BULLET

Introduction

BULLET is an open-source physics engine designed for high-performance simulation of rigid-body dynamics. It is written in C++ and is widely used in the video game industry.

Features

• Supports collision detection and response for convex shapes.
• Uses sequential impulse for collision resolution.
• Supports parallel processing using OpenMP.
• Uses temporal coherence to optimize collision detection.
• Provides an intuitive API for easy integration into games and simulations.

Getting Started

To use BULLET in your project, you can download the latest version from the official website or via the GitHub repository. BULLET is distributed under the permissive zlib license, which allows for both commercial and non-commercial use.

Once you have downloaded the source code, you can build BULLET using CMake or a build script provided with the source distribution. BULLET supports multiple platforms, including Windows, Linux, and macOS.

Usage

To use BULLET in your project, you will need to create a btDynamicsWorld object and add rigid bodies, constraints, and other objects to it. You can then step the simulation using the stepSimulation method and retrieve the position and orientation of objects using the getWorldTransform method.

BULLET provides a number of built-in collision shapes, including spheres, capsules, boxes, and cylinders. You can also create custom collision shapes by implementing the btConvexShape interface.

Conclusion

BULLET is a robust and performant physics engine that is widely used in the video game industry. Its intuitive API and robust collision detection and resolution make it an excellent choice for games and simulations that require accurate physics simulation.