Questions on Physical Rotation

Hello everyone. I have a couple of questions on rotating physical objects via LSL...


1) What is the speed of the rotation measured in? Degrees per second?

2) Let's say I have an object already rotating along the Z axis at five degrees per second. If I call a physical rotation function such as llSetTorque to rotate the object at two degrees per second, will those extra two degrees per second be added on to the original 5 to get a total of 7 degrees per second, or will the rotation slow down to 2 degrees per second?



Thanks in advance. ^_^

radians per second

I can't find the graphic in either of the current wiki pages. It is here in the mirror though, plus all of the other info on radians:

http://www.cheesefactory.us/lslwm/radian.htm

That explains a lot. <_<;


I'll try experimenting to find the answer to my second question.

The value applied is a force, not degrees per second, the amount of force needed is based on the mass of the object * the gravity (9.8 meters per second).

float mass = llGetMass(); // mass of this object
float gravity = 9.8; // gravity constant
llSetForce(mass * <0,0,gravity>, FALSE); // in global orientation

... will levitate an object (like llSetBuoyancy (1.0) will). Note how the force set changes as the mass of the object changes. So, the value you want to use is going to be based on the mass of the object (including the avatar if it's attached). If attached, llGetMass() will return the mass of the object plus the avatar (and any other attachments). There is no additive thing here, you're simply setting a constant force being applied to the object.

llTargetOmega takes a direct input of radians per second. If you are using llApplyRotationalImpulse, llSetTorque, or llSetForceAndTorque, then you can use llGetOmega to see what the radians per second are and adjust accordingly.