Lighting Effects in Photoshop CC - greyed out
This seems to discussed but lots of confusion or no direct answer how to resolve.
I use 8 bit & RBG - how do I install it. My PC is running windows 8.1 and I think my graphics card is an HD 4000
Can you use any of the other 3D features?
If not, have you checked Help -> System Info to see what Photoshop knows about your video card? And have you updated your video card driver from the GPU maker's website?