WebGL is a Javascript API for rendering interactive 3D / 2D graphics on the HTML5 canvas element. It is based on OpenGL ES 2.0.

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Phaserjs, filters, save to image cache

I've tried to apply a Pixi filter to a image and save it to cache but the image doesn't get saved with the filter. colorMatrix = new PIXI.ColorMatrixFilter(); colorMatrix.matrix = [0,0.0,0.5,-0.2, ...
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2answers
75 views

WebGL techniques for normal mapping on morph targets?

I'm currently morphing some meshes by interpolating their positions and normals between target arrays, on the GPU, in WebGL. Now I need to apply normal maps to those morphs. For normal maps on ...
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46 views

possible way to bring canvas 2d animation in canvas webgl context

when added 2d animation canvas in 3d webgl canvas as texture, 2d animation and 3d animation both stopped working. Any reference for this.
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149 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 ...
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74 views

Web-Based Traffic Simulation based on Discrete Event SImulation + AI

I'm working on the application of 2D web-based traffic simulation. I am looking for a library that is suitable for my application. I'm making an application based on discrete event simulation, each ...
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209 views

One draw call with one big mesh VS many draw calls with many little meshes

I have read that in order to optimize WebGL application, one should reduce an amount of draw calls. But does it mean that computing a one big mesh from all single meshes on CPU by modifying vertices ...
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1answer
105 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 = ...
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31 views

Strauss model : no specular component [duplicate]

I implemented the Strauss model with the metalness, transparency and smoothness parameters, taking the formulas from the book "Programming vertex geometry and pixel shaders", this is how I implemented ...
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253 views

How can I compute spotlight attenuation when I only have a spotlight cutoff angle?

I am trying to compute the spot light attenuation, though I don't have a spotCosCutoff (cosine of the spotlight cutoff angle) predefined variable in the shader so I have to compute it myself. This is ...
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1answer
795 views

Having a problem with texturing vertices in WebGL, think parameters are off in the image?

I'm having a problem texturing a simple rectangle in my WebGL program, I have the parameters set as follows: gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, textureImage); I'm ...
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256 views

WebGL CORS error loading simple texture in Chrome

Here's my code: function loadTexture() { textureImage = new Image(); textureImage.onload = function() { setupTexture(); } textureImage.src = "jumper2.png"; } function ...
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32 views

How do i draw a volume cube and fill it up with a 3D texture in webgl? [duplicate]

Possible Duplicate: How can I implement 3D textures using webgl? I have a set of (x-y) images of the cross-section of an object varying along the z-dimension. From that i have to construct ...
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4answers
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How can I use WebGL to create a tile-based multi-layer scrolling platform game?

I've found WebGL (based on OpenGL) to be a fiendish and unforgiving framework for those learning to write HTML5-based games. Despite the presence of many examples on how to get started, I'm really ...
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1answer
140 views

List of GLSL ES built-in variables

I am writing an article on WebGL and three.js, I'm trying to search all the built-in variables available in the vertex and fragment shader. I've found many sites mentioning some, for example: ...
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2answers
211 views

enemy shooting towards FPS [closed]

WELL first of all I want you to see my game (its deployed on heroku cloud) : http://still-escarpment-3701.herokuapp.com (It takes almost 10 sec to load so please wait for couple of sec) I have ...
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1answer
768 views

How can I create a WebGL camera based on quaternions?

I am trying to create a WebGL camera based on quaternions. I looked at many tutorials, and none is as simple as it could be or it was not working. How can I create such a camera?