WebGL GLSL Shader Editor Extension for Google Chrome

A Chrome DevTools extension to help you edit shaders live in the browser. Very much based on Firefox DevTools Shader Editor. Here's a video showing it in action

Install the extension from the Chrome Store

Twin project of Web Audio API Editor Extension for Google Chrome

Some more info about this project: Creating a Plug'n Play Live WebGL Shader Editor

How to install

From the chrome store:

• Follow this link and install the extension from the Chrome Store

Load the extension from disk directly:

• Checkout the repo
• Open Chrome's Extensions page (Settings / More tools / Extensions)
• Enable Developer Mode
• Click on `Load unpacked extension...
• Select the folder /src in the checked out project

Alternatively, you can pack the extension yourself and load by dropping the .crx file in the Extensions page.

How to use

• Browse to a page with WebGL content (you can find many here http://threejs.org/, here https://www.chromeexperiments.com/webgl or here http://www.webgl.com/)
• Open DevTools
• Select the Shader Editor tab
• The extension needs to instrument WebGLRenderingContext: if you open DevTools after the page has loaded, hit the Reload button. If the extension was already running, it automatically instruments the page.
• If there are calls to .createProgram, the UI will show a list
• Select a program to see its vertex shader and fragment shader
• Use the Pretty Print icon to make the code more readable
• Use the fullscreen button to make the code editor bigger
• Use the Star icon to apply the GLSL Optimiser
• Use the check mark icon next to each shader's name to toggle its visiblity
• Use the Eye icon to disable shader highlighting
• On the Textures tab, click on a texture to open a File Dialog to use another texture, or drag and drop a file into the texture.
• On the Setting tab, enable or disable texture monitoring and shader highlighting (for performance reasons)

TO-DO

As always: forks, pull requests and code critiques are welcome!

• Detect when the page is reloaded or changed Issue #1
• Highlight shaders when hovering over list item Issue #3
• Check why some pages don't load (like http://david.li/flow/) Issue #4
• Figure out why it doesn't .postMessage the first time it's injected Issue #5
• Figure out why it doesn't work on Android over remote debugging Issue #6

Nice to have:

• Save to disk (?) - Not possible for now with the DevTools API
• Add uniform tracking to display values fed to the shader
• Integrating @aras-p + @zz85 GLSL Optimizer Added

Changelog

See detailed change log

License

MIT licensed

Copyright (C) 2015 Jaume Sanchez Elias, http://www.clicktorelease.com