If requests are being taken, I'd love to see a video or two on how to create an animated selection based on the different source color and texture inputs.
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Hi Guys,So I have setup a forum here:http://www.sawberry.com/bbs/It links to the archive stuff. Plus allows posting on the threads which mirror the threads here.In a few days this forum will close so this is my attempt to keep things archived and also allow the community to continue.The way it is setup makes it difficult to search but i'm working on that in the meantime. The basic is to preserve the knowledge from this site and search will come later just i have a day job also so I can only get…
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I have played now I need some formal guidance.
The trick with traveling mattes is that the local and global growth options are based on mouse positioning at mouse down and subsequent movement to define the range of selection. And those parameters are what gets interpolated when you keyframe the selection operation in a PASeq timeline. The global color growth option records the actual color and color range used for the selection, and interpolates that in a timeline.
There's a new growth option we've been playing with called local path that is in 4.02 for source selection growth. You draw a path and the selection is based on the color sampling across the entire path. For that one the path is what gets interpolated between keyframe positions.
The lasso selection is pretty straight forward for keyframe interpolating. The one thing to keep in mind is to maintain rotational symmetry as far as how the lasso region path is drawn over time. So if you draw in a region using a clockwise outline, do the same thing for your other keyframes. If you switch to going counter-clockwise for the next keyframe then the 2 lasso paths will interpolate in an undesirable way. You can watch the selection interpolate to see what i mean by this.
My big issue is I don't have an time cost effective strategy for creating the matte in Studio Artist. I think I know how to do it on a frame by frame basis but that's more time than I'd like to spend on that task when faster alternatives are available. The shape of the bus doesn't change very much for most of the shot (save for the front of the bus and the back of the bus both appearing and disappearing at different points)
As I started working through this problem, I realized that I don't have a very good sense of how to use the selection tools well with video. In the training video the selection created is used for a single image. I'd like to see a training video that explores/explains how to use the selection tools on an image sequence /video clip.