patchMeshPhysicalMaterial method
void
patchMeshPhysicalMaterial()
Implementation
void patchMeshPhysicalMaterial(){
final baseFragmentShader = shaderLib['physical']?['fragmentShader'];
final fragmentShader = buildFragment(baseFragmentShader);
shaderLib['physical']['fragmentShader'] = fragmentShader;
(shaderLib['physical']['uniforms'] as Map).addAll(buildUniforms);
}