Exclusion Issue in CoronaLightMtl

[jop]

Hi,

don't know if it's a bug, CoronaLightMtl exclude feature doesn't seem to work with VolumeMtl assigned objects.

I try to make an emissive object invisible to a local fog with no luck...

I'm using stable Corona 3.
Thanks for your help.

Jop

[jop]

Okay, I found something, I' have actually two boxes to make my fog, a big one bounding the scene and a small one bounding the camera.
I made this in order to have a good behavior, similar to global volume one.

The exclude issue appears when my LightMtl object intersects he small box.

[jop]

no, actually it happens even when not intersecting...

[jop]

Hello,

here is a picture and a basic scene to better explain my issue.

Notice the difference in exclusion with LightMtl vs CoronaLight.

[Vlad_the_rant]

So it's still excluding but differently?

[Vlad_the_rant]

Try it with a single plane.
A sphere with assigned CoronaLightMtl is by far not the same as a spherical Corona light and this is expected since every face of the sphere is a separate light when using a CoronaLightMtl, so what you are seeing is the same as for the corona light (still some slight volume illumination around the Corona Light) multiplied by the number of faces in the sphere.

[jop]

Thanks, indeed it seems similar with a plane.
But the issue that some light still glows remains.