Real-Time Physics Simulation Forum

Since I'm using a btCompoundShape per chunk, the boxes are very close together anyway. I don't think it massively benefits from being octree'd up internally, if anything I seem to be getting better performance with it disabled. That said, my terrain is a fairly simple perlin noise height map at the ...

Quick update, I was using quite an old version of Bullet. Updating to the latest totally fixed my spiking frame rate, I was still getting about 100,000 allocations which killed my memory tracking. I then noticed you can stop btCompoundShapes building internal AABB trees, pop went all the allocations...

I'm using a btCompoundShape for each nearby chunk, when I spin through to calculate visible faces I add all the external boxes with addChildShape. It's very fast, my main issue at the moment is the amount of memory and allocations used, I'm writing for mobile phone so it's pretty limited. I really w...

How big is each chunk? I assume you're only adding the exposed faces? The best solution would obviously be making a custom shape, rather than using a trimesh. You're always going to have potentially thousands of polys per chunk otherwise. Whereas a few hundred octreed up AABBs is always going to be ...

Although not quite the same, I had an issue with raycast cars, driving on a flat surface the cars would suddenly get crazy collision normals back and the car would flip. I'd assume yours is a similar issue with edges. I've sorted this by storing all of the face normals in a list, when a collision is...

Just a minor thing, should these be working in 2.79? The only reason I say this, mine were rotating at crazy speeds, looking at the code, around line 351 it had: wheel.m_deltaRotation = (proj2 * step) / wheel.m_wheelsRadius; Is this as intended? Swapping this to rotation = distance / wheel circumfer...

I've got a 5 meter long car (raycaster vehicle), which can travel up to about 150mph (240 kph), once the velocities get up to this sort of level I seem to get artifacts, with no steering forces it'll still repeatedly veer off to the side. Would I be better scaling everything, so the car is 2.5 meter...