85 lines
2.4 KiB
C++
85 lines
2.4 KiB
C++
// Filename: cullBinFrontToBack.h
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// Created by: drose (29May02)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#ifndef CULLBINFRONTTOBACK_H
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#define CULLBINFRONTTOBACK_H
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#include "pandabase.h"
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#include "cullBin.h"
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#include "geom.h"
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#include "transformState.h"
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#include "renderState.h"
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#include "pointerTo.h"
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////////////////////////////////////////////////////////////////////
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// Class : CullBinFrontToBack
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// Description : A specific kind of CullBin that sorts geometry in
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// order from nearest to furthest based on the center of
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// its bounding volume.
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//
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// This is useful for rendering opaque geometry, taking
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// optimal advantage of a hierarchical Z-buffer.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA CullBinFrontToBack : public CullBin {
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public:
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INLINE CullBinFrontToBack(const string &name, GraphicsStateGuardianBase *gsg);
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virtual ~CullBinFrontToBack();
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virtual void add_object(CullableObject *object);
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virtual void finish_cull();
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virtual void draw();
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private:
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class ObjectData {
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public:
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INLINE ObjectData(CullableObject *object, float dist);
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INLINE bool operator < (const ObjectData &other) const;
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CullableObject *_object;
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float _dist;
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};
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typedef pvector<ObjectData> Objects;
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Objects _objects;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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CullBin::init_type();
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register_type(_type_handle, "CullBinFrontToBack",
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CullBin::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "cullBinFrontToBack.I"
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#endif
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