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8 lines
452 B
Markdown
8 lines
452 B
Markdown
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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.
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```glsl
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uniform vec2 u_resolution; // Canvas size (width,height)
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uniform vec2 u_mouse; // mouse position in screen pixels
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uniform float u_time; // Time in seconds since load
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```
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