Method getShader

Engine/source/materials/shaderData.cpp:187–216

}

GFXShader* ShaderData::getShader( const Vector<GFXShaderMacro> &macros )
{
   PROFILE_SCOPE( ShaderData_GetShader );

   // Combine the dynamic macros with our script defined macros.
   Vector<GFXShaderMacro> finalMacros;
   finalMacros.merge( _getMacros() );
   finalMacros.merge( macros );

   // Convert the final macro list to a string.
   String cacheKey;
   GFXShaderMacro::stringize( macros, &cacheKey );   

   // Lookup the shader for this instance.
   ShaderCache::Iterator iter = mShaders.find( cacheKey );
   if ( iter != mShaders.end() )
      return iter->value;

   // Create the shader instance... if it fails then
   // bail out and return nothing to the caller.
   GFXShader *shader = _createShader( finalMacros );
   if ( !shader )
      return NULL;

   _checkDefinition(shader);

   // Store the shader in the cache and return it.
   mShaders.insertUnique( cacheKey, shader );
   return shader;
}

GFXShader* ShaderData::_createShader( const Vector<GFXShaderMacro> &macros )
{