Artifacts with CoronaLightMtl

[telemix]

Strange artifacts appear as black triangles on a self-luminous material with a grid bitmap or other contrast textures.

After many tests it turned out that they occur in the following cases:

-specific bitmap contrast in CoronaLightMtl (where black pixels RGB=0)
-many faces of geometry
-render view from afar

Test scene link (max 2014):
https://cloud.mail.ru/public/GfLJ/GwB2q6RhE

[telemix]

test

[maru]

I remember this was an issue some time ago but I thought it was fixed. Thanks for a detailed report. Ondrej will have to take a look at this.

[maru]

Fixed in the newest daily.

[telemix]

Great!