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OpenGL texture, POSIX benchmark
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‎README.md‎

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1. [Linting tools](linting-tools.md)
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1. [Frama-C](frama-c/)
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1. [Boost](boost/)
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1. [CMake](cmake.md)
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1. [Build systems](build-systems.md)
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1. [CMake](cmake.md)
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1. [Flex and Bison](flex-bison/)
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1. [glibc](glibc/)
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1. [hello_world_cpp.cpp](hello_world_cpp.cpp)
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1. [LAPACK](lapack/)
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1. [OpenCV](opencv/)
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1. [PLplot](plplot/)
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1. [Bullet physics](bullet/)
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1. [CONTRIBUTING](CONTRIBUTING.md)
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1. [TODO](TODO.md)
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1. [Bibliography](bibliography.md)

‎build-systems.md‎

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# Build systems
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- premake:

‎bullet.md‎

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‎bullet/Makefile‎

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../Makefile_many

‎bullet/Makefile_params‎

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# TODO get rid of this. Bullet headers are horribly coded for Linux:
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# the toplevel include all btBulletDynamicsCommon.h uses #include "subdir"
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# instead of the better #include "bullet/subdir".
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# So we are forced to add it to the search path.
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# Maybe some cmake magic would prevent that?
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I := -I/usr/include/bullet -I/usr/local/include/bullet
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LIBS := \
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-lBullet2FileLoader \
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-lBullet3Collision \
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-lBullet3Common \
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-lBullet3Dynamics \
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-lBullet3Geometry \
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-lBullet3OpenCL_clew \
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-lBulletCollision \
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-lBulletDynamics \
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-lBulletSoftBody \
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-lLinearMath

‎bullet/README.md‎

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# Bullet
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1. [Introduction](introduction.md)
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1. [Concepts](concepts.md)
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1. [Build](build.md)
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1. [Users](users.md)
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1. Examples
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1. [Hello world](hello_world.cpp)
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1. [TODO](TODO.md)

‎bullet/TODO.md‎

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# TODO
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- Stairs physics: http://gamedev.stackexchange.com/questions/74794/make-the-player-run-onto-stairs-smoothly

‎bullet/alternatives.md‎

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# Alternatives
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2009 comparison: <http://physxinfo.com/articles/?page_id=154>
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Open source:
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- ODE
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- Newton
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Proprietary:
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- PhysX: bought by NVIDIA from a Swiss company. NVIDIA GPU acceleration.
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- 2015 Flex demo with lots of water / cloth: <https://www.youtube.com/watch?v=pfonMfP__Ks>
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- Havoc: first bought by Intel from an Irish company, then Microsoft.
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- Has GPU support.
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- Used by Assassin's Creed (Ubisoft)
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- Havoc destruction
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- car demo 2015: https://www.youtube.com/watch?v=iiRR6DtR1z8
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- 2010 demo: https://www.youtube.com/watch?v=cIcg5eotZlY
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2D:
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- Box2D
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## Fluids
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- https://github.com/rchoetzlein/fluids3
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- https://github.com/erwincoumans/fluids_v3
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- https://en.wikipedia.org/wiki/Smoothed-particle_hydrodynamics
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- Windows focused build, https://github.com/erwincoumans/fluids_v3/pull/2 might port it to Linux

‎bullet/build.md‎

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# Build
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Tested on Ubuntu 2.83.5 in Ubuntu 15.10.
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Just forget that `premake` build, use the much more popular CMake and be done with it! Why both exist: <https://github.com/bulletphysics/bullet3/issues/600>
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git clone https://github.com/bulletphysics/bullet3
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git checkout 2.83.5
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mkdir -p build
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cd build
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cmake .. -DBUILD_SHARED_LIBS=ON
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make
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sudo make install
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Run examples:
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cd build/examples
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./ExampleBrowser/App_ExampleBrowser
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./HelloWorld/App_HelloWorld
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If you don't use:
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-DBUILD_SHARED_LIBS=ON
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only the static `.a` files are generated, and you will get link errors if you try to use them with `-lBulletSomething`.
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The example browser allows you to:
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- view simulations OpenGL
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- mouse drag objects around
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- move camera with mouse wheel or Ctrl + mouse drag
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Make dynamic libraries: <https://github.com/bulletphysics/bullet3/issues/447>
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TODO: compile examples without the example browser.

‎bullet/concepts.md‎

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# Concepts
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- acceleration: continuous speed change, ignores mass
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- force: continuous speed change, considers mass
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- impulse: instantaneous speed change, considers mass
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- velocity change: instantaneous speed change, ignores mass
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- rag doll physics: https://www.youtube.com/watch?v=XKuleYcVF-U
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- https://en.wikipedia.org/wiki/Ragdoll_physics
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- http://www.havok.com/physics/
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I distinctly remember sing that on a CS:GO game in 2016-04-15, when a dead body fell from a platform
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- AABB axis-aligned bounding-box http://www.gamasutra.com/view/feature/131833/when_two_hearts_collide_.php

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