Blender Git Commit Log

Camera tracking: support refining radial K1, K2 only

This commits adds extra refirenment entry in the menu which is
"K1, K2" and which will apparently refine only this distortion
coefficients.

This would be useful in cases when you know for sure focal length
(which could be obtained from lens, EXIF and so) but not sure
about how good you manual calibration is.

Be careful tho, there're no internal constraints on this
coefficients so distortion model could just screw up into insane
values.