Apply override to all materials in scene?

[Richard7666]

What's the easiest way to do this in order to test out lighting in a scene? I just want to apply a basic vray material override to everything (except maybe the windows).

I've done it before but can't remember how and it's driving me nuts!

Thanks, and sorry for the silly question!

[NicoC]

Hello,

Check the Material Override feature in Global Switches rollout (VRay tab).

[Richard7666]

Thanks! That was the one I was after