Real-Time Physics Simulation Forum

Is the international units (meter, Newton, Pa) used in Bullet Physics? Thank you. Yes. I have faced only the problem determining btRotationalLimitMotor::m_MaxMotorForce units. In my experiments the unit is not "Newton * meter". I will be very appreciated if someone explains the meaning an...

Is the international units (meter, Newton, Pa) used in Bullet Physics? Thank you. Yes. I have faced only the problem determining btRotationalLimitMotor::m_MaxMotorForce units. In my experiments the unit is not "Newton * meter". I will be very appreciated if someone explains the meaning an...

I think there is some low threshold, if the m_targetVelocity is too low, no impulse at all is applied. If I scale up the m_targetVelocity high enough, all legs move properly; if I scale it down enough, all legs go limp as in my previous post. Somewhere in the middle, some legs work & some go li...

Anyway, this solution helped me to implement actuator which applies exact torque(or almost exact):

Hi everyone! I use btRotationalLimitMotor for simulating simple actuator exerting specified torque on attached bodies. void BulletRotationalServoMotor::setTargetForce(float targetForce_) { targetForce = targetForce_; motor->m_maxMotorForce = fabs(targetForce); motor->m_enableMotor = motor->m_maxMoto...

I wasn't able to see from your video if the rigid body really goes to sleep. Maybe you can implement the color of the body to change as a function of the activation state, like in the Bullet demos? In my code I disable deactivation using body->setActivationState(DISABLE_DEACTIVATION); Not really so...

I was trying to implement some kind of robotic control system and noticed strange behaviour of btRotationalLimitMotor. I use btRotationalLimitMotor in the following way to produce the attached video: btRotationalLimitMotor* motor = contraint->getRotationalLimitMotor(0); // constraint is btGeneric6DO...

I use Bullet 2.74 and am trying to implement simulation of the robot. For now, robot is presented as five cone shapes linked with generic 6DOF constraints. Limits of the constraints can be viewed on the screenshot. blender_scr.jpg Blender file: sausage.7z 1) The problem occurs when I am trying to li...