Real-Time Physics Simulation Forum

I have a vehicle (but I think the issue exists with normal rigid bodies) in a scene with a constant timestep that I get the position of each frame, to simplfy: //world->stepSimulation(deltaMS / 1000.0); world->stepSimulation(0.05,1,0.05); if(car->getCurrentSpeedKmHour() > someValue) //if(car->getRig...

Before I take an in-depth look, it appears your link 404's for me. Maybe you tried to link to a private google drive? As to the direction of the angular velocity: We're talking about a changing yaw of the motorcycle as it drives in a circle, NOT the roll of the bike which provides the angle theta, u...

Wouldn't the cross of dorsal and up be very close to 0 if the vehicle is standing upright? If it, as dxdf, is the denominator in the calculation for turn_rate wouldn't turn_rate be INF when the vehicle is standing upright? I'd think it should be near 0 then? Also my question from the previous post s...

Thanks for taking the time to write such an involved reply. Unfortunately I can't quite seem to get it to work. Here's my attempt: btRigidBody *car = common.brickCars[a]->body; btTransform worldTransform = car->getWorldTransform(); worldTransform.setOrigin(btVector3(0,0,0)); btVector3 up = btVector3...

I'm trying to create a motorcycle, the standard gyroscopic effect doesn't seem to be enough to keep it from tipping over. I've been trying to find a way to basically apply a rotation around the long axis of the bike inversely proportionate to how far tilted the bike is on that axis. I thought this w...

First off, I did find a magic line that did increase performance by a ton: world->setForceUpdateAllAabbs(false); That said, I'm still on the quest to handle ever more objects. If you want to increase performance you should try consolidating multiple static objects together to get a smaller number of...

So I'm trying to get a simulation going where even though I have minimal moving objects, I may have a very large amount of totally static things to collide with. Really the greater the number the better, 10000s at least, ideally hundreds of thousands. But none of them need to do anything except mayb...