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Attn: Math Types. Quaternions.	by williamashbless	2004-10-22 14:14:59
What can you guys tell me about quaternions? I've been reading my way around the web, but derivations are a little confusing where they exist at all. Multiplying and adding two hypercomplex numbers with the correct relationship between i, j, and k don't present any sort of a problem in itself, but I fail to see a way to prove that the multiplication actually correctly combines two quaternions into one representing the overall rotation and scaling of a vector. I also still can't easily see the relationship between the coefficients and the parameters necessary to adjust a vector, and it eludes me how to perform the quaternion operation on a vector. I can implement them with the material I've found, but that's a far cry from understanding why they work. Any hints?
[ Reply ]
Head go boom.	by sofaspud	2004-10-22 14:35:38
I'm the same way. (n/t)	by Glytch78	2004-10-22 14:45:13
Remains of brain leaking out ears...	by sofaspud	2006-11-19 12:55:59
Note to self: Read web material on quaternions	by bwkaz	2004-10-22 14:36:31
OK, never mind, I don't think I can help.	by bwkaz	2004-10-22 15:29:25
Uh, wondering where 4d points came into it.	by williamashbless	2004-10-22 15:35:22
Well... I meant "point" as in	by bwkaz	2004-10-22 17:46:36
I'm ashamed to say that	by Llyr	2004-10-22 16:59:59
ARRRGH!	by williamashbless	2004-10-22 17:05:44
heh (n/t)	by Llyr	2004-10-22 17:39:29
Please do.	by LionsPhil	2004-10-22 19:09:39
That rings a bell... Ray tracing uses it IIRC.	by kahuana	2004-10-22 19:35:12
And now I shall _read_ your post... :-)	by kahuana	2004-10-22 19:44:43

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