LuxCoreRender Forums

I'm testing Env cache for an interior.
It seems that Env Cache has some problems with matte traslucent material.
As caches...I'm using just PGI and Env cache.

Matte traslucent


Matte

Is your curtain modelled from a 2D-plane or a solid object?

I noticed recently that matte translucent seems to behave as 1-directional, i.e. it is ignored when the ray comes from the back side of the face. I didn't test how it behaves with caches but might be similar.
See the last post in this GitHub Issue.

when I use matte...I alwasys use a not-closed surface...like a plane.
I don't have thickness for those curtains.

marcatore wrote: Thu Aug 13, 2020 10:09 am when I use matte...I alwasys use a not-closed surface...like a plane.
I don't have thickness for those curtains.

maybe a workarround can be glossy transclucent with high roughness value + two side mode enable.

Sharlybg wrote: Thu Aug 13, 2020 10:38 am maybe a workarround can be glossy transclucent with high roughness value + two side mode enable.

Thank you Sharlybg!

It's working really good..more than matte translucent.


In any case...I think that there is something strange with that matte traslucent material.

when you enable double side don't forget to increase roughness value of the second side too
you can also make the shado color a bit white/grey for better performance.