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by romwell
590 days ago
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Yes, and it has the path independence property, as well as the ability to arrive at any orientation with a single drag. But hey, most implementations talk about using quaternions, which scare people. And so the author of the article (...and a lot of software) is completely ignorant of how e.g. 3DS Max, Maya, etc do it. FWIW, here's a proper arc ball implementation. Try it vs. your favorite 3D software, and by God, implement it in yours: (Demo requires mouse) https://romankogan.net/math/arcball_js/index.html |
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