Particle Flow - instanced geometry's Vertex Colors not visible to Vray?

V-Ray V-Ray for 3ds Max Issues
1

Hello!

I just noticed a problem with the rendering of Pflow instanced geometry with assigned vertex colors (using Vray 1.5sp3a):

Vertex colors are somehow lost on the particles.

And they render fine using Scanline. Compare the attached jpgs. Only thing changed was the renderer. The big plane on the left is the source geometry and it renders fine in both Vray and scanline. The small ones are the Pflow particles. Same thing happens using Standard mat and Vray mat.

Maybe this bug is easy to fix?

Regards,
Thomas

VC_scanline.jpg
VC_scanline.jpg640×480 12.5 KB

VC_vray.jpg
VC_vray.jpg640×480 12.1 KB

2

I could be wrong but I seem to remember vlado saying that when you use instances in pflow, vray reconstructs the mesh itself - maybe it isn’t taking along those values?

3

I just tried this and it doesnt seem to be working.
I have attached my file to show whats going on.

Hopefully its not a major issue to fix.

Max 2009 XP64 VRay1.5sp3
PFLow_vertexpaint_issue.zip (21.5 KB)