quakeforge

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Author	SHA1	Message	Date
Bill Currie	efaef89c5f	Add a shortcut function for quaterion/vector multiplication. I got the idea from blender when I discovered by accident that quat * vect produces the same result as quat * qvect * quat* and looked up the code to check what was going on. While matrix/vector multiplication still beats the pants off quaternion/vector multiplication, QuatMultVec is a slight optimization over quat * qvect * quat* (17+,24* vs 24+,32, plus no need to to generate quat).	2012-04-26 09:48:08 +09:00
Bill Currie	12e238f806	Add a function to convert quake angles to a quaternion. The test works by comparing the result of AngleVectors with forward, right, and up vectors rotated by the quaternion resulting from AngleQuat.	2011-09-04 09:58:12 +09:00

Author

SHA1

Message

Date

Bill Currie

efaef89c5f

Add a shortcut function for quaterion/vector multiplication.

I got the idea from blender when I discovered by accident that quat * vect
produces the same result as quat * qvect * quat* and looked up the code to
check what was going on. While matrix/vector multiplication still beats the
pants off quaternion/vector multiplication, QuatMultVec is a slight
optimization over quat * qvect * quat* (17+,24* vs 24+,32*, plus no need to
to generate quat*).

2012-04-26 09:48:08 +09:00

Bill Currie

12e238f806

Add a function to convert quake angles to a quaternion.

The test works by comparing the result of AngleVectors with forward,
right, and up vectors rotated by the quaternion resulting from AngleQuat.

2011-09-04 09:58:12 +09:00

2 commits