architectural traveling matte
by Mark Kitchens
on
Mar 12, 2008 at 11:44:36 pm
I have some helicopter video footage that I will be using in Syntheyes to create a scene in 3D Max that will allow me to place 3D buildings I've created. At several points a building in the foreground of the video should be blocking my model. What is the best way,using After Effects or other software, to create a traveling matte to separate foreground buildings from those behind my 3D model?
Re: architectural traveling matte by Dave LaRonde on Mar 13, 2008 at 3:17:04 pm
You know, the best place to get this matte right might be in your 3D application. Since I don't use 3D applications, this sheer speculation.
You're using Syntheyes, in order to generate the path for a 3D camera. If your 3D application allows it, you could use the aerial footage as a background in the same way that AE allows a 2D layer to be used as a background, unaffected by the 3D camera.
Not only could you confirm the track that Syntheyes made, you could also create a shape for the foreground building that would track as it's supposed to. Then render it as a separate pass from your 3D building, and do the final compositing in AE, using the separate pass as a track matte.
Now understand, this is all sheer speculation.......
