Hi!

I'm making a tool that takes 2 similar meshes but have completely different rotation/scale/translate (and topo) and have mesh A match mesh B. I'm good for scale and translate but I need help for rotation:

At this step, I have point A and point B (each coming from different nodes). Both have a normal and a vector pointing perpendicular to that normal. I would like to know how to align point A so it has the same normal and rotate around that N to have the perpendicular vector matching point B's.

If it's not clear, I'll add images later.

Thanks for any help!

-Olivier

assuming your NA, NB, upA, upB are normalized then the rotation matrix will be something like this

Great!

Thanks you.

Now, to learn matrices…

-Olivier