Ornatrix and hair velocity

[chib]

Hi,

It seems that Ornatrix hair with VRayOrnatrixMod doesn't output velocity data in VRayVelocity renderelement, did I miss a parameter somewhere? Camera MB has an influence on hair velocity data but neither object transform nor deformation (skin, etc.) output correct values (null or corresponding to camera movement).
thanks,

Paul.

[tashko.zashev]

Hi,

For the moment you can achieve correct Velocity element by using "Mesh from Strands" modifier.
Note that you have to turn off the camera motion blur in this case!

[chib]

Thanks,

Actually we already tried to convert hairs to mesh but it's not as memory effective as hair primitives (among other things), and we can't afford to render thousands / millions of strands converted to mesh. That's also why we picked Ornatrix in the beginning (we were using Hair Farm before).

Paul.

[tashko.zashev]

Hi again,

I want to inform you that this issue is in our Bug tracking system.
I hope it will be fixed soon.