Real-Time Physics Simulation Forum

rather than doing concave-concave collisions you could check out the convex decomposition demo to see how to create a convex approximation of your dynamic concave shape and do concave-convex collisions between your dynamic object and static collision terrain. It's a little simpler and possibly faste...

you might try looking at this post, I think it might be a good starting point http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=2046 There is also a demo named ContinuousConvexCollision which might have something useful for you. I'm not sure, I haven't looked at it too closely. It s...

Maybe you could do ray casts or convex sweeps to detect collisions manually?

I don't believe Bullet supports collisions between kinematic and static objects at all...

That was very helpful. I will try implementing your method of moving the character with whatever it's standing on in my character controller. It sounds much simpler than what I am doing currently. I will try using impulses too instead of directly setting velocities. Did you modify the Bullet timer s...

Hi, I have a simple character controller which uses a full dynamics body and a sphere collision shape. I set velocities using setLinearVelocity() to move it around based on user input. I also have a jump function which uses applyCentralImpulse(). It's very similar to the Bullet character control dem...

Nothing jumps out at me. I see you set gravity to 100, and you are using 1.0 for most (all?) of your masses. Maybe try 10 or so for your gravity setting? (9.81...) How do the sizes of the boxes compare to the sizes of the objects they are resting on? How often/fast are you stepping the Bullet world ...

absolutely amazing stuff!

Great work everyone.

Hi, I have been thinking about something similar too. Currently I use timers in my main loop to fix my render framerate at 50Hz. I update all my per-frame material and gfx effects, update the bullet world, and then render a frame. Character control and input capturing is on another timer, a little s...

Then check that with "echo_plugin" source snailrose posted above. We really have to find a way to make that things working, since prototyping/editing/scening/tweaking with blender and then using it in Ogre seems a great Idea. Thanks! I missed that link the first time through. I agree, pro...

http://home.woh.rr.com/abyss/bulletogre_src.zip I too have been working on a Bullet + Ogre combination. I have something reasonable working with static meshes, boxes, and spheres. Convex decomposition is in the works and turning out pretty well - based around the demo distributed with Bullet. The b...

Yes that helped, thank you. I now have Bullet up and running in Ogre3D. Thankfully it appears that Ogre and Bullet use the same conventions for quaternions. btQuanternion.getW() works fine with Ogre anyway. I'll probably modify it later to just copy the matrix elements over, but for now it works wel...

Hi, I have a very simple question about integrating Bullet into my software. I have inhereted the btMotionState class and added my necessary data. My question is, what is the best way to translate Bullet's position and orientation data into my graphics sub-system? I noticed that the btTransform clas...