Michael Kaschalk

kaschalk

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Film/TV

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Recent Forum Posts

Velocity Pass in Houdini? May 9, 2011, 5:47 p.m.

I'm trying to use this method to give the object translation value in pixels. Assuming the vector blur data is in ndc space, I would think multiplying against the resolution would give you the desired result, but I don't find a correlation.

For example, I have an object moving 136 pixels in Y. The image is 1K square. The value returning is 0.511 (x1000 = 511)

Any ideas of what's missing, or is my logic completely off?

Thanks!