void MaterialInstance::createForConfiguration (const std::string& configuration)
{
bool res = mMaterial->createConfiguration(configuration);
if (!res)
return; // listener was false positive
if (mListener)
mListener->requestedConfiguration (this, configuration);
mFactory->setActiveConfiguration (configuration);
bool allowFixedFunction = true;
if (!mShadersEnabled && hasProperty("allow_fixed_function"))
{
allowFixedFunction = retrieveValue<BooleanValue>(getProperty("allow_fixed_function"), NULL).get();
}
// get passes of the top-most parent
PassVector passes = getPasses();
for (PassVector::iterator it = passes.begin(); it != passes.end(); ++it)
{
boost::shared_ptr<Pass> pass = mMaterial->createPass (configuration);
it->copyAll (pass.get(), this);
// texture samplers used in the shaders
std::vector<std::string> usedTextureSamplersVertex;
std::vector<std::string> usedTextureSamplersFragment;
PropertySetGet* context = this;
// create or retrieve shaders
if (mShadersEnabled || !allowFixedFunction)
{
it->setContext(context);
it->mShaderProperties.setContext(context);
if (it->hasProperty("vertex_program"))
{
ShaderSet* vertex = mFactory->getShaderSet(retrieveValue<StringValue>(it->getProperty("vertex_program"), context).get());
ShaderInstance* v = vertex->getInstance(&it->mShaderProperties);
if (v)
{
pass->assignProgram (GPT_Vertex, v->getName());
v->setUniformParameters (pass, &it->mShaderProperties);
std::vector<std::string> sharedParams = v->getSharedParameters ();
for (std::vector<std::string>::iterator it = sharedParams.begin(); it != sharedParams.end(); ++it)
{
pass->addSharedParameter (GPT_Vertex, *it);
}
std::vector<std::string> vector = v->getUsedSamplers ();
usedTextureSamplersVertex.insert(usedTextureSamplersVertex.end(), vector.begin(), vector.end());
}
}
if (it->hasProperty("fragment_program"))
{
ShaderSet* fragment = mFactory->getShaderSet(retrieveValue<StringValue>(it->getProperty("fragment_program"), context).get());
ShaderInstance* f = fragment->getInstance(&it->mShaderProperties);
if (f)
{
pass->assignProgram (GPT_Fragment, f->getName());
f->setUniformParameters (pass, &it->mShaderProperties);
std::vector<std::string> sharedParams = f->getSharedParameters ();
for (std::vector<std::string>::iterator it = sharedParams.begin(); it != sharedParams.end(); ++it)
{
pass->addSharedParameter (GPT_Fragment, *it);
}
std::vector<std::string> vector = f->getUsedSamplers ();
usedTextureSamplersFragment.insert(usedTextureSamplersFragment.end(), vector.begin(), vector.end());
}
}
}
// create texture units
std::vector<MaterialInstanceTextureUnit> texUnits = it->getTexUnits();
int i=0;
for (std::vector<MaterialInstanceTextureUnit>::iterator texIt = texUnits.begin(); texIt != texUnits.end(); ++texIt )
{
// only create those that are needed by the shader, OR those marked to be created in fixed function pipeline if shaders are disabled
bool foundVertex = std::find(usedTextureSamplersVertex.begin(), usedTextureSamplersVertex.end(), texIt->getName()) != usedTextureSamplersVertex.end();
bool foundFragment = std::find(usedTextureSamplersFragment.begin(), usedTextureSamplersFragment.end(), texIt->getName()) != usedTextureSamplersFragment.end();
if ( (foundVertex || foundFragment)
|| ((!mShadersEnabled && allowFixedFunction) && texIt->hasProperty("create_in_ffp") && retrieveValue<BooleanValue>(texIt->getProperty("create_in_ffp"), this).get()))
{
boost::shared_ptr<TextureUnitState> texUnit = pass->createTextureUnitState ();
texIt->copyAll (texUnit.get(), context);
mTexUnits.push_back(texUnit);
// set texture unit indices (required by GLSL)
if (mShadersEnabled && mFactory->getCurrentLanguage () == Language_GLSL)
{
pass->setTextureUnitIndex (foundVertex ? GPT_Vertex : GPT_Fragment, texIt->getName(), i);
++i;
}
}
}
}
}
