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rotoscoped extrusion
hello,
ive got some live action footage of someone walking to the camera with arms moving.
ive rotoscoped it and want to extrude it as a shape as it moves. also i want the extrusion to tapper off at one end. ive mapped i on a sweeped nurb with its alpha but as the alpha has
no geometry so it has no extrusion depth… hope that makes sense.
i’m thinking the only way is to export the bizier path information from the rotocoping in aftereffects, frame by frame, using that as a spline on a sweep nurb and flicking between models.basicly all i would like to do is extrude a movie with an alpha and have that extrusion
tapper of at one end.any good ideas would be most appreciated
cheers
trev -
3 Replies
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If you have Advanced Render or finalRender, you can use subpixel displacement perhaps. You might also consider morphing between spline shapes to minimize the number of steps you have. The simplest way would be re-doing some of your rot-work using PLA on the tracing splines.
Mylenium
[Pour Myl
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Hi trev, you can do that with the “Di Contour” plugin from DiTools.
In “texture difference” mode it acts just like the vectorizer spline generator in Cinema 4D, only that you can use animated textures. All you need is a b/w movie with your alpha information… I think there’s a working demo of DiTools. Tell me if you need more help.Take care, -gerardo-
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hi gerardo,
thanks for advice, sounds just what im looking for.
finding it hard to find a place to download it for mac though..
any tips?cheers
trev
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