- const DepthTest *get_depth_test() const { return depth_test; }
- const Blend *get_blend() const { return blend; }
+ const DepthTest &get_depth_test() const { return depth_test; }
+ const StencilTest &get_stencil_test() const { return stencil_test; }
+ const Blend &get_blend() const { return blend; }