I have some problem with car material. If I use cube map sometimes it's good but sometimes the cube "disabled". Why? View attachment 14731 TOP is the correct and the bottom picture is wrong.
i suppose that happens when you spend a bit longer time in the viewer, try pressing alt+r and than alt+t to refresh the enviromental cube map. But there are some reflections on the bottom picture
No it happens always on the same place on the track. I drive, sometimes the paint is good then suddenly the paint is get really bright and no live cube.