I think I can call my shader finished. Here's a shot without the particles: I almost have the ocean setup done too. Still have one problem to beat. The surface is popping up and down in random places. You can see it in this preview quality test animation: https://kotisivu.mtv3.fi/karppa/anim/...Test5_divx.zip I already have a hunch where the problem is. Just too tired to do anything about it right now Off to bed now... over and out...