Help with rotating my tires, please?

I'm using the llSetTargetOmega to try to make a tire rotate when my vehicle is in motion. My problem is, as the vehicle moves AND TURNS, the relative x, y, and z axis change. How do I code a script that will allow my cylinder prim to always rotate, as if it were a tire, regardless of the direction in which my vehicle is facing?

Thank you!
Rutherford Beresford

I've only tried it by moving the object in the edit window rather than putting in a motor and driving round, but

default
 {
 	state_entry()
 	{
 		llTargetOmega(<0.0,0.0,1.0>*llGetLocalRot(), 1, PI);
 	}  
 }
 

seems to do it.

You might consider trying an animated texture rather than an actual rotating prim as well.

Hewee's got the right idea, that's the best way to go about it, no muss, no fuss, no rotation issues.

I was using animated textures but I kinda liked the realism of a rotating prim. Thanks to all for their suggestions.

Nevertheless, if your vehicle is physical, I don't think using llTargetOmega is a very good idea. This is because all the work that's done client-side when llTargetOmega is running on non-physics objects has to be done server-side when the object is physical.

So your wheels are physical, then you're going to place a considerable burden on the sim.

If they are child prims of a vehicle object, the wheels cannot be physical. llTargetOmega() in child prims is ALWAYS handled on the client side, whether or not the object/root prim itself is physical.

Oh.. that's good to know .. I have clearly been labouring under a huge misapprehension and making some unnecessary work for myself. Thanks.

and a good thing that since texture animation motion can't be set by side, it's global to the prim (not that it matters for toroids and spheroids.

Precisely so. Because neither of us thought I could use llTargetOmega on a some child prims of a physical object, a customer and I recently spent ages making textures and trying to coordinate the texture animation speeds for some extra prims that we could ill afford in a detailed physics vehicle.