Travis Cobbs Wrote:Being honest, Tim answered the question fully, and my response here is perhaps redundant, but I'm trying to answer it using different phrasing that may (or may not) be easier to understand.
The more answers, the merrier
And I think your explanation is better.I should note that with my background (maths and physics) I tend towards the 3x3 + 3 interpretation. But the 4D notation certainly has its benefits and is popular with 3D graphics people for a reason.
Tim