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Various API updates to suppor light points developments better, but should also

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benifit other extensions to rendering.
This commit is contained in:
Robert Osfield 2002-05-18 08:39:42 +00:00
parent 116e0cd8c9
commit 00f91631c2
5 changed files with 74 additions and 14 deletions
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32
include/osg/ClippingVolume
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@ -22,6 +22,11 @@ class SG_EXPORT ClippingVolume
inline ClippingVolume() {setupMask();}
inline ClippingVolume(const ClippingVolume& cs, const unsigned int mask)
{
set(cs,mask);
}
inline ClippingVolume(const ClippingVolume& cv) : _localMask(cv._localMask), _planeList(cv._planeList) {}
inline ClippingVolume(const PlaneList& pl) : _planeList(pl) {setupMask();}
@ -61,6 +66,19 @@ class SG_EXPORT ClippingVolume
setupMask();
}
inline void set(const ClippingVolume& cs, const unsigned int mask)
{
unsigned int selector_mask = 0x1;
for(PlaneList::const_iterator itr=cs._planeList.begin();
itr!=cs._planeList.end();
++itr)
{
if (mask&selector_mask) _planeList.push_back(*itr);
selector_mask <<= 1;
}
setupMask();
}
inline void set(const ClippingVolume& cs) { _planeList = cs._planeList; setupMask(); }
inline void set(const PlaneList& pl) { _planeList = pl; setupMask(); }
@ -93,6 +111,20 @@ class SG_EXPORT ClippingVolume
return true;
}
inline const bool contains(const osg::Vec3& v,const unsigned int mask) const
{
if (!(mask & _localMask)) return true;
unsigned int selector_mask = 0x1;
for(PlaneList::const_iterator itr=_planeList.begin();
itr!=_planeList.end();
++itr)
{
if (mask&selector_mask && (itr->distance(v)<0.0f)) return false;
selector_mask <<= 1;
}
return true;
}
/** Check whether any part of a bounding sphere is contained within clipping set.
Using a mask to determine which planes should be used for the check, and
modifying the mask to turn off planes which wouldn't contribute to clipping

39
include/osg/Vec4
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@ -5,7 +5,7 @@
#ifndef OSG_VEC4
#define OSG_VEC4 1
#include <osg/Math>
#include <osg/Vec3>
#include <iostream>
@ -24,11 +24,24 @@ class Vec4
// Methods are defined here so that they are implicitly inlined
Vec4() { _v[0]=0.0f; _v[1]=0.0f; _v[2]=0.0f; _v[3]=0.0f;}
Vec4(float x, float y, float z, float w)
{
_v[0]=x; _v[1]=y; _v[2]=z; _v[3]=w;
_v[0]=x;
_v[1]=y;
_v[2]=z;
_v[3]=w;
}
Vec4(const Vec3& v3,float w)
{
_v[0]=v3[0];
_v[1]=v3[1];
_v[2]=v3[2];
_v[3]=w;
}
float _v[4];
inline const bool operator == (const Vec4& v) const { return _v[0]==v._v[0] && _v[1]==v._v[1] && _v[2]==v._v[2] && _v[3]==v._v[3]; }
@ -67,15 +80,21 @@ class Vec4
inline float z() const { return _v[2]; }
inline float w() const { return _v[3]; }
inline unsigned long asABGR() const { return clampTo((unsigned long)(_v[0]*255),0ul,255ul)<<24 |
clampTo((unsigned long)(_v[1]*255),0ul,255ul)<<16 |
clampTo((unsigned long)(_v[2]*255),0ul,255ul)<<8 |
clampTo((unsigned long)(_v[3]*255),0ul,255ul); }
inline unsigned long asABGR() const
{
return (unsigned long)clampTo((_v[0]*255.0f),0.0f,255.0f)<<24 |
(unsigned long)clampTo((_v[1]*255.0f),0.0f,255.0f)<<16 |
(unsigned long)clampTo((_v[2]*255.0f),0.0f,255.0f)<<8 |
(unsigned long)clampTo((_v[3]*255.0f),0.0f,255.0f);
}
inline unsigned long asRGBA() const { return clampTo((unsigned long)(_v[3]*255),0ul,255ul)<<24 |
clampTo((unsigned long)(_v[2]*255),0ul,255ul)<<16 |
clampTo((unsigned long)(_v[1]*255),0ul,255ul)<<8 |
clampTo((unsigned long)(_v[0]*255),0ul,255ul); }
inline const unsigned long asRGBA() const
{
return (unsigned long)clampTo((_v[3]*255.0f),0.0f,255.0f)<<24 |
(unsigned long)clampTo((_v[2]*255.0f),0.0f,255.0f)<<16 |
(unsigned long)clampTo((_v[1]*255.0f),0.0f,255.0f)<<8 |
(unsigned long)clampTo((_v[0]*255.0f),0.0f,255.0f);
}
inline const bool valid() const { return !isNaN(); }

7
include/osgUtil/CullVisitor
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@ -238,6 +238,8 @@ class OSGUTIL_EXPORT CullVisitor : public osg::NodeVisitor
}
osg::ClippingVolume& getCurrentClippingVolume() { return _modelviewClippingVolumeStack.back(); }
inline bool isCulled(const osg::BoundingSphere& sp,CullingMode& mode)
{
if (!sp.isValid()) return true;
@ -258,7 +260,10 @@ class OSGUTIL_EXPORT CullVisitor : public osg::NodeVisitor
return !_modelviewClippingVolumeStack.back().contains(bb,mode);
}
void updateCalculatedNearFar(const osg::Matrix& matrix,const osg::Drawable& drawable);
const CullingMode getCurrentCullingMode() const { return _cullingModeStack.back(); }
void updateCalculatedNearFar(const osg::Matrix& matrix,const osg::Drawable& drawable) { updateCalculatedNearFar(matrix,drawable.getBound()); }
void updateCalculatedNearFar(const osg::Matrix& matrix,const osg::BoundingBox& bb);
void updateCalculatedNearFar(const osg::Vec3& pos);
/** Add a drawable to current render graph.*/

6
include/osgUtil/RenderGraph
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@ -34,6 +34,8 @@ class OSGUTIL_EXPORT RenderGraph : public osg::Referenced
ChildList _children;
LeafList _leaves;
osg::ref_ptr<osg::Referenced> _userData;
RenderGraph():
_parent(NULL),
@ -54,6 +56,10 @@ class OSGUTIL_EXPORT RenderGraph : public osg::Referenced
RenderGraph* cloneType() const { return new RenderGraph; }
void setUserData(osg::Referenced* obj) { _userData = obj; }
osg::Referenced* getUserData() { return _userData.get(); }
const osg::Referenced* getUserData() const { return _userData.get(); }
/** return true if all of drawables, lights and children are empty.*/
inline const bool empty() const

4
src/osgUtil/CullVisitor.cpp
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@ -304,9 +304,8 @@ inline float distance(const osg::Vec3& coord,const osg::Matrix& matrix)
}
void CullVisitor::updateCalculatedNearFar(const osg::Matrix& matrix,const osg::Drawable& drawable)
void CullVisitor::updateCalculatedNearFar(const osg::Matrix& matrix,const osg::BoundingBox& bb)
{
const osg::BoundingBox& bb = drawable.getBound();
float d_near = distance(bb.corner(_bbCornerNear),matrix);
float d_far = distance(bb.corner(_bbCornerFar),matrix);
@ -329,7 +328,6 @@ void CullVisitor::updateCalculatedNearFar(const osg::Matrix& matrix,const osg::D
}
}
void CullVisitor::updateCalculatedNearFar(const osg::Vec3& pos)
{
float d;