Real-Time Physics Simulation Forum

I can confirm that this is an issue. These libraries used to use the "Lib" prefix, but not in current svn, and removing the "Lib" prefix from the library names in CMakeLists.txt (as IsaacG suggests) resolves the issue. In general, what is the formal mechanism for submitting fixes...

Everything built well except the demo "HeightFieldFluidDemo". The CMakeLists.txt still had the old "Lib" prefixes for the Bullet library names (eg, "LibOpenGLSupport.Lib"). I removed the "Lib" prefixes and it built fine; modified CMakeLists.txt attached. Cheers,

Thanks, Erwin. I saw your changes when I updated, and I've fired off a rebuild of several projects including BUllet. I'll post results later tonight or in the morning.

It turns out there's a build error as well. This is from VS 8: 1>------ Build started: Project: HfFluidDemo, Configuration: Debug Win32 ------ 1>Compiling... 1>btHfFluid.cpp 1>..\..\..\Demos\HeightFieldFluidDemo\BulletHfFluid\btHfFluid.cpp(11) : fatal error C1083: Cannot open include file: 'Demos/Op...

I am building from current svn as of 20:00 UTC, 13 Jan. I ran into two problems with CMake that required correction: 1.Extras/iff/CMakeLists.txt line 11 contains a SUBDIRS command that referenced a non-existing directory. I worked around this by commenting out line 11. 2. Demos/CMakeLists.txt refere...

I'm developing some Bullet-based code and looking for a Bullet expert to answer my questions, guide development of my code, and possibly write some small examples. Most of the work involves rigid bodies, constraints, and COLLADA i/o. Experience integrating Bullet with OpenGL is a plus. Pay is reason...

Hi all -- I'm using v2.68. When building on Windows (VS8), is smake or the supplied VS sln/vcproj files the recommended method? I've encountered problems with both... cmake 2.6 generates sln/vcproj files that fail to build libbulletmath.lib. The supplied VS8 sln/vcproj files use different settings f...

In my code, I derive a class from btDefaultMotionState and override the setWorldTransform() method. Bullet calls that method to update the position/orientation of the rigid body.

Hope that helps.
-Paul

Hi Kevin -- Did you get anywhere with thid yet? I am about to start coding a similar task; I want the user to interact with the simulation using a data glove, so I need to specify finger/knuckle angles. I intend to simulate the hand using zero-mass rigid boxes and cylinders, joined with 6dof constra...

Thanks for the input, all. Here's what I have finally done as a solution... Yes, the Bullet mesh must have center of mass at the origin, and I must do something to make that work, such as applying an offset to each vertex or using a CompiundShape and transform as mentioned earlier. In addition to th...

Okay, after playing wih this for a while, I'd like to reopen this issue. Thanks for the help, but both of the solutions provided appear to result in moving the mesh in the world so that it's centered on the origin -- either by offsetting the mesh vertices, or by setting a transform. Neither of the s...

I appreciate your assistance. I have a working solution now. Thanks much.
-Paul

Hello all -- I have a tri mesh, for simplicity let's say it's a cube 2x2x2 units in size, with one corner at the origin. Bullet treats this body as if the center of mass is at the origin corner. I'd like to tell Bullet that the center of mass is at (1,1,1) -- in the center of the 2x2x2 cube-- but so...