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| {{infobox feature
| | #REDIRECT [[Core Language (GLSL)#Dynamically uniform expression]] |
| | core = 4.0
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| A '''Dynamically Uniform Expression''' is a [[GLSL]] expression in which all invocations of that shader within a particular rendering command will compute the same value. This concept only matters in GLSL 4.00 and above.
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| == Definition ==
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| === Examples ===
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| == Uses ==
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| There are places where [[GLSL]] requires the expression to be dynamically uniform. All of the following must use a dynamically uniform expression:
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| * The array index for [[GLSL Type#Opaque arrays|arrays of opaque types]].
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| * The index to buffer-backed interface blocks.
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| * In [[Compute Shaders]], the expressions leading to the execution of a {{code|barrier()}} call. So if there is a loop or a conditional statement or somesuch, all of these conditions must be dynamically uniform expressions, so that every compute shader invocation encounters every {{code|barrier()}} statement in the same sequence and the same number of times.
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| {{stub}}
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| [[Category:OpenGL Shading Language]]
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