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Blocky Smoke Render from motion blur

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When I enable motion blur I get lots of strange blocks. I have spent a long time trying anything I can to get rid of this. Not sure why this is happening. Not shadows on this. Just rendering density.

Anyone have any ideas what the problem might be from?

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Someone posted something like this recently and said his problem was because his camera had a scale on it.

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Someone posted something like this recently and said his problem was because his camera had a scale on it.

My camera is scaled (buried inside a scaled imported FBX file). I will look into that. Thanks!

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Hey Bandini

This is something sesi posted as a solution to a similar artifact,

1) Add the 'vm_velocitybounds' parameter (in Mantra/Shading) to the object and set it to the maximum velocity value, in units per frame (not in units per seconds like the "v"/"vel" attribute).

Maybe this could work ?

Cheers

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Neither of the suggestions in this thread worked for me, unfortunately. I will hopefully be able to send the problem to sidefx support and see what they say. A bit busy at the moment though... Have to render without motion blur until I can figure this out.

Thank you for the help!

Hey Bandini

This is something sesi posted as a solution to a similar artifact,

1) Add the 'vm_velocitybounds' parameter (in Mantra/Shading) to the object and set it to the maximum velocity value, in units per frame (not in units per seconds like the "v"/"vel" attribute).

Maybe this could work ?

Cheers

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