Caustics pass in 3ds Max 2014

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  07 July 2014
Question Caustics pass in 3ds Max 2014

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?

Last edited by ThiaD : 07 July 2014 at 02:19 PM. Reason: Added images
 
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