18a How to detect collisions three.js

Three.js has methods to detect collisions of 3d objects without using a physics engine. Learn how to detect intersect and contain collisions using cubes and spheres in three.js.
Timestamps:
00:00 Intro/demo
00:30 Basics of bounding shapes (Box3 and Sphere) in three.js
01:23 Basics of intersect and contain collisions in three.js
01:58 Boilerplate code: import, scene, camera, renderer, lights
02:25 How to make a cube and bounding box three.js
04:28 How to make a ball and bounding sphere three.js
05:25 Make ground and add objects to scene
05:42 How to make object move with arrow keys three.js
06:18 Add orbit controls
06:20 Animate function: how to move bounding box with 3d object in three.js
08:13 Animate function: how to check for intersect and contain collisions three.js
Resources:
Box3 Documentation: threejs.org/docs/#api/en/math...
Sphere Documentation: threejs.org/docs/#api/en/math...