Real-Time Physics Simulation Forum

I wanted to come back and report that all is working well now that my own project's build process builds bullet. Thanks!

I recommend to simply include Bullet inside your own project, and choose which build system you use yourself (make, jam, CMake etc). The way I currently distribute bullet is as a tar.gz file inside my project's release, and then the user is expected to untar bullet, run jam or cmake or make inside ...

Using jam, the output libraries I'm interested in are called libbulletcollision.a and libbulletmath.a. Using cmake, the output libraries are called libBulletCollision.a and libLinearMath.a. Why are these different? This makes it difficult for me to use bullet in my project, because I need to add com...

Right now I use bullet for its collision detection only. I'm considering using bullet for dynamics simulation, but I have some questions. It seems like bullet's dynamics simulation is geared toward collision response, and it's up to the user to apply any other forces, which bullet sums with the coll...

I ended up going the latter route and it works fine. The only wrinkle is that I had to manually remove (release) all of the manifolds once I was done with them.

I'd like to use some of bullet's lower level collision detection functions to collide a box shape (btBoxShape) with a trimesh shape (btBvhTriangleMeshShape). In the demo called "CollisionDemo", a box-to-box collision is done, but the functions/classes used seem specific to convex-convex co...

It'd be great to have a multiple ray result callback as a standard feature. I ended up rolling my own, also (we even named it the same): struct MultipleRayResultCallback : public btCollisionWorld::RayResultCallback { MultipleRayResultCallback(const btVector3& rayFromWorld,const btVector3& ra...

Since I'm trying to integrate bullet into an already mostly complete game (vdrift.net), combining all of the static meshes into a much smaller number of objects would be difficult because the game relies on knowing which object was collided with. Instead, I coded up a simple AABB-based splitting pla...

With SVN R917: Each sample counts as 0.01 seconds. % cumulative self self total time seconds seconds calls s/call s/call name 39.68 5.90 5.90 btCollisionWorld::rayTest(btVector3 const&, btVector3 const&, btCollisionWorld::RayResultCallback&, short) 27.98 10.06 4.16 btTriangleMeshShape::g...

First off, let me say that bullet seems to be extremely well-written. I like the way the API works, and I haven't encountered any bugs or inconsistent behavior so far. I prefer it over ODE. The bullet documentation could use some work, but the large assortment of demos helps. I'm using bullet 2.64 i...

I think I found my problem. I assumed that btTransform would set itself to identity on construction, but it looks like it doesn't. Adding this makes things work as expected: object.getWorldTransform().setIdentity(); By the way, any particular reason that btTransform doesn't do a setIdentity() in its...

I'm new to bullet. With C++ and bullet 2.64, I can't seem to get simple raycasting to work, even with this simple little example: #include <iostream> #include <string> #include "btBulletCollisionCommon.h" using std::cout; using std::cerr; using std::endl; using std::string; int main() { bt...