Rotor view for rotation portion of transformation

[ashandelle]

A rotor representation similar to the 3d quaternion one in the transformation editor

[aaronfranke]

The blocker here is that we are missing a function that converts a Basis4D to a Rotor4D, so we can't get the current rotor. We need to add this function before we can use it in Node4D.

[ashandelle]

I've been working on converting this to 4d, I think I know what the diagonal is but I'm still working on the rest and I don't know how to test it once I do have a full matrix.

[ashandelle]

This is my current theory

The grey means I don't know the sign, the red means I don't know the sign and the minus could be a plus, the signs of the grey and red should be related but I don't know which direction
2^8 total combinations to test

I didn't feel like filling out the rest but for any of the ones in the middle you find the two diagonals it corresponds to and add every combination of the positive indexes

I have no idea if this is correct I basically made it up
The actual paper that found the original is "New method for extracting the quaternion from a rotation matrix" if you can understand it