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Motion vector and RSMB problem
hi there,
i got a problem with rsmb in after effects using motion vectors. blurs are appearing where they should not be. when i turn down the max displace value the effect becomes weaker but only disappears at zero. i used motion vectors within c4d 11.5 with a vector scale of 32. i am using 16-bit output.
here is a picture and an animation that shows the problem:https://abi2000vier.de/funken_test.jpg
https://abi2000vier.de/funken_test.mov
any idea? thanks
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2 Replies
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I think that’s just how RSMB works, cause it can’t tell which pixels are actually moving underneath what..
I think the way to go would be to mask out the overlaying stucture.. using the object buffer and apply RSMB to a separate layer underneath.
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Hey mate,
Just figured this one out. Sometimes the Vectors pass doesn’t render with a correct alpha – check that AE is recognising the alpha, if it isn’t, it’ll just appear as a black background, which stuffs up RSMB.
Solution:
Put an Extract effect on the vectors that are precomped – set the black point to 1, making all pure blacks transparent.Should all work now!
Luke
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