Tagged Questions
-1
votes
1answer
101 views
Drawing polygons in 3D
I have recently been working on a 3D engine from scratch, using JavaScript and HTML5. I've successfully created lines (although slightly buggy) and points, but I can't figure out faces. My current ...
2
votes
2answers
519 views
Rotate sphere in Javascript / three.js while moving along x/z plane
I have a sphere/ball in three.js which I want to "roll" around on the x/z plane. For the z axis I could simply do this no matter what the current x and y rotation is:
sphere.roll_z = ...
4
votes
3answers
245 views
List of 3D libraries based on WebGL
Is there a up-to-date list of WebGL libraries or articals with comparison?
Until now I heard only tree.js and GLGE.
1
vote
0answers
404 views
How to turn a 3d camera (in HTML5 2D Canvas)
A few years back I started experimenting with 3d in canvas. Everything went pretty well untill I had to to turn the camera, I couldn't get it done.
A few days back I just happened to stumble upon ...
1
vote
4answers
2k views
Transform coordinates from 3d to 2d without matrix or built in methods
Not to long ago i started to create a small 3D engine in javascript to combine this with an html5 canvas.
One of the issues I run into is how can you transform 3d to 2d coords.
Since I cannot use ...
0
votes
1answer
186 views
throw a 2D ball facing the target to simulate a 3D like effect
How would you update the state of a 2D object that is thrown forward(with an arc) facing a target to simulate a 3D(depth) like effect?
var ball; //2D ball from a sprite sheet
ball.x = 0;
ball.y = 0;
...
2
votes
2answers
597 views
Why is my quaternion camera rotating around strange axes?
I can't get it to work for the life of me. Its rotating the camera in the global coordinate system, or some other random coordinate system, not the camera local coordinate system. WASDEC work ...
7
votes
4answers
1k views
How to implement mouselook in the browser?
I am currently creating a 3D first-person shooter game in the browser using WebGL. How would I implement mouselook/free look for such a game?
1
vote
1answer
1k views
Translate object in world space usings it's local rotation
I'm using Three.JS to render some objects. I'm struggling with some very simple object rendering and translation.
The scenario is that I spawn an object at 0,0,0 in world space with 0,0,0 rotation.
...
2
votes
2answers
713 views
How do I employ an arcball to allow the user to look around the screen?
How do I apply an arcball (using quaternions) along with mouse events, to allow the user to look around the screen using the o3d WebGL framework?
This sample uses the arcball for rotating the ...
