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View Full Version : Superimposing 3dmax Animation Over Live Video, How?


KONEE ROK
01-16-2002, 05:29 PM
PLEASE HELP

Chris
01-16-2002, 06:02 PM
Not much information in your post :)

its called 'compositing', you can do it in Max with the video post (check the online help or the Manual, its got loads of info on it)
But your probably better off doing it in a stand alone application designed to do just that, eg Combustion or After Effects.

You can generally do it by rendering your image out with an alpha channel, which defines the transparent areas of your image, so the underlying video footage shows through. You have to save the rendered animation in some format which supports alpha channels. This also depends a bit on the software used to composite it together:
for example, if you were compositing with Combustion, you might save out RPF (Rich Pixel Format) frames, with the Alpha channel & Coverage channel checked (coverage gives you anti aliasing on the edges of objects - which gets rid of any coloured 'rim' when ompositing)
or if ou were compositing with After Effects 4.1, you might want to save out TGA files with an alpha channel.

in the compositing application, you just lay the rendered frames over the top of your existing video, the alpha channel should make the correct bits of the underlying video show through...

:)

KONEE ROK
01-17-2002, 12:36 PM
thank yu

jais
08-14-2004, 03:57 PM
Is it possible though, to do over LIVE!!!! video.

Like a webcam streaming.

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