Transparency not working with Shadow Matte?

[Anonymous]

Besides the awkward way to get the Alpha of the Glasball(only Arnold Material, Transmit AOV,s activated and no Background in Arnod render settings)

The Shadow Matte is on the plane and of course not visible in the alpha channel, but it becomes visible behind the transparent glasball. Is it me or is it a bug?

[madsd · Accepted solution]

Make sure you disable specular transmission on the matte surface.

[Anonymous]

THANK YOU!!! Nice to see that it works and that I can pass this workflow on to my customer.