17 lines
749 B
Plaintext
17 lines
749 B
Plaintext
This is a small program that demonstrates various 2D mouse input interfaces for
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control a 3D world-in-hand rotation.
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So far this implements:
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ROTATION_TYPE_IGL_TRACKBALL Continuous, "wrap-around" trackball, as seen in
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AntTweakBar.
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ROTATION_TYPE_BELL_TRACKBALL De facto "Standard" trackball, limited to 180°
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rotations.
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ROTATION_TYPE_TWO_AXIS_VALUATOR Rotate around drag vector by amount
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proportional to drag length.
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ROTATION_TYPE_TWO_AXIS_VALUATOR_FIXED_UP Rotate around fixed up-vector by x
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drag length and around y drag vector by y drag length. As seen in Maya, 3D
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Studio Max, etc.
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More trackball variantes could be snatched from here:
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http://opentissue.org/svn/OpenTissue/archieve/grid3d/OpenTissue/trackball/
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