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Connecting MotionBlur
To connect MotionBlur:
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1.
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Select Filter > MotionBlur to insert a MotionBlur node after the clip you want to add motion blur to. |
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If your sequence is composed of a foreground object moving over a background, the motion estimation is likely to get confused at the edge between the two. To fix this, add a matte of the foreground region to the Matte input. Then, use Matte Channel in the MotionBlur controls to select which component of the matte to use. |
This forces the motion of the foreground to be calculated separately to the motion of the background and so should produce fewer artifacts in the motion blur.
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If the motion in your input sequence has been estimated before (for example, using VectorGenerator or third-party software), you can supply the motion vectors to the Background Vectors (BgVecs) and Foreground Vectors (FgVecs) inputs to save processing time. |
If you have separate vectors for the background and foreground, you should connect them to the appropriate inputs and supply the matte that was used to generate them to the Matte input. If you have a single set of vectors, you should connect it to the FgVecs input.
Note that the BgVecs input only appears once you have connected all the other inputs.
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4.
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Attach a Viewer to the output of the MotionBlur node. |