I have the need to orientate an instance of THREE.Mesh to always face the camera. I know I could just use the [THREE.Mesh].lookAt() method, but I'm trying to work on my GLSL chops a bit more and want to be able to do this in a vertex shader.  I&#...
I attempted to use the following code I found on Stack Overflow to export an OBJ from geometry in a Three.js scene. The geometry is being displaced by a GLSL shader so the displacement of vertices doesn't seem to export with the geometry. When I...
I'm looking to parallelize some complex math, and webgl looks like the perfect way to do it. The problem is, you can only read 8 bit integers from textures. I would ideally like to get 32 bit numbers out of the texture. I had the idea of using th...
I have seen the following question where someone asked how to remove shaders from html: WebGL - is there an alternative to embedding shaders in HTML?  There are elaborate workarounds to load in a file containing the shader suggested in the answers to...
UPDATE 2  I've implemented custom attributes with THREE.js, influences come with each pass in the vertex shader aligned with position attribute, the best solution with minimal code.     I will add the example later   UPDATE 1  This method sets al...
I've been trying to make a structure that will contain all the lights of my WebGL app, and I'm having troubles setting up it's values from JS. The structure is as follows:   struct Light {     vec4 position;     vec4 ambient;     vec4 dif...
I am lately experimenting and learning webgl and shaders, as i am trying to build animation for the website background. I was able to port simple examples from shadertoy into three.js to play with it. Now i am trying to better understand more advance...
I'm trying to make custom filters with Phaser, but I don't get how the uniforms, and vTextureCoord in particular are specified. Here's a JSFiddle (EDIT: Ignore the image, the minimal case lays in the square gradient):   Why isn't the...
This may be a bit of a naive question so please go easy on me. But I was looking at shaders at shadertoy.com and I'm amazed at how small the glsl code is for the 3d scenes. Digging deeper I noticed how most of the shaders use a technique called r...
I've been playing around with vertexshaderart.com and I'd like to use what I learned on a separate website. While I have used shaders before, some effects achieved on the site depend on having access to vertices/lines/triangles. While passing...

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