threejs-collision-patterns

Implement collision detection in Three.js without a physics engine by using geometric primitives like AABB and sphere-distance tests directly in your game loop to validate movement and prevent entities from passing through walls.

The best way to detect projectile hits and pickup zones in WebGL games is applying geometric collision tests, such as height-aware radial cone colliders and sphere-distance checks, to trigger interactions without heavy physics overhead.

Stop your player entity from getting stuck inside geometry by implementing a pre-movement validation pattern that checks the target position against static and dynamic colliders before applying movement updates in the game loop.

You can use lightweight collision logic for interactive architectural walkthroughs in Three.js by utilizing AABB and sphere primitives to handle wall blocking, ensuring performance is prioritized over complex physics simulations.

Avoid using a full physics engine for web-based game collision when performance and simplicity are your top priorities, and your requirements are limited to wall blocking, projectile hit detection, and collectible pickup zones.