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    <p>The uniforms you can use in your shaders all depend on how you setup your material: have you enable lights ? vertex colors ? skinning ? ...</p> <p>Three JS creates a program that depends heavily on some defines (#ifdef in the code) that are injected at the top of the program depending on the parameters I have spoken about above.</p> <p>I found the best way to know what is going on is to print the shaders that three JS generates: as you already know GLSL, you will understand easily what the code means and what uniforms you can use. Look for <code>buildProgram</code> in three JS sources, then (r57):</p> <pre><code>var glFragmentShader = getShader( "fragment", prefix_fragment + fragmentShader ); var glVertexShader = getShader( "vertex", prefix_vertex + vertexShader ); </code></pre> <p>After those lines, add:</p> <pre><code>console.log("fragment shader:", prefix_fragment + fragmentShader); console.log("vertex shader:", prefix_vertex + vertexShader); </code></pre> <p>And you will be able to see the content of the shaders.</p> <p>[EDIT] Rereading your question, I realize I answered a bit off, as you create your own shaders... </p> <p>You can have a look at lines 6463 and 6490 of WebGLRenderer (<a href="https://github.com/mrdoob/three.js/blob/master/src/renderers/WebGLRenderer.js#L6463">https://github.com/mrdoob/three.js/blob/master/src/renderers/WebGLRenderer.js#L6463</a>): you will see standard uniforms / attributes that three JS inject in your shaders. You can have a look to the Wiki where you have an entry about that (<a href="https://github.com/mrdoob/three.js/wiki">https://github.com/mrdoob/three.js/wiki</a> - Which default attributes / uniforms / varyings are available in custom shaders?) but it directs you to the lines I outlined above.</p>
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    1. COThanks for your answer, people on SO are really helpful :) The source lines you pointed out answered my question. Good stuff!
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