Hey guys, I’m trying to track this object in 3d, and could use some help. Initially I had just planned to render a single image out of Blender and just perform a 2d track in After Effects, where I do my compositing. But there is a slight rotation of the object, and I’d really like to be able to perform a full 3d track on it, since it’s an important shot in the video.
Obviously there aren’t many points on here to track. I was thinking I could try tracking the edges of the pink squares, but that might take a while. I was hoping to see if anyone had any suggestions for me that might be easier. I have done some tracking in Blender in the past, but not a lot. I’m very interested in learning more, and will be buying the DVD tutorial in the near future.
The clip is about 4 seconds long, and all the markers are visible throughout the shot, except for the middle marker which is occasionally occluded by the finger at times, as you can see in the reference image.
You need eight markers for a solution so placing your markers in the center of each square won’t be enough. Try tracking the corners of each square. That will give you at least a dozen markers.
I didn’t know that, I was wondering if there were alternative methods that didn’t require more points. I’ll have to look up what those two types of tracking methods are. I’m guessing a 2d track is exactly what it sounds like of course, but I’m not sure what a corner pin is yet.
Since I’m basically just tracking the surface of a plane, do you think it might be possible to use fewer than 8 points to track a planes motion?
Maybe it could help!