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speed trails?

jfiscus

Rap Master
duplicate layer, add motion blur at "correct" angle, erase unnecessary parts of blurred layer. that's the easy way, never seen it look nice though.
 

jfiscus

Rap Master
probably start out with duplicating the layer, cutting out the "moving" object, duplicating it again on top, then blurring the lower layer & removing unnecessary parts in front of the object.
 
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