Hi,
I have attached a nice neon sign to my scene. I set 3 materials to “light function”. Afterwards I assiged them to the 3D object. It looked really great. But after the Lightmass calculation the materials are now completely grey. The light function no longer works.
What is going on there?! Could this be a bug?
Best regards, Andreas
UPDATE:
I had to change the object parts with light materials to moveable. Then everything is ok.