CLAMP(3G) [FIXME: manual] CLAMP(3G)

clamp - constrain a value to lie between two further values

genType clamp(genType x, genType minVal, genType maxVal);

genType clamp(genType x, float minVal, float maxVal);

genDType clamp(genDType x, genDType minVal, genDType maxVal);

genDType clamp(genDType x, double minVal, double maxVal);

genIType clamp(genIType x, genIType minVal, genIType maxVal);

genIType clamp(genIType x, int minVal, int maxVal);

genUType clamp(genUType x, genUType minVal, genUType maxVal);

genUType clamp(genUType x, uint minVal, uint maxVal);

Specify the value to constrain.


Specify the lower end of the range into which to constrain x.


Specify the upper end of the range into which to constrain x.

clamp returns the value of x constrained to the range minVal to maxVal. The returned value is computed as min()(max()(x, minVal), maxVal).

OpenGL Shading Language Version
Function Name 1.10 1.20 1.30 1.40 1.50 3.30 4.00 4.10 4.20 4.30 4.40 4.50
clamp (genType)
clamp (genIType) - -
clamp (genUType) - -
clamp (genDType) - - - - - -

min(), max()

Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999.

Copyright © 2011-2014 Khronos Group
05/17/2020 [FIXME: source]