Hi,
I'm in the progress of developing some scene manipulation widgets. When implementing a scale manipulator I found out that the decomposition behaves not as I expected.
If I try to decompose 2 Matrices which are nearly the same I get a result scale vector that has switch axis. Here's an example:
Matrix 1:
1.040 -1.040 0.000 0.000
0.707 0.707 0.000 0.000
0.000 0.000 1.000 0.000
0.000 0.000 0.000 1.000
0.707 0.707 0.000 0.000
0.000 0.000 1.000 0.000
0.000 0.000 0.000 1.000
Result 1:
Rotation 0, 0, 45
Scale 1.47031, 1, 1
Scale Orientation 0, 0, -0.382683, 0.92388
Matrix 2:
1.046 -1.046 0.000 0.000
0.707 0.707 0.000 0.000
0.000 0.000 1.000 0.000
0.000 0.000 0.000 1.000
0.707 0.707 0.000 0.000
0.000 0.000 1.000 0.000
0.000 0.000 0.000 1.000
Result 2:
Rotation: 0, 0, 45
Scale: 1, 1.47986, 1
Scale Orientation: 0, 0, 0.382683, 0.92388
Has someone an explanation for this?
Thanks,
Michael
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