I’m getting close to ready to finish a project and I’m backed into a corner.  I’m using MR with a Parti-Volume render shader on a direct light with an animated projector map...it’s a forest near sunrise with light filtering through the leaves.  Of course I’m not using geometry to cast leaf shadows, it’s just a tricky map I created for the job.  The problem is that the free X-frog trees I’m using have leaves that are mapped, and where the leaf material is transparent it does not redner the parti-volume beams I’m projecting.

The attached file shows the problem: there are dark fallen-leaf colored polygons around the leaves seen in the lower-left third which should just be light-beam.

I think I want to assign a new material to my tree-leaves that’ll play nice with MR, but I have no idea where to begin.

Can you please help me?

drew

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Recreate the leaf material as an A&D material. Be sure to use the Cutout Opacity map to map it’s opacity, not the Transparency.