3 ms·
Quanternions' ubiquity is relatively recent. Rotation matrices ruled supreme in games and graphics and it was only after concerted effort to abolish R's were Q'
by jvanderbot 5y ago
Quanternions' ubiquity is relatively recent. Rotation matrices ruled supreme in games and graphics and it was only after concerted effort to abolish R's were Q's made ubiquitous.
Two heartbeats later, we're bearish on Q's.
- joppy 5y agoRotation matrices are still ubiquitous even in systems which use quaternions: if you want to apply a dense linear transformation to a vector (be it a rotation or otherwise), pretty much nothing will beat (in terms of speed) a matrix-vector multiplication. For instance even if you work out the rotation matrices using quaternions, an engine will end up shipping a rotation matrix to a graphics card to actually transform the bulk of vertices in a scene.