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Motion Blur/Frame Blend Mask? And 3:2 pulldown added in!
I have a roto job where I’m tracking a speed changed car going around a box. I removed pulldown and sped changed it so that I had fewer frames to work with since it was going to be sped changed in the final. did the roto work, but it definitely needs some motion blur or frame blending because it is such a fast move and the tires jump significantly. When i try to add either to the roto’d layer it messes up the masks from frame to frame. Is there any way to accomplish a frame blending/motion blur without it. I’ve tried directional blur but it doesn’t smear the image like I want it to.
Also, should I have removed pulldown and speed changed this before rotoing? Will I get mask problems showing up when 3:2 is put back in? Should I not put 3:2 back in?
Thanks for the help.
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4 Replies
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Did you move the car’s position within AE? Or did you just use a shot in which the car moves and roto it but leaving the footage in one position? If you did not animate the car’s movement it will not work to use the motion blur, it will only blur your masks but not the footage right?
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Right. the car is moving already. I just roto’d it into the scene. I would think there would be a way to repeat and blur those masked frames as is with the mask taken into account.
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After doing the roto, I’d render the movie, then re-import, just so I know what I’m dealing with. To add blur, I might add Force Motion Blur or ReelSmart Motion Blur to the rendered roto’ed clip.
However, knowing clients as I do, I might actually roto all the frames I have, giving us the option to change the speed of the rendered roto’ed clip later with the third-party Twixtor plugin. But that would be up to you.
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thanks!
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