deforming mesh, motion blur and VrayProxy

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

I have animated deforming mesh. When rendered with motion blur I get artifacts:

so I export it to animated VrayProxy and get something like this:

The same behaviour in max 2016 and 2017/Vray 3.40.01

Any thoughts?

geometry.jpg
geometry.jpg1280×720 139 KB

proxy.jpg
proxy.jpg1280×720 108 KB

2

What kind of mesh is it (mesh or poly)? How is the mesh animated? Does it work better if you point-cache it?

Best regards,
Vlado

3

Mesh is animated by morphing and skin modifier.
I didn’t try point-cache…
I can send files tomorrow if you wish…

4

Vlado - I send link to files to support@chaosgroup.com

comparison.jpg
comparison.jpg1280×720 159 KB

5

Thanks for the scene, it looks like there is something wrong with the Vertex Weld modifier or the way we handle it.
I completed a few sequences without it and it looks like it renders fine without it, would you please try to disable it and see if the issue disappears?