fluid rendering problem

[geroglifico]

Hi, Im trying to render a sort of nebula type created with fluid but im having problems with the alpha, when I bring in my render into after effects and choose premultiplied, it takes away al the color. I have tried also using that as a alpha trackmatte of a straight image but its chews a lot of my actual image, does anybody know a way around this, or how to proper render the fluid with a proper alpha????

thanks in advance to anyone that can give me a hand.

[Juankee]

Hey Gero, I'm not sure if this might help, but I'll shout it out anyways. I had similar problems in Shake when I tried to comp a Maya fluid effect over a real landscape. The solution that helped me was in the render options. I don't know if you've done this, but you can uncheck a premultiplication option. If you're using Maya Software to render, the option is found under the drop down menu Render Options. If you're using Mental Ray, it's found under Frame Buffers. I know that this helps with removing the black outline fluids have when you render them, let me know if helps you with the "graying" issue.

[ipranawake]

im working on this too ....

[fluidedge]

when you bring maya IFFs into After Effects choose Unmatted rather than premultiplied.