Hi! I’m quite new to compositing and in the scene I made to play with it, I have several shiny diamonds so, of course, I have enabled caustics. However, I can’t seem to figure out how to get a “caustics pass”. I use mental ray and Render Elements to get my other passes (diffuse, lighting, specular, reflection, refraction, etc.) but how can I get a caustics pass, if there is such a thing? Is it supposed to be included in one (or more) of my other passes?
Edit : Here’s what 3ds max gives when I hit render.
And here’s what I get when I combine the passes.
See what bugs me? How can I get a result close to the one 3ds max gives me with my passes?
I have Diffuse, Direct Lighting (one for each of my 3 lights), Indirect Lighting, Ambient Occlusion, Refraction, Reflection and Specular. Did I forget one? My shadows pass turned out completely black, is it the one that should fix my problem?