One-sided VRayLightMtl

[YoyoBoy]

Is there a way to make the back side of a mesh with VRayLightMtl applied to it transparent? The standard VRay material has the double-sided switch, but the VRayLightMtl does not.

[YoyoBoy]

Ah, I figured it out. I put my Mutli/Sub through a VRay2SidedMtl, and set the backside material to be transparent.

[YoyoBoy]

Though it turns out when you do this, your Z-depth pass comes out all wrong.