Fresnel Glass Shader First frame, Fresnel default setings on the left hand glass. Simple glass transparency on the right hand glass. Second frame, shaders swapped. Scene file: Fresnel.car Fresnel Dispersion Shader The movie shows the rendering from red to violet of a very refractive (2.24-3.0) and dispersive (0.25) sphere: using _|_ light. (As if viewed through polarizing sunglasses.) The Picture shows the frames averaged together to display dispersion. Scene file: FresnelTest.car A more complicated example, The Stanford Bunny. The Picture shows the frames averaged together to display dispersion. Scene file: Bunny.car