# Tagged Questions

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### Walking on a sphere

I'm working on a game which involves walking your character on the surface of a sphere. Using the answer to Arbitrary Rotation about a Sphere, I've written my code as: if (game.isKeyDown(37)) { // ...
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### Quaternions - how to limit axis?

Is there any possibility to limit quaternions to move only in x & y axis (like in Eulers- yaw and pitch, without rolling)? I's there any equation or something similar to do this? Some example: ...
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### Particle systems on multiplayer games

I'm working on a 2D javascript/Three.js multiplayer game, using web sockets and an authoritative server currently written in Python. The combat mechanic will be similar to Geometry Wars however i'm ...
840 views

### How to rotate an object so it stands correctly (back always facing the camera)

I have the following scene: And I have two 3D vectors, the camera position, and the focus position. The focus vector is always behind the monster. I know how to rotate the camera around the focus ...
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### How to load geometry/object/scene created in Clara.io with Three.js

Does anybody know how to load anything created in Clara.io into your Three.js scene? Clara.io allows export of ThreeJS geometry, object or scene. I tried all those in combination with all THREE ...
2k views

### How to handle 3D collisions using raycasting (with a reflection vector?)

I'm making a game using THREE.JS, and I want my character to walk on the terrain, and collide with static 3D objects (=AABB boxes) that are on that terrain. The problem is: THREE.JS has only a ...
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### How to manage frustum culling

I have a spherical clipmap based planet terrain. The entire planet is made from a ring geometry of 1 unit which the vertex shader moves to cover the entire planet of 6 million unit radius. But the ...
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### Is there an out-of-the-box way to create a custom non-convex polygon in three.js?

Does Three.js offer an out-of-the-box way to create custom non-convex polygon, or do I have to use THREE.Geometry and set faces manually? I'm guessing that ShapeGeometry has something to do with this, ...
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### best way of rendering more 3D models in three.js that not slow down page?

I am in the way of creating a 3D web game using threeJS library. This is a multi-player game that players are 3D human models in game, and I need to add a human 3D model for each player that enters ...