Yeah I looked at this one and the one on the Planetside YT in the Terragen for VFX series, and still couldn't get it to work, tried it again yesterday with a new object just to make sure. Probably something I'm not getting but I found the terratuts vid on using a powerfractal/image inside the shader and that looked much more flexible to work with. Have to find the time for it now tho xd.