I want to use a UI mask with a shader instead of a texture. However, not only it doesn't work, but I get this warning:
Material UnmoveableMask (UnityEngine.Material) doesn't have color mask UnityEngine.Canvas:SendWillRenderCanvases()
I tried playing with stencil stuff directly in my shader, but didn't get any satisfying result.
So, is the UI Mask component supposed to work with custom shaders?