera relative to the starting node. More...
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CullHandler | getCullHandler () |
| Returns the object that will receive the culled Geoms. More...
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Thread | getCurrentThread () |
| Returns the currently-executing thread object, as passed to the CullTraverser constructor. More...
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bool | getDepthOffsetDecals () |
| Returns true, as depth offsets are the only way that we implement decals nowadays. More...
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bool | getEffectiveIncompleteRender () |
| Returns true if the cull traversal is effectively in incomplete_render state, considering both the GSG's incomplete_render and the current DisplayRegion's incomplete_render flags. This returns the flag during the cull traversal; see GSG::get_effective_incomplete_render() for this same flag during the draw traversal. More...
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GraphicsStateGuardianBase | getGsg () |
| Returns the GraphicsStateGuardian in effect. More...
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const RenderState | getInitialState () |
| Returns the initial RenderState at the top of the scene graph we are traversing, or the empty state if the initial state was never set. More...
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PortalClipper | getPortalClipper () |
| Returns the _portal_clipper pointer. More...
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SceneSetup | getScene () |
| Returns the SceneSetup object. More...
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str | getTagStateKey () |
| Returns the tag state key that has been specified for the scene's camera, if any. More...
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GeometricBoundingVolume | getViewFrustum () |
| Returns the bounding volume that corresponds to the view frustum, or NULL if the view frustum is not in use or has not been set. More...
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const TransformState | getWorldTransform () |
| Returns the position of the starting node relative to the camera. This is the inverse of the camera transform. More...
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bool | hasTagStateKey () |
| Returns true if a nonempty tag state key has been specified for the scene's camera, false otherwise. More...
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| setCameraMask (const DrawMask camera_mask) |
| Changes the visibility mask for the camera viewing the scene. This is normally set automatically at the time setup_scene() is called; you should change this only if you want to render some set of objects different from what the camera normally would draw. More...
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| setCullHandler (CullHandler cull_handler) |
| Specifies the object that will receive the culled Geoms. This must be set before calling traverse(). More...
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| setPortalClipper (PortalClipper portal_clipper) |
| Specifies _portal_clipper object pointer that subsequent traverse() or traverse_below may use. More...
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| setScene (SceneSetup scene_setup, GraphicsStateGuardianBase gsg, bool dr_incomplete_render) |
| Sets the SceneSetup object that indicates the initial camera position, etc. This must be called before traversal begins. More...
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| setViewFrustum (GeometricBoundingVolume view_frustum) |
| Specifies the bounding volume that corresponds to the view frustum. Any primitives that fall entirely outside of this volume are not drawn. More...
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| traverse (CullTraverserData data) |
| Traverses from the next node with the given data, which has been constructed with the node but has not yet been converted into the node's space. More...
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| traverse (const NodePath root) |
| Begins the traversal from the indicated node. More...
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| traverseBelow (CullTraverserData data) |
| Traverses all the children of the indicated node, with the given data, which has been converted into the node's space. More...
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Public Member Functions inherited from TypedObject |
TypeHandle | getType () |
| Derived classes should override this function to return get_class_type(). More...
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int | getTypeIndex () |
| Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. This is equivalent to get_type().get_index(). More...
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bool | isExactType (TypeHandle handle) |
| Returns true if the current object is the indicated type exactly. More...
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bool | isOfType (TypeHandle handle) |
| Returns true if the current object is or derives from the indicated type. More...
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Public Member Functions inherited from ReferenceCount |
int | getRefCount () |
| Returns the current reference count. More...
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| ref () |
| Explicitly increments the reference count. User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically. More...
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bool | testRefCountIntegrity () |
| Does some easy checks to make sure that the reference count isn't completely bogus. Returns true if ok, false otherwise. More...
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bool | testRefCountNonzero () |
| Does some easy checks to make sure that the reference count isn't zero, or completely bogus. Returns true if ok, false otherwise. More...
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bool | unref () |
| Explicitly decrements the reference count. Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic.) However, see the helper function unref_delete(). More...
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This specialization of CullTraverser uses the graphics pipe itself to perform occlusion culling. As such, it's likely to be inefficient (since it interferes with the pipe's normal mode of rendering), and is mainly useful to test other, CPU-based occlusion algorithms.
This cannot be used in a multithreaded pipeline environment where cull and draw are operating simultaneously.
It can't be defined in the cull subdirectory, because it needs access to GraphicsPipe and DisplayRegion and other classes in display. So we put it in grutil instead, for lack of any better ideas.