Yes, I had to apply the subsurf first.
Does volume absorption with gradient texture work with GPU compute? I rendered volume ansorbtion on GPU compute and it didn’t have color. I saw that moony rendered colored in post 4 with GPU compute. Not for me.
I have GeForce GTX 750 GPU and it does allow to render volume. Might depend on CUDA capabilities for a card, idk.
http://www.pasteall.org/pic/show.php?id=97237
I have AMD 7850HD with OpenCl enabled.
Edit:
Volume materials are not supported on AMD cards yet.