Wrong motion blur results

[walter_matheosjr]

I have trying rendering scene that contains alembic geometry and yeti node with motion blur, and I get weird results. The geometry does not have the same position of the yeti node but, just in some frames and this only happens when motion blur is turned on.

Anyone knows what's happen or if this a bug, there is a workdaround?



Scene content :
alembic geometry + displacement map + yeti (with displacement map properly connected)

[walter_matheosjr]

I rendered the same alembic and yeti node using Vray for Maya, and I have more precision result, but I still have the color of geometry with more show up

[frame48]

walter_matheosjr Were you able to find a fix for this? Running into the same issue.

[bdancer]

I'll need a test scenes to try figuring this out...
But since Yeti is a third-party plugin we have no control for, may be ask Yeti guys as well?

[Morbid Angel]

I had this issue in maya and yeti before, I am not sure why this is happening in houdini, but you may want to check that the fur has been cached with frame position and substep interval that equals to the cache of the actual geometry.

[bdancer]

> but you may want to check that the fur has been cached with frame position and substep interval that equals to the cache of the actual geometry.

Thanks! Yes, this is probably the only way, since pgYetiVRay has basically only "file" parameter that controls geo loading...

[Morbid Angel]

I can't remember if yeti has a frame interval, I think it was related to that as well, either vray default frame interval is not the same as in yeti, or something along those lines that had to be synced up.