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Video keying
I have an image that I would like to key video through, but I want the entire image to “squeeze” and “fit” to the shape of the image. For example, using a black picture with a big white circle, I would like a video clip to show in place and in the shape of the white area. I want the entire portion of video to be visible in place of the white, not just the part of the video that fits. I have uploaded the image I want to key. I hope this makes sense, if not let me know and I will try and be more clear. Thanks in advance!
Ok Apparently that picture will not work as it is a white image with an alpha channel. So here is a the same picture but with color so you can view it.
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9 Replies
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I think something’s wrong; I can’t see your picture, can you re-post it again?
If keyinmg thru or overlay is not enough, sounds like what you want is to map the video to 3-d lettering. That’s territory for a 3d CGI program or a compositor, though perhaps there’s a trick in LiveType you could do. LiveType is descended from a program called India, (if I recall right) and one of the neat functions of it was you can build your own fonts out of image-objects.
Can you make another attempt as well to describe in more detail the look you’re trying to achieve?
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OK, I see the shape now, so do you want to have it look like your video is projected onto it?
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It may be more trouble than it is worth but yes that is the idea. If I simply use a track matte key approach, it will only key through the part of the video that fits within the borders of the image but in my case I would like for the video to “mold” to the shape of image and its borders, in this case, to the shape of Georgia.
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Perhaps you could use a morph plugin, but that would probably distort your image. Georgia is sort of vertical and video is horizontal. If you shoot your footage so the important stuff is centered inside GA then the matte approach should work. Rather than squeeze the footage into the matte, the matte could shrink onto the footage.
John
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What about an emboss effect on the holdout matte?
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Yea I am just going to use matte. However would there be a way to do it if say the image of GA was in 3D. Or maybe if the image was of a 3D sphere, could you wrap video around it?
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Yes, what you’d do is, if it was a still, you’d use it as a texture map onto a 3-d extruded solid. Think back to applying decals on your model cars or planes as a kid, same idea.
If you wanted it to be motion video, you can map AVI files onto a 3-d solid. And in fact Aftereffects is pretty good for this job. If you don’t have it, perhaps you can farm out this segment to someone for a small sum.
Or, you might just want to use the deal they have going at Digital Juice and buy a discounted version of Zaxworks, then you could do this yourself, and much more, any time you need it. Might want to pop over there and see the demo.
Zaxworks is for more than flying 3-d type around. If you can save out your state shape as a vector art format, Zaxworks should be able to map your pictures or video onto it. Comes in stand-alone formats for mac and PC platforms as well as an AE plug-in. If I had any after-holidays money to spend, I’d get that for myself!:-)
I’m thinking of how to fake this in Apple Motion, basically, two layers of 2-d art, keyframed the same, the top layer positioned to look like it is applied onto the single-color state shape below, using a key. If you fake a coined edge along the side of the state outline down the camera side, using photoshop, and don’t wobble the angle too much in any direction, you could maybe “fake it” and still look *kinda* 3-d. I’ve done that years ago with shapes of Illinois rendered as a 3-d still then manipulated in 2-d with warping.
I’d rather have the Zaxworks though:-)
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Well thank you very much for your help, things seem a little bit more clear. I like digital juice and the program sounds like it is worth having. In my case however, I work mostly from Final Cut Studio 2 and do have access to Motion 3 and Livetype, however with days like today sometimes I have to move to the PC which has all of Adobe CS3 including After Effects. So I certainly seem to have plenty of tools in my arsenal to do something like that, but having a keen understanding of them in order to effeciently acheive desired results is another story. Again thank you very much for your help, it is people like you that help make learning this industry great!
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Background V1
Black and White Matte on V2
Filler on V3
Apply Modify > Composite Modes > Travel Matte Luma to the V3 clip.Kevin Monahan
http://www.fcpworld.com
Author – Motion Graphics and Effects in Final Cut Pro
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