NikKelly opened this issue on Aug 13, 2020 ยท 13 posts
ockham posted Thu, 13 August 2020 at 6:08 PM
You mention that YZ are tied after setting Xrot to -90. This is classic Gimbal Lock. The basic problem is that we only need two rotations to reach all angles. Poser and other graphics programs use various tricks (like Body and Hip serving the same purpose) to fakely allow three rotations, but there really aren't three rotations.