Real-Time Physics Simulation Forum

I think you need to call updateBound() on the btGImpactMeshShape just after initialization.

One problem of under-documentation, as mentioned in the previous post, is ofcource the difficulty we face when we want to use bullet. Another serious issue is the fact that it's difficult for someone to contribute. There were a few occasions where I wanted to fix a bug or investigate something but a...

First of all I have to say that I am using bullet, I love bullet, I am grateful that we have bullet. Please excuse me for the following complaints but after seeing bullet3 source code and no real improvement on the source quality I feel the need to write a few things. First the minor: - Lines that s...

From what I remember the world's gravity is been copied to every new body you add to the world. Maybe you need to iterate all objects and set the new gravity yourself.

I seem to have some CMake issues on linux. For some reason CMake cannot find opengl and glut. I am very sorry I don't have more concrete info. I will try to investigate -- Could NOT find OpenGL (missing: OPENGL_gl_LIBRARY) OPENGL NOT FOUND -- WARNING: you are using the obsolete 'GLU' package, please...

there are a folder named "local" in "usr" folder. bullet tak install here "usr/local/lib" , "usr/local/include" instead "usr/include" & "usr/lib". If you are using cmake just override the CMAKE_INSTALL_PREFIX option cmake -DCMAKE_INSTA...

Your first question gives me an opportunity to address an issue that bullet has. Internally the bullet itself includes its own headers like: #include "btBulletDynamicsCommon.h" In order to use the library in your application you have to add an extra include path. This path is the one that ...

I have a video that illustrates the problem. You can see the crates "dancing" especially in the 22nd second.

http://www.youtube.com/watch?v=R7Oan4lriZc

Does anyone have an idea?

I've tried to test the collision filtering feature using masking as seen here http://bulletphysics.org/mediawiki-1.5.8/index.php/Collision_Filtering#Filtering_collisions_using_masks I chose to make a test using the BasicDemo (one static big box-shaped body for ground and many small box-shaped bodies...

In btIDebugDraw class documentation you say: "...interface has to implement the drawLine method at a minimum". The problem is that implementing the drawLine is not enough. The derivative class will still be abstract. Some methods (drawContactPoint, reportErrorWarning and others) are pure v...

It looks like /usr/local/lib is an irregular library path. The executables try to load the dynamic libs from /usr/lib unless you override it by setting the LD_LIBRARY_PATH.

Try an "ldd BulletUebung" and post the results.

Also try to run it like this:
setenv LD_LIBRARY_PATH /usr/local/lib
./BulletUebung

There is not really a good mechanism for this. You could try to remove the particle/body from the world, or is that too slow? Otherwise, try using object->forceActivationState(DISABLE_SIMULATION); to disable the particle, and to enable again: object->forceActivationState(ACTIVE_TAG); Thanks, Erwin ...

Hello, I use the same OS and the bullet from SVN. To build it I do this: 1) svn checkout http://bullet.googlecode.com/svn/trunk/bullet_svn 2) cd bullet_svn 3) cmake -DBUILD_SHARED_LIBS=OFF -DCMAKE_BUILD_TYPE=Release 4) make PS: These errors you are talking about aren't exactly errors. They are messa...

Great thanks. It looks like I was doing something wrong with the gravity. The first question remains though. How can deactivate a body?