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Could we have something a bit more to the specific topic? |
Mike Stramba (talk | contribs) No edit summary |
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It seems that [[Blender (software) | Blender]] uses quaternions to represent rotations; perhaps that would provide some assistance from the [http://www.blender3d.org/cms/Development.81.0.html Blender documentation]. [[User:M.e|m.e.]] 05:38, 16 October 2006 (UTC)
Ya, *unfortuneately* (from a user standpoint), Blender does use Quats for "bone" rotation representation in the "IPO" (graph) editor.
== Book Description and zy rotation ==
I changed some of the description for the initial "book" example, it appeared to me that the "spine direction" description was incorrect. If I have changed it incorrectly, please advise .. (and I'll be confused :) if so).
Also in the description of "In fact, the composition zy represents a single rotation of 180 degrees about the [-1 1 0] axis", does that imply from [0 0 0] to [-1 1 0] ? I assume so, as otherwise I don't understand how an axis can be defined by a single point:) .. Unless it's more "understood" math terminology that I'm not familiar with :)
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