Ok I keep getting: Crash in: NewtonSetTyreSteerParam. Not sure what I am doing wrong, but this is how I am trying to do it.

dllfunction NewtonSetTyreSteerParam (vehicleConst, tyreIndex, paramtricAngle);

Ok, 3 parameters, first I am creating 2 local variables in my ai car action like:
var FLTire;
var FRTire;

I use these to then get the vehicleConst parameter by doing this after my var defines:
FLTire = NewtonGetBody(p1FL_W);
FRTire = NewtonGetBody(p1FR_W);

I think this may be causing the issue, because a breakpoint before this tells me that FLTire & FRTire both = 0.

Ok, next parameter, in my left and right front tire actions, I have a call to: NewtonVehicleAddTyre(vehicleConst, my);, well it returns the tire index which is our next parameter to pass, so I set it like this:
p1FLTireIndex = NewtonVehicleAddTyre(vehicleConst, my);

A breakpoint before this gives me an index number for each tire.

Last parameter, paramtricAngle, I simply pass a value to set my new steering angle to.

So any clues anyone? I am thinking it's because I am not using the correct newton function to get the vehicle constraint for the tires, but I don't know what else to call to get the constraint for the tires.

Thanks

-raiden

Has anyone using Newtons been succesful with these functions:
Code:

---

// NewtonGetTyreSteerParam: 
// Description: return the parametric steer angle for this tyre
// Parameters: vehicleConst
//			   tyreIndex
// remark: 
dllfunction NewtonGetTyreOmega (vehicleConst, tyreIndex);
dllfunction NewtonGetTyreRadius (vehicleConst, tyreIndex);
dllfunction NewtonGetTyreInertia (vehicleConst, tyreIndex);
dllfunction NewtonGetTyreSteerParam (vehicleConst, tyreIndex);
dllfunction NewtonGetTyreNormalLoad (vehicleConst, tyreIndex);
dllfunction NewtonGetTyreLateralSpeed (vehicleConst, tyreIndex);
dllfunction NewtonGetTyreLongitudinalSpeed (vehicleConst, tyreIndex);


// NewtonGetTyreSteerParam: 
// Description: return the parametric steer angle for this tyre
// Parameters: vehicleConst, tyreIndex, paramtricAngle
// remark: 
dllfunction NewtonSetTyreSteerParam (vehicleConst, tyreIndex, paramtricAngle);
dllfunction NewtonSetTyreLateralFrictionCoef (vehicleConst, tyreIndex, frictionCoef);
dllfunction NewtonSetTyreLongituFrictionCoef (vehicleConst, tyreIndex, frictionCoef);
dllfunction NewtonSetTyreTorque (vehicleConst, tyreIndex, torque);

---

I tried using NewtonGetTyreOmega, but it crashes on me when the function calls. I am calling it like this:
tireSpeed = NewtonGetTyreOmega(my.myVehicleConstraint,0);

I get a crash in NewtonGetTyreOmega error. I am sure it is my parameters, but I don't know the correct ones.

Thanks

-raiden