GetVelocity returns a velocity. It's already in degrees / second. SetVelocity() takes the same units. AngularImpulse is a vector type that can contain an impulse, but here it's just used as a vector.
> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Justin Krenz > Sent: Tuesday, July 25, 2006 9:02 PM > To: [email protected] > Subject: [hlcoders] Physics Problem > > I have a physics object that I'm trying to retrieve its > angular velocity in degrees/second. Using GetVelocity(Vector > * velocity, AngularImpulse > * angularVelocity), it appears that I can retrieve the > angular impulse of the angular velocity. Getting this value, > I multiply it by 180*pi to convert from radian to degrees, > and then I divide by the object's mass. > > However, I compare this to the actual change in degrees that > the model undergoes, and the values are different. For > example, if I use > SetVelocity(...) to input an AngularImpulse of 100 for the x > axis/pitch every frame, then convert to radians and divide by > a mass of 2080, I get approximately 2.8. However, if I > sample the actual change in degrees of the object's pitch > every frame, it comes out to approximately 19 degrees/second. > > What am I doing wrong, and how can I correctly calculate an > object's change in angle in degrees/sec? > > _______________________________________________ > To unsubscribe, edit your list preferences, or view the list > archives, please visit: > http://list.valvesoftware.com/mailman/listinfo/hlcoders > > _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders
