Category: Rendering
Usually, the halo from motion blur is caused by compositing without pre-multiplied alpha. This means that the RGB value of the transparent pixels are affected by the background colour of that file. Here's a nice workaround in Photoshop, It should be able to be adopt the method to After Effects if linear-dodge is a layer filter option.link
1 comment:
I've never tried it, but for AE people mention John Knoll's free plugin, 'unmult.' It divides the RGB by the A and undoes the premultiplication.
(thanks for the link!)
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