openscenegraph
CollectOccludersVisitor
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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version. The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * OpenSceneGraph Public License for more details.
12*/
13
14#ifndef OSG_COLLECTOCCLUDERSVISITOR
15#define OSG_COLLECTOCCLUDERSVISITOR 1
16
17#include <osg/NodeVisitor>
18#include <osg/CullStack>
19
20#include <set>
21
22namespace osg {
23
25{
26 public:
27
28
29 typedef std::set<ShadowVolumeOccluder> ShadowVolumeOccluderSet;
30
33
37
38 virtual void reset();
39
40 virtual float getDistanceToEyePoint(const Vec3& pos, bool withLODScale) const;
41 virtual float getDistanceToViewPoint(const Vec3& pos, bool withLODScale) const;
42
43 virtual float getDistanceFromEyePoint(const Vec3& pos, bool withLODScale) const;
44
45 virtual void apply(osg::Node&);
46 virtual void apply(osg::Transform& node);
47 virtual void apply(osg::Projection& node);
48
49 virtual void apply(osg::Switch& node);
50 virtual void apply(osg::LOD& node);
51 virtual void apply(osg::OccluderNode& node);
52
56 void setMinimumShadowOccluderVolume(float vol) { _minimumShadowOccluderVolume = vol; }
57 float getMinimumShadowOccluderVolume() const { return _minimumShadowOccluderVolume; }
58
61 void setMaximumNumberOfActiveOccluders(unsigned int num) { _maximumNumberOfActiveOccluders = num; }
62 unsigned int getMaximumNumberOfActiveOccluders() const { return _maximumNumberOfActiveOccluders; }
63
64 void setCreateDrawablesOnOccludeNodes(bool flag) { _createDrawables=flag; }
65 bool getCreateDrawablesOnOccludeNodes() const { return _createDrawables; }
66
67 void setCollectedOccluderSet(const ShadowVolumeOccluderSet& svol) { _occluderSet = svol; }
69 const ShadowVolumeOccluderSet& getCollectedOccluderSet() const { return _occluderSet; }
70
75
76
77 protected:
78
80 //CollectOccludersVisitor(const CollectOccludersVisitor&):osg::NodeVisitor(),osg::CullStack() {}
81
83 CollectOccludersVisitor& operator = (const CollectOccludersVisitor&) { return *this; }
84
86 {
87 /*osg::NodeCallback* callback = node.getCullCallback();
88 if (callback) (*callback)(&node,this);
89 else*/ if (node.getNumChildrenWithOccluderNodes()>0) traverse(node);
90 }
91
93 {
94 /*osg::NodeCallback* callback = node.getCullCallback();
95 if (callback) (*callback)(&node,this);
96 else*/ if (node.getNumChildrenWithOccluderNodes()>0) acceptNode->accept(*this);
97 }
98
103
104};
105
106}
107
108#endif
109
Definition CollectOccludersVisitor:25
float getMinimumShadowOccluderVolume() const
Definition CollectOccludersVisitor:57
void handle_cull_callbacks_and_traverse(osg::Node &node)
Definition CollectOccludersVisitor:85
void setCollectedOccluderSet(const ShadowVolumeOccluderSet &svol)
Definition CollectOccludersVisitor:67
virtual float getDistanceFromEyePoint(const Vec3 &pos, bool withLODScale) const
virtual void apply(osg::OccluderNode &node)
const ShadowVolumeOccluderSet & getCollectedOccluderSet() const
Definition CollectOccludersVisitor:69
virtual void apply(osg::Transform &node)
virtual void apply(osg::Projection &node)
ShadowVolumeOccluderSet & getCollectedOccluderSet()
Definition CollectOccludersVisitor:68
void setCreateDrawablesOnOccludeNodes(bool flag)
Definition CollectOccludersVisitor:64
virtual void apply(osg::LOD &node)
unsigned int getMaximumNumberOfActiveOccluders() const
Definition CollectOccludersVisitor:62
META_NodeVisitor(osg, CollectOccludersVisitor) virtual Object *cloneType() const
Definition CollectOccludersVisitor:34
float _minimumShadowOccluderVolume
Definition CollectOccludersVisitor:99
ShadowVolumeOccluderSet _occluderSet
Definition CollectOccludersVisitor:102
void setMinimumShadowOccluderVolume(float vol)
Definition CollectOccludersVisitor:56
virtual void apply(osg::Switch &node)
void setMaximumNumberOfActiveOccluders(unsigned int num)
Definition CollectOccludersVisitor:61
std::set< ShadowVolumeOccluder > ShadowVolumeOccluderSet
Definition CollectOccludersVisitor:29
virtual float getDistanceToViewPoint(const Vec3 &pos, bool withLODScale) const
void handle_cull_callbacks_and_accept(osg::Node &node, osg::Node *acceptNode)
Definition CollectOccludersVisitor:92
unsigned _maximumNumberOfActiveOccluders
Definition CollectOccludersVisitor:100
bool _createDrawables
Definition CollectOccludersVisitor:101
bool getCreateDrawablesOnOccludeNodes() const
Definition CollectOccludersVisitor:65
virtual void apply(osg::Node &)
virtual float getDistanceToEyePoint(const Vec3 &pos, bool withLODScale) const
Definition CullStack:28
Definition LOD:36
Definition NodeVisitor:82
Definition Node:72
unsigned int getNumChildrenWithOccluderNodes() const
Definition Node:340
virtual void accept(NodeVisitor &nv)
Definition Object:61
Definition OccluderNode:27
Definition Projection:25
Definition Switch:27
Definition Transform:75
Definition Vec3f:29
author: Julien Valentin 2017 (mp3butcher@hotmail.com)
Definition AlphaFunc:19
T * cloneType(const T *t)
Definition Object:357
#define OSG_EXPORT
Definition osg/Export:39