84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
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/**
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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 cullBinBackToFront.h
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* @author drose
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* @date 2002-02-28
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*/
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#ifndef CULLBINBACKTOFRONT_H
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#define CULLBINBACKTOFRONT_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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* A specific kind of CullBin that sorts geometry in order from furthest to
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* nearest based on the center of its bounding volume. This is primarily
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* intended for rendering transparent and semi-transparent geometry that must
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* be sorted from back to front.
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*/
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class EXPCL_PANDA_CULL CullBinBackToFront : public CullBin {
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public:
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INLINE CullBinBackToFront(const std::string &name,
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GraphicsStateGuardianBase *gsg,
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const PStatCollector &draw_region_pcollector);
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virtual ~CullBinBackToFront();
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static CullBin *make_bin(const std::string &name,
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GraphicsStateGuardianBase *gsg,
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const PStatCollector &draw_region_pcollector);
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virtual void add_object(CullableObject *object, Thread *current_thread);
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virtual void finish_cull(SceneSetup *scene_setup, Thread *current_thread);
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virtual void draw(bool force, Thread *current_thread);
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protected:
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virtual void fill_result_graph(ResultGraphBuilder &builder);
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private:
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class ObjectData {
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public:
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INLINE ObjectData(CullableObject *object, PN_stdfloat dist);
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INLINE bool operator < (const ObjectData &other) const;
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CullableObject *_object;
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PN_stdfloat _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, "CullBinBackToFront",
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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 "cullBinBackToFront.I"
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#endif
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