Almost every material renders matte gray

[jkontiola]

Im having a weird issue on one specific file. I click render and the rendering starts normally and everything looks good, all the materials seem to render fine. Then suddenly all materials turn to gray. Anyone else had this problem?

[poseidon4o]

jkontiola is it possible to upload the scene, so we can check what the problem is?

[jkontiola]

https://www.dropbox.com/s/erx0ev2pln...ked.blend?dl=0

Here you go. Thanks in advance!

[jkontiola]

I found the reason myself. Apparently GPU rendering does not support very many features that work on CPU rendering. Its a shame. CPU so much slower but so much better features.

So on CPU rendering my scenes work but render pretty slow. On GPU most materials render white :/