Fume FX 3.0 Velocity Pass For Motion Blur

Hi Guys,
I'm just wondering if any of you have used the velocity pass of Fume FX in Nuke for motion blur ?

I am outputting exr from 3dsmax with the velocity pass embedded in it and giving vector blur in nuke by loading the velocity info in UV channels,but some how the motion blur which I'm getting is not correct.Does any one has a solution for this ?

Waiting for your replies.

Best
Karan

+1, I'm interested too.

I would like some info on this too.

This is off the top of my head but there are a couple of reasons why the blur is coming out wrong. One could be that the colors of your Fume vectors are inconsistent with what Nuke's blur reads as X and Y magnitudes. Sometimes you have to reverse them.

The other reason could be that the colors are just flat out wrong. If that is the case, just shuffle the colors around.

I apologize for the lack of detail as I don't have any Fume vectors handy to try it out myself, but roughly give my suggestions a try. I hope that helped.

I have and it works

- First you have to cache velocities in order to display them in hte render element
- then in the FusionWorks renderer you have to check Create Channel and motion blur on.

I have issues sometimes (FumeFX 3.5.1, Max2013) when the fume grid was merged from another scene, what solved this here was to create a new fume grid, load the cache, say you wanna adopt the size, etc. then align it to the old grid so it is in the same spot and lastly delete the old grid.

Kind regards,
Anselm

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