FGFS-4.1/OpenSceneGraph
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Replaced the custom MyTexGen class with a standard TexGen, and utilised the

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new RenderStage addPositionedTextureAtribute method.
This commit is contained in:
Robert Osfield
2004-07-08 22:12:49 +00:00
parent 8a44435e4d
commit 3248f885ec
1 changed files with 5 additions and 24 deletions
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29
examples/osgshadowtexture/CreateShadowedScene.cpp
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@@ -60,28 +60,6 @@ class CreateShadowTextureCullCallback : public osg::NodeCallback
osg::ref_ptr<osg::StateSet> _shadowState;
osg::ref_ptr<osg::StateSet> _shadowedState;
// we need this to get round the order dependance
// of eye linear tex gen...
class MyTexGen : public TexGen
{
public:
void setMatrix(const osg::Matrix& matrix)
{
_matrix = matrix;
}
virtual void apply(osg::State& state) const
{
glPushMatrix();
glLoadMatrix(_matrix.ptr());
TexGen::apply(state);
glPopMatrix();
}
osg::Matrix _matrix;
};
};
void CreateShadowTextureCullCallback::doPreRender(osg::Node& node, osgUtil::CullVisitor& cv)
@@ -219,14 +197,17 @@ void CreateShadowTextureCullCallback::doPreRender(osg::Node& node, osgUtil::Cull
// set up the stateset to decorate the shadower with the shadow texture
// with the appropriate tex gen coords.
MyTexGen* texgen = new MyTexGen;
texgen->setMatrix(MV);
TexGen* texgen = new TexGen;
//texgen->setMatrix(MV);
texgen->setMode(osg::TexGen::EYE_LINEAR);
texgen->setPlane(osg::TexGen::S,osg::Plane(MVPT(0,0),MVPT(1,0),MVPT(2,0),MVPT(3,0)));
texgen->setPlane(osg::TexGen::T,osg::Plane(MVPT(0,1),MVPT(1,1),MVPT(2,1),MVPT(3,1)));
texgen->setPlane(osg::TexGen::R,osg::Plane(MVPT(0,2),MVPT(1,2),MVPT(2,2),MVPT(3,2)));
texgen->setPlane(osg::TexGen::Q,osg::Plane(MVPT(0,3),MVPT(1,3),MVPT(2,3),MVPT(3,3)));
cv.getRenderStage()->addPositionedTextureAttribute(0,new osg::RefMatrix(MV),texgen);
_shadowedState->setTextureAttributeAndModes(_unit,_texture.get(),osg::StateAttribute::ON);
_shadowedState->setTextureAttribute(_unit,texgen);
_shadowedState->setTextureMode(_unit,GL_TEXTURE_GEN_S,osg::StateAttribute::ON);