Rendering Particles And Fluids Together

[atog007]

Hi, I have actually some serious problem rendering fluids and particles together on a scene I'm working on. I have a fluid (a lava flow) intersecting with particles (smoke), and the rendering don't behave as it should, it render some part of the fluid "on top" of particles.

Here are some example screenshots (particles are very shematic here, but it behave the same with others particles), you see where is my problem :

Compositiong is NOT an option, as the scene will be rendered for stereoscopic projection, and there are some overlaping of fluids/particles/scene, so compositing will be a real pain. I think using particles in conjunction with fluids is a very common thing, so I hope it's a well known bug or an error of me. I've played with the camera near/far clip plane, and the auto render clip plane, and tried a lot of setting of particles/fluids/render settings, and i can't find any clue about this.

I've been able to reproduce this error in a simple scene, here is a link if anybody could give a try

http://mfoucher.free.fr/data/Fluids\_Particles.mb

Should be a camera setting or something like that imho, but i'm searching for 3 days now, i'm so annoyed
Thx.

[atog007]

Sorry, just figured out that the answer was on this forum and i posted before searching (shame on me, but i was so annoyed), I had to check the renderstats/Volume sample override box in the fluids shape and increase the volume sample.

[atog007]

I'm having another problem with the particles intersecting the fluid, the fluid takes particle color on the intersections, even when the particles are set to density 0 and transparency 1, we can see spots on the fluids like here :

Maya6.5 scene file:

http://mfoucher.free.fr/data/Fluids\_Particles02.mb (~frame300)

As the smoke on my scene is very transparent, we can see ugly lighter spot on the lava flow, I've tried to set the color to 0 and using the incandescence to give a grey tone to the smoke, but it do the same. If the color/incandescence of the particles cloud are set to black, I don't have black spot on the fluids, but when one of them is non-black, it lighten the fluids . Any clues ?

Thanks.