I am not using a cloud shader on opacity, just a simple grey to black colour gradient. I am using a black, grey and white crater texture on blob map - but surely that couldn't be the problem or otherwise the particles would display the error during their whole lifespans.
I have also used particle samplers on colour, transparency and incandescence on the particle cloud shader.
Thanks
Last edited by 3dBloke; 09-09-2007 at 08:07 PM.