schteppe/cannon.js

Features

• 3D Physics Engines - Implements a 3D physics engine in JavaScript for calculating real-time rigid body dynamics and collisions.
• Rigid Body Physics Engines - Provides a comprehensive mathematical engine for calculating real-time collisions and physical forces for 3D spatial objects.
• Collision Detection - Identifies intersections between 3D shapes using discrete collision detection and interaction filters.
• 3D Collision Detection Frameworks - Provides a framework for calculating geometric intersections between spheres, boxes, polyhedrons, and meshes.
• Overlap Detection - Detects overlaps between physical bodies and identifies specific contact points.
• Mechanical Joint Constraints - Supports linking physical bodies with joint constraints such as hinges and distance locks to build mechanical assemblies.
• Rigid Body Solvers - Implements a rigid body solver to resolve physical interactions and maintain geometric constraints.
• Physics Simulations - Provides a mathematical framework for simulating physical collisions and constraints in 3D environments.
• Rigid Body Dynamics - Models the motion and interaction of solid 3D objects using mass, friction, and restitution.
• Separating Axis Theorem Collisions - Implements the Separating Axis Theorem to detect intersections between convex 3D shapes.
• Local-to-World Coordinate Transformations - Converts shape-relative vertices into global scene coordinates to determine accurate intersection points.
• Mesh-Based Collision Geometry - Uses indexed vertex arrays to define complex 3D geometry for precise collision detection.
• Sequential Impulse Solvers - Calculates rigid body movement using sequential impulse solvers to resolve constraints and collisions.
• Quaternion Rotations - Handles 3D orientation and angular velocity using quaternions to avoid gimbal lock.
• Fixed-Step Integrators - Uses fixed-step integration to ensure stability and determinism in the physics simulation.
• Mesh Property Calculators - Computes critical geometric data including face normals and approximate volume for triangle meshes to support physics calculations.
• Game Physics Integration - Integrates physics simulation data with 3D meshes to visualize movement and collisions in a browser.
• Physical Heightfield Simulations - Generates physical surfaces from height data to create interactive floors and landscapes.
• Mesh and BVH Queries - Provides utilities to query mesh elements by transforming local vertices into world space coordinates.
• Render Mapping - Implements capabilities to map rigid body position and orientation data to external 3D objects for visualization.
• Visual State Synchronizations - Provides a mechanism to synchronize physics simulation state with 3D meshes for real-time visual updates.
• Mass Property Calculation - Calculates mass, centroids, and rotational inertia based on the geometry of convex polyhedrons.
• Fixture Shape Definitions - Provides definitions for 3D rectangular prisms used for collision detection and mass calculations.
• Heightfield Generators - Generates 3D terrain surfaces from height data points for use as physical boundaries in simulations.
• Static Surface Definitions - Allows the definition of infinite flat surfaces to simulate floors and walls.
• Collision Hull Clipping - Trims faces and shapes against hulls and planes to determine exact areas of overlap for physics responses.
• Graphic Libraries - Physics engine for 3D web applications.

Star history