Light Select Render Element with Vray Light Material object

V-Ray V-Ray for Maya General
1

Hopefully there is a trick to this. So I can select Vray lights and place them into a Light Select group for compositing later. However I have a piece 3D geometry with LightMaterial attached. This is emitting light onto the wall around it. Is it possible to capture this into a seperate render element as well. I’ve tried dropping the object into a Light Select group but renders the pass as black. Maybe a simple way to handle this… quick answers welcome :slight_smile:

Just to confirm, I’m not after the actual object itself as the Self Illumination pass captures this, just the light bouncing on the surfaces around it, same as a standard vray light and Light select pass.

2

We don’t support this right now. I guess you could mimic this behavior by just rendering a separate pass with only the lightMtl objects emitting light.

3

Ah yes thank you for letting me know, just in case I was missing something. I did what you have suggested in the end. I always Divide my Lighting Element passes by the Diffuse element so I also get a RawLighting pass for free, then multiply that over the diffuse pass once again to get a clean composite, so this workaround works well for now.

Thank you