83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file cullPlanes.h
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* @author drose
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* @date 2005-08-23
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*/
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#ifndef CULLPLANES_H
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#define CULLPLANES_H
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#include "pandabase.h"
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#include "referenceCount.h"
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#include "nodePath.h"
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#include "boundingHexahedron.h"
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#include "boundingPlane.h"
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#include "pointerTo.h"
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#include "luse.h"
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#include "deletedChain.h"
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class ClipPlaneAttrib;
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class OccluderEffect;
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/**
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* This represents the set of clip planes and/or occluders that are definitely
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* in effect for the current node of the CullTraverserData, as well as on all
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* child nodes. Any clip planes and occluders in this list may be safely
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* culled against.
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*
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* This does not include the clip planes that are in effect now, but might
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* later be turned off by a child node, since we can't safely cull against
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* such clip planes.
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*
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* The bounding volumes in this object are transformed for each level of the
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* scene graph.
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*/
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class EXPCL_PANDA_PGRAPH CullPlanes : public ReferenceCount {
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protected:
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INLINE CullPlanes();
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INLINE CullPlanes(const CullPlanes ©);
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INLINE void operator = (const CullPlanes ©);
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public:
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INLINE ~CullPlanes();
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ALLOC_DELETED_CHAIN(CullPlanes);
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INLINE bool is_empty() const;
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static CPT(CullPlanes) make_empty();
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CPT(CullPlanes) xform(const LMatrix4 &mat) const;
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CPT(CullPlanes) apply_state(const CullTraverser *trav,
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const CullTraverserData *data,
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const ClipPlaneAttrib *net_attrib,
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const ClipPlaneAttrib *off_attrib,
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const OccluderEffect *node_effect) const;
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CPT(CullPlanes) do_cull(int &result, CPT(RenderState) &state,
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const GeometricBoundingVolume *node_gbv) const;
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CPT(CullPlanes) remove_plane(const NodePath &clip_plane) const;
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CPT(CullPlanes) remove_occluder(const NodePath &occluder) const;
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void write(std::ostream &out) const;
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private:
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typedef pmap<NodePath, PT(BoundingPlane) > Planes;
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Planes _planes;
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typedef pmap<NodePath, PT(BoundingHexahedron) > Occluders;
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Occluders _occluders;
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};
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// We can safely redefine this as a no-op.
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template<>
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INLINE void PointerToBase<CullPlanes>::update_type(To *ptr) {}
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#include "cullPlanes.I"
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#endif
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