Hi,
I am using constantly Mocha 4-corner tracks in Nuke (CornerPin node) to track a still frame into a shot. (or a part of it)
I track a shot in Mocha, export a CornerPin node and paste it into Nuke.
The four corners track/distort the image throughout the shot. On the reference frame you keep the transform TO and the transform FROM values identical (no distortion).
I would like to so the same in Flame.
I export from Mocha the 4-corner tracks and load them into the 4-corners of a bilinear. I can do the same trick like in Nuke in flame and copy the tracking data to the UV channels and only keep the reference frame values on one frame. Then I also don’t have any distortion.
The problem is the the 4-corners are the boundary of the frame in flame. In Nuke the four corners are just transformation data as you can see on the screenshot.
I guess a workaround in Mocha could be to place the 4-corners on the corners of the image resolution.
Is there a way to in flame to copy the workflow from Nuke?
After you copy the animation to the UVs, you should be able to switch to the Move UV/Vertex tool using shift-u and then scale the vertices of the UV to create a larger canvas so that your image isn’t being clipped by the edges of the surface.
Edit: Someone will likely point out that the smoother way is exporting your tracking as a gmask tracer with axis from Mocha, loading that setup into Flame and using the axis to distort and undistort a surface in action as an axis has a built in invert toggle.
@toodee I reread your post and I think @ytf has the actual answer you were looking for setting a single frame reference to extend beyond the geometry extents.
Yes, I think the “Crop” button is doing the trick! This button reminds me of the Project3D node in Nuke. Every time I forget about the enabled crop