Real-Time Physics Simulation Forum 2013-12-04T14:38:45+00:00 https://pybullet.org/Bullet/phpBB3/app.php/feed/topic/9599 2013-12-04T14:38:45+00:00 2013-12-04T14:38:45+00:00 https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=32322#p32322 <![CDATA[Controlling a rigid body from user input]]>

Code: 

//mousePosition is the relative position of the mouse, (0,0) is the upper left corner and (1,1) the lower right corner//left/right rotation, I substract 0.5 to get a number between -0.5 and 0.5float rotationOverY = mousePosition.X - 0.5;//up/down rotationfloat rotationOverX = mousePosition.Y - 0.5;btVector3 angularVelocity = btVector3(rotationOverX,rotationOverY,0);myRigidBody->setAngularVelocity(angularVelocity*100);//the velocity is set back to (0,0,0) when the mouse stop moving
When I try to rotate only over x or only over y it works fine but when I move the mouse randomly it doesn't work anymore. Namely if I rotate 90° (or -90°) over y (so right/left) and then try to rotate over x (so up/down) the body rotates on itself over z. Another weird behaviour is when the body rotates 180° over y (looking back), up and down are inverted. Looks like a local/world rotation problem so I guess that I don't understand how to use setAngularVelocity. If someone can tell me what I'm doing wrong it would help me :)

Statistics: Posted by Nyx Erebos — Wed Dec 04, 2013 2:38 pm

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