I have a particle age map in the diffuse slot of both a standard material and a V-Ray material.
The standard material renders as desired in scanline (particles color changes over time). The V-Ray material renders with all particles receiving the ‘ending’ color which is incorrect.
Is there some problem with using the Particle Age map in V-Ray?
Thanks!
I should also note that if the standard material with the particle age map is rendered with the V-Ray renderer, the result is the same. All particles have only the ‘ending’ color.
Thanks!
why dont you just render it with scanline?
jacksc02,
Because I am trying to accomplish things in V-Ray so I can learn to use it and the rest of the scene is being done in V-Ray. Those examples are simplified versions and I need the real versions to interact with the rest of the V-Ray scene properly so I’m trying to see if this is a bug or something I’m doing wrong in the setup.
Thanks!
Curious, have you tried render the vray version in the maxFB and not the VrayFB?
Not sure if particle age is in the same issue but maybe http://www.chaosgroup.com/forum/phpBB2/viewtopic.php?t=16211&highlight=particle+material
Well I cant work it out.
Im pretty sure the 2 problems are related.
Im curious if Vlado knows of this one? or if it will be fixed as part of the other fix.
If this is PFlow, then the problem is the same as with the material IDs, since the Particle Age map uses the IDs to find out which particle it is shading. So this should be fixed together with the other issue.
Best regards,
Vlado
Yeah its pflow.
So it should be fixed hey.. thats cool.
Do you want a test scene to confirm? or your certain it will be fine next RC release?
Well, it doesn’t hurt testing it before that, so you can send the scene to vlado@chaosgroup.com
Best regards,
Vlado
Have you adjusted any of your settings for LWF?
File sent Vlado.
If you could just confirm that it has/will be fixed next RC release that would be sweet 
Juju, even with no GI no light nothing it just renders the last color of the particle age map.
Its definitly a bug. Similar to the one that RErender linked to.
Well, I just ran a test on particles for particleage and the results are the same with the particleage in the standard material diffuse slot as well as it in the vraymtl:
The file is here if you want to test it out (I left out Flipside’s Kitchen probe HDR in this file):
It’s hard to tell what is happening without seeing your file.
WTF…
ok looking at your scene now
Yeah you seem to have missed the main point of it… its only when using PFLOW not standard particles
It works fine with standard particles but thats not the point.
Hmm. I didn’t see PFLOW mentioned by him anywhere…
*edit* - I just drank a Red Bull and still don’t see Pflow mentioned anywhere. 
:lol:
Well I had mentioned it. And the post that RErender linked to was for PFLOW and i got the same results as he did.
And in his other post he was talking about using pflow.
So thats how i knew he was using it.
So yeah he didnt mention it in this thread anyway. But thats what he is using
Oh - didnt know there was another post…
Yep
Not about the exact same things but still.
Sorry for the confusion folks. Yes, it’s Particle Flow and this sounds like a known bug. I pretty much use PFLOW for all my particle stuff now but in the meantime, I may have to look into using standard particles to accomplish this until the fix is released.
Thanks for looking into this!
