Lighting Foliage Alpha Planes

atomander

Hey Folks, a question about lighting double-sided alpha planes in marmoset. I have a tree model where I've tagged all the alpha planes as "double-sided" in max. However, when bring this in to Marmoset, the planes only seem to have the original face normal. Turning off "cull back faces," I can see the planes facing away from the camera, but they aren't getting lit correctly. Do I need to physically double up the geometry/flip the face normals before importing to marmoset, or is there a setting in marmoset that can use max's double-sided material tag?

EarthQuake

From what I understand, disabling backface culling does give correct lighting on the reverse side. Many engines/or shaders do not provide correct lighting on backfaces, however I'm almost positive we do as this feature is often used for hair planes which appear to be lit correctly.

You can test the manual duplication method to double check, but this will likely cause artifacts with the shadow system.

atomander

I guess another factor might be that these planes have edited vertex normals? Would that make a difference?

Odow

I have similar issues can't get good result with handpaint low poly in marmoset.