I am very new to Blender and I'm trying to use the BGE to simulate some interactive optics experiments. I need to model a lens which is made up of a definite refractive index and of a desired focal length. The prism too should be of a definite refractive index. I am able to model the lens and the prism in Cycles Render but to make the experiment interactive I need to model them in the BGE, but I do not find the same material options in the Blender Game Materials panel. How do I proceed ahead?
As of now I do not need the dispersion, I only need the refraction to form images (virtual images or real images) on a screen.