void UberShaderProgramBase::release()
 {
     releaseShaders();
     unreg();
 }
 UberShaderProgram::~UberShaderProgram()
 {
     releaseShaders();
 }
 UberShaderProgramBase::~UberShaderProgramBase()
 {
     releaseShaders();
 }
 RocketRenderInterface::~RocketRenderInterface() {
   // Note, vao, ibo, etc are already released by libRocket (see
   releaseShaders();
 }