Advice for difficult corner pin?
Posted: Sun Sep 26, 2021 9:17 pm
I'm having trouble with a compositing task and I would love it if anyone could recommend any tips or tricks I might not have thought of so far. I'm compositing an image onto a wall as graffiti, and there are a few things about this particular case that are giving me a bit more trouble than usual.
First of all, there are no markers in the footage, and we have no information about the real world dimensions of the wall I'm compositing onto. Second, I have to do the same composite into at least 6 different shots that are all different angles, and some never have the entire wall in frame. Third, the only points/lines that I can use to eyeball the corners of the corner pin are not where the corners of the comped image will end up, and consequently the aspect ratio of the corner pin region is not the same as the image I'm putting there. And finally, since the composite image is hand drawn text, it has no genuinely vertical or horizontal lines that I can use to try to visually line it up with the real world parallel lines.
Here is an example of a couple shots that I've done the tracking for, as well as some more difficult ones I haven't worked on yet. This example text might be low enough that it might not be visible in the two closer shots, but the text that will actually go in these places will definitely be visible in the shots I haven't worked on yet.
Any advice on how to get all these comps consistent? I'm thinking I might have to make a new image that's the exact same size as the image I'm comping, but full of squares. Then I can adjust that until they look like squares again, then switch out that media for the lettering.
For what it's worth, I don't expect this to be easy, but I also don't expect it to be impossible. Any help is greatly appreciated. Thanks.
First of all, there are no markers in the footage, and we have no information about the real world dimensions of the wall I'm compositing onto. Second, I have to do the same composite into at least 6 different shots that are all different angles, and some never have the entire wall in frame. Third, the only points/lines that I can use to eyeball the corners of the corner pin are not where the corners of the comped image will end up, and consequently the aspect ratio of the corner pin region is not the same as the image I'm putting there. And finally, since the composite image is hand drawn text, it has no genuinely vertical or horizontal lines that I can use to try to visually line it up with the real world parallel lines.
Here is an example of a couple shots that I've done the tracking for, as well as some more difficult ones I haven't worked on yet. This example text might be low enough that it might not be visible in the two closer shots, but the text that will actually go in these places will definitely be visible in the shots I haven't worked on yet.
Any advice on how to get all these comps consistent? I'm thinking I might have to make a new image that's the exact same size as the image I'm comping, but full of squares. Then I can adjust that until they look like squares again, then switch out that media for the lettering.
For what it's worth, I don't expect this to be easy, but I also don't expect it to be impossible. Any help is greatly appreciated. Thanks.