Phoenix 3.05 Foam - Same frame different results

[cashflow]

Hi,

Im running into a wierd problem where the foam renders different every time I render the same frame ( with the same settings ). If you look at he frames closely it seems that some renderbuckets dont seem to render the foam properly. At first I thought this might be a memory problem but my system has 64gig and its not even close to using that.

The simulation itself was done on 3.04 maybe thats the issue ?

[georgi.zhekov]

Hello,

Is this in Max or Maya?
Are you using the official 3.05 build or a nightly one ( if you are using a nightly from which date is it )? Are you using DR?
Can you send us a single cache file along with your scene so we can check it out?

Thank you,

[cashflow]

Hi, Thanks for looking into this :]

These frames were done in max2016 and I'm using the official 3.05. I did not use DR but I did render this in a region via framebuffer just for the test.
Ive put the maxfile along with one of the larger frames on our ftp server - link should be in this post somewhere.
If it helps I also rendered out part of the animation this belongs to where you can see the frames changing.

https://vimeo.com/245744492 pw : foam
Edit : ^ this was rendered on an external renderfarm with 3.05 installed.

http://ftp.mcw.nl/PhoenixFD/Ocean_scene_frame955.zip

[George Barzinski]

Hi,

rendering under water foam properly requires a v-ray plane beneath the simulator (check the quick ocean preset). V-Ray plane "closes" the infinite ocean depth and the underwater foam can be rendered correctly.

[Svetlin.Nikolov]

Yup, in general if you want to use a VRayMtl with fog color, it needs to be applied on a closed geometry, so a sheet of geometry such as the ocean can be "closed off" by using an additional plane on the bottom. This way the Phoenix Particle Shader would also blend correctly with the VRayMtl's fog.

Cheers!

[cashflow]

I feel like an idiot but I did not know that ;]
Renders are looking great now - Flickering is gone - Thanks!

[Svetlin.Nikolov]

Ah, no worriez - that's one of the more cryptic requirements

Cheers!