thebookofshaders/glossary/uniform/README.md

## Uniform
Uniform variable qualifier.

### Example
```glsl
uniform vec4 direction;
```

### Description
```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.

### See Also
[attribute](/glossary/?search=attribute), [const](/glossary/?search=const), [varying](/glossary/?search=varying), [Chapter 03: Uniforms](/03/)
textures 10 years ago			`## Uniform`
Update uniform and varying glossary docs 7 years ago			`Uniform variable qualifier.`
textures 10 years ago
Update uniform and varying glossary docs 7 years ago			`### Example`
			```glsl
			`uniform vec4 direction;`
			```
finishing matrix 9 years ago
			`### Description`
Update uniform and varying glossary docs 7 years ago			```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.`
finishing matrix 9 years ago
			`### See Also`
Update uniform and varying glossary docs 7 years ago			`[attribute](/glossary/?search=attribute), [const](/glossary/?search=const), [varying](/glossary/?search=varying), [Chapter 03: Uniforms](/03/)`