Tagged Questions
Three.js is a JavaScript 3D Library which makes use of WebGL
3
votes
2answers
84 views
+150
determining view boundaries based on z position when using a perspective projection
I'm using three.js to make an animation of a box moving around the screen in 3 dimensions.
It is moving pseudo-randomly, according to a noise function. So, I want to place an invisible wall just ...
0
votes
1answer
89 views
Is it possible or not to share a geometry among many meshes and applied a different shaderMaterial for each?
I instanciate one PlaneGeometry, then I instanciate 200 meshes sharing this geometry and with their own instance of a given shaderMaterial. Here is a simplified version of the code :
...
var geom = ...
1
vote
0answers
84 views
Must light helper be added directly in scene?
Following method of adding light helper works ok:
var light = new THREE.SpotLight( 0xFFFFFF );
light.position.set(100,100,100);
scene.add(light);
var helper = new THREE.SpotLightHelper( light );
...
1
vote
0answers
138 views
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, ...
0
votes
0answers
22 views
How can you merge the geometries of cloned objects in Three.JS?
So I'm testing the best non-voxel way to display a lot of objects at once and so I found how to merge geometries.
Now, I can easily merge most geometries, but I can't seem to merge the geometries of ...
0
votes
0answers
89 views
WebGL - Luminance textures from JPG images
Is there any way to create a WebGL texture with Luminance format from JPG image?
JPG images have 3 color channels and luminance texture has only one channel. The problem is that gl.texImage2D can't ...
0
votes
0answers
46 views
How to evenly add textures to objects in Three.js?
I'm trying to add simple textures to my game in Three.js but I can't figure out how to evenly map textures to differently sized objects.
This is how my textures look at the moment:
The textures ...
0
votes
0answers
135 views
parametric 3D sphere unwrapping math for perfect 3D-textures
After some time looking or it on the internet I can't find the proper answer to my concern.
I'm currently generating 3D textures on a shader for my planets to avoid sphere mapping issues (pole, ...
