The PPL sub render state is not needed if you dont want it. Please note it is added as a TEMPLATE sub render state so it is added to all materials.
You do need, however, a couple more steps to get you up and running.
Firstly you need to set your viewport to use the default material scheme that the RTSS uses.
Code: Select all
ogreViewport->setMaterialScheme(Ogre::RTShader::ShaderGenerator::DEFAULT_SCHEME_NAME);
you need to set up a material listener to convert any materials which have not been setup for RTSS in the material script. If you have setup all materials using the rt_shader_system definition then you do not need to do this. Also note this will not convert any materials that have vertex or fragment shaders defined in the material.
Code: Select all
class RTSSDefaultTechniqueListener: public Ogre::MaterialManager::Listener
{
public:
RTSSDefaultTechniqueListener::RTSSDefaultTechniqueListener(Ogre::RTShader::ShaderGenerator* pShaderGenerator)
{
m_ShaderGenerator = pShaderGenerator;
}
//---------------------------------------------------------------------------
virtual RTSSDefaultTechniqueListener::~RTSSDefaultTechniqueListener()
{
}
//-----
/** This is the hook point where shader based technique will be created.
It will be called whenever the material manager won't find appropriate technique
that satisfy the target scheme name. If the scheme name is out target RT Shader System
scheme name we will try to create shader generated technique for it.
*/
virtual Ogre::Technique* handleSchemeNotFound(unsigned short schemeIndex,
const Ogre::String& schemeName, Ogre::Material* originalMaterial, unsigned short lodIndex,
const Ogre::Renderable* rend)
{
Ogre::Technique* generatedTech = NULL;
// Case this is the default shader generator scheme.
if (schemeName == Ogre::RTShader::ShaderGenerator::DEFAULT_SCHEME_NAME)
{
bool techniqueCreated;
// Create shader generated technique for this material.
techniqueCreated = m_ShaderGenerator->createShaderBasedTechnique(
originalMaterial->getName(),
Ogre::MaterialManager::DEFAULT_SCHEME_NAME,
schemeName);
// Case technique registration succeeded.
if (techniqueCreated)
{
// Force creating the shaders for the generated technique.
m_ShaderGenerator->validateMaterial(schemeName, originalMaterial->getName());
// Grab the generated technique.
Ogre::Material::TechniqueIterator itTech = originalMaterial->getTechniqueIterator();
while (itTech.hasMoreElements())
{
Ogre::Technique* curTech = itTech.getNext();
if (curTech->getSchemeName() == schemeName)
{
generatedTech = curTech;
break;
}
}
}
}
return generatedTech;
}
private:
Ogre::RTShader::ShaderGenerator* m_ShaderGenerator; // The shader generator instance.
};
We need to work on the documentation, so I would suggest a better place to to find information about the RTSS in the RTSS sample/demo.
. At the moment there is only a handful of Sub Render States (SRS) which can be applied to a render state or material. However these SRS allow you to very quickly add different types of materials. For example you might want have a material with a normal map and a reflection map in which case your material would look like this
