thebookofshaders/03/SUMMARY.md

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2016-04-23 15:58:02 +00:00
Learn how to use Uniform variables. Uniform variables, or simply *uniforms* are the variables that carry information equally accessible from all of the threads of your shader. The [GSLS editor](http://editor.thebookofshaders.com/) has three uniforms set up for you.
```glsl
uniform vec2 u_resolution; // Canvas size (width,height)
uniform vec2 u_mouse; // mouse position in screen pixels
uniform float u_time; // Time in seconds since load
```