projection mapping node in GPU

[andybot_cg]

It's broken, see attached.

[poseidon4o]

For now the GPU does not support all types of Projection. But you can achieve the same effect using TriPlanar texture.

[andybot_cg]

That doesn't seem to map the same. Also, there seems to be some sort of overlap at the transitions instead of a clean change-over.

[andybot_cg]

OK, I was able to get roughly the same effect between the CPU and GPU. Seems that UVW transformation node does not work in GPU. There's also something slightly off with the GPU triplanar mapping - you can see swatches of reddish color over in the green area.