thebookofshaders

mirror of https://github.com/patriciogonzalezvivo/thebookofshaders

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David Broder-Rodgers 14921e8264 Update uniform and varying glossary docs		7 years ago
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README.md	Update uniform and varying glossary docs	7 years ago

Uniform

Uniform variable qualifier.

uniform vec4 direction;

uniform variables contain read-only data shared from WebGL/OpenGL environment to a vertex or fragment shader.

The value is per primitive, so is useful for variables which remain constant along a primitive, frame or scene.