FGFS-4.1/OpenSceneGraph
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Added setup of uniform arrays for passing in texture modes

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This commit is contained in:
Robert Osfield 2016-10-26 11:34:23 +01:00
parent df034d6fb8
commit 5f875682bf
1 changed files with 56 additions and 0 deletions
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56
examples/osgshaderpipeline/osgshaderpipeline.cpp
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@ -9,6 +9,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <osg/TexGen>
#include <osgDB/ReadFile>
#include <osgGA/StateSetManipulator>
@ -93,6 +94,61 @@ int main(int argc, char** argv)
viewer.setSceneData(loadedModel);
osg::ref_ptr<osg::StateSet> stateset = viewer.getCamera()->getOrCreateStateSet();
unsigned int maxTextureUnits = 1;
std::stringstream sstream;
sstream<<maxTextureUnits;
stateset->setDefine("GL_MAX_TEXTURE_UNITS", sstream.str());
#define ADD_DEFINE(DEF) \
sstream.str(""); \
sstream<<DEF; \
stateset->setDefine(#DEF, sstream.str());
if (maxTextureUnits>0)
{
ADD_DEFINE(GL_EYE_LINEAR);
ADD_DEFINE(GL_OBJECT_LINEAR);
ADD_DEFINE(GL_SPHERE_MAP);
ADD_DEFINE(GL_NORMAL_MAP);
ADD_DEFINE(GL_REFLECTION_MAP);
ADD_DEFINE(GL_MODULATE);
ADD_DEFINE(GL_REPLACE);
ADD_DEFINE(GL_DECAL);
ADD_DEFINE(GL_BLEND);
ADD_DEFINE(GL_ADD);
osg::ref_ptr<osg::Uniform> ACTIVE_TEXTURE = new osg::Uniform(osg::Uniform::BOOL, "GL_ACTIVE_TEXTURE", maxTextureUnits);
osg::ref_ptr<osg::Uniform> TEXTURE_GEN_S = new osg::Uniform(osg::Uniform::BOOL, "GL_TEXTURE_GEN_S", maxTextureUnits);
osg::ref_ptr<osg::Uniform> TEXTURE_GEN_T = new osg::Uniform(osg::Uniform::BOOL, "GL_TEXTURE_GEN_T", maxTextureUnits);
osg::ref_ptr<osg::Uniform> TEXTURE_GEN_MODE = new osg::Uniform(osg::Uniform::INT, "GL_TEXTURE_GEN_MODE", maxTextureUnits);
osg::ref_ptr<osg::Uniform> TEXTURE_ENV_MODE = new osg::Uniform(osg::Uniform::INT, "GL_TEXTURE_ENV_MODE", maxTextureUnits);
for(unsigned int i=0; i<maxTextureUnits;++i)
{
ACTIVE_TEXTURE->setElement(i, false);
TEXTURE_GEN_MODE->setElement(i, 0);
TEXTURE_GEN_S->setElement(i, false);
TEXTURE_GEN_T->setElement(i, false);
}
ACTIVE_TEXTURE->setElement(0, true);
//TEXTURE_GEN_MODE->setElement(0, 0);
TEXTURE_GEN_MODE->setElement(0, GL_SPHERE_MAP);
TEXTURE_GEN_S->setElement(0, true);
TEXTURE_GEN_T->setElement(0, true);
stateset->addUniform(ACTIVE_TEXTURE.get());
stateset->addUniform(TEXTURE_GEN_S.get());
stateset->addUniform(TEXTURE_GEN_T.get());
stateset->addUniform(TEXTURE_GEN_MODE.get());
stateset->addUniform(TEXTURE_ENV_MODE.get());
}
viewer.realize();
return viewer.run();