 OT: Math Question ... |
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| SirAndy |
  Dec 30 2004, 11:21 PM
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Resident German  Group: Admin Posts: 41,640 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California  |
stupid question (what else is new) ...
while working on my 3D-Editor/Game Engine i came to realize that the default Rotation Matrix for OpenGL uses a counterclockwise winding for Rotations around the Y-Axis (Yaw), meaning if you look at a Object in the XZ Plane a Positive Angle will Rotate the Object Left, a Negative Angle will Rotate it Right. This is Counter-Intuitive and i am wondering if there is a rule for this behavior in a Cartesian coordinate system or is this merely a "personal preference" for OpenGL ??? My editor currently uses the clockwise approach, where a positive angle rotates the object to the right instead, which seem much more intuitive. searching the web, i have found both approaches, but i would like to know if there's a "corret" way to do it ... (IMG:http://www.914world.com/bbs2/html/emoticons/type.gif) Andy |
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Posts in this topic
SirAndy OT: Math Question ... Dec 30 2004, 11:21 PM
dinomium polar coordiantes are mesured anti clockwise... Dec 30 2004, 11:32 PM SirAndy ... Dec 30 2004, 11:44 PM dinomium two quotes for you:
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I ... Dec 31 2004, 06:30 PM kwales Sor Ahndie...
Is this code going to be used in th... Dec 31 2004, 06:33 PM
SirAndy Dec 31 2004, 07:35 PM  |
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