Search found 20 matches

by godlike
Fri Jul 20, 2018 6:31 am
Forum: General Bullet Physics Support and Feedback
Topic: How to detect collisions between concave meshes with GImpact?
Replies: 4
Views: 1298

Re: How to detect collisions between concave meshes with GImpact? Help :'(

I think you need to call updateBound() on the btGImpactMeshShape just after initialization.
by godlike
Sun Dec 29, 2013 12:27 am
Forum: General Bullet Physics Support and Feedback
Topic: My complaints on bullet's source code quality
Replies: 11
Views: 5893

Re: My complaints on bullet's source code quality

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...
by godlike
Sat Dec 28, 2013 6:20 pm
Forum: General Bullet Physics Support and Feedback
Topic: My complaints on bullet's source code quality
Replies: 11
Views: 5893

My complaints on bullet's source code quality

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...
by godlike
Wed Jan 30, 2013 1:57 pm
Forum: General Bullet Physics Support and Feedback
Topic: How to Cancel gravity
Replies: 3
Views: 2386

Re: How to Cancel gravity

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.
by godlike
Wed Oct 03, 2012 7:26 pm
Forum: General Bullet Physics Support and Feedback
Topic: Upcoming Bullet 2.81 release, please test trunk version
Replies: 7
Views: 5236

Re: Upcoming Bullet 2.81 release, please test trunk version

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...
by godlike
Fri Oct 14, 2011 2:43 pm
Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
Topic: why bullet take install in local repo ubuntu!!!!!!!
Replies: 4
Views: 8196

Re: why bullet take install in local repo ubuntu!!!!!!!

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_INSTALL_PREFIX=/usr path/to/bullet/trunk If you are using autof*ck......
by godlike
Fri Oct 14, 2011 1:17 pm
Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
Topic: why bullet take install in local repo ubuntu!!!!!!!
Replies: 4
Views: 8196

Re: why bullet take install in local repo ubuntu!!!!!!!

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 contains t...
by godlike
Sat Aug 14, 2010 2:46 pm
Forum: General Bullet Physics Support and Feedback
Topic: Weird problem: bodies dancing
Replies: 0
Views: 961

Weird problem: bodies dancing

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?
by godlike
Mon Jul 26, 2010 1:13 pm
Forum: General Bullet Physics Support and Feedback
Topic: Collision filtering using masking not working properly
Replies: 4
Views: 7467

Collision filtering using masking not working properly

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...
by godlike
Thu Jul 22, 2010 11:39 am
Forum: General Bullet Physics Support and Feedback
Topic: Error in btIDebugDraw documentation
Replies: 0
Views: 1251

Error in btIDebugDraw documentation

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 virtual as ...
by godlike
Thu Apr 08, 2010 7:41 am
Forum: General Bullet Physics Support and Feedback
Topic: Getting started
Replies: 8
Views: 2130

Re: Getting started

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.
by godlike
Wed Apr 07, 2010 8:59 am
Forum: General Bullet Physics Support and Feedback
Topic: Getting started
Replies: 8
Views: 2130

Re: Getting started

Try an "ldd BulletUebung" and post the results.

Also try to run it like this:
setenv LD_LIBRARY_PATH /usr/local/lib
./BulletUebung
by godlike
Tue Mar 23, 2010 9:09 am
Forum: General Bullet Physics Support and Feedback
Topic: A little help with building a particle emitter
Replies: 5
Views: 2276

Re: A little help with building a particle emitter

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 ...
by godlike
Mon Mar 22, 2010 9:05 am
Forum: General Bullet Physics Support and Feedback
Topic: Ubuntu 9.10 won't compile Bullet bullet-2.76 using ccmake ..
Replies: 2
Views: 1330

Re: Ubuntu 9.10 won't compile Bullet bullet-2.76 using ccmake ..

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...
by godlike
Sat Mar 20, 2010 1:03 pm
Forum: General Bullet Physics Support and Feedback
Topic: A little help with building a particle emitter
Replies: 5
Views: 2276

Re: A little help with building a particle emitter

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