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MotionBlur on Pyro - How?

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  • MotionBlur on Pyro - How?

    Hi,

    I made a simple Pyro sim with Pyroburst and the SOP Pyro Node.In the export Tab of the Pyro Solver I covered all Volumes to VDBs.
    I have not resampled the velocities.

    The Fire and Smoke render fine in V-RAY 5 but I don't find the right way to render MotionBlur on it.
    Which are the correct steps for that?

    I have a Physical Camera with MotionBlur enabled, long Shutter time and I also activated (like in Mantra) on the Geometry container "Velocity Blur".

    A vel vdb is available on my final node.

    Do I miss something?

    Thanks a lot

    Helge

  • #2
    Hey pixeltrain ,

    Could you try cranking up the Motion Blur Multiplier on the Volume Grid Shader's "Rendering" tab to see if that changes anything?
    Off the top of my head, I can't think of a reason for motion blur not to work based on the description of your setup.

    Best regards!
    gosho.genchev@chaosgroup.com

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    • #3
      pixeltrain ,

      Scratch that The resulting velocity field is of type "vector" - we need 3 float fields instead. You could use a VDB Vector Split SOP to resolve this.

      Best regards!
      gosho.genchev@chaosgroup.com

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      • #4
        Thanks!

        Good point, instead of using the "built-in" convert to vdb tick, I do it afterwards now with Convert VDB - and it works like expected!

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