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) ; |
x
Specify the value to constrain.
minVal
Specify the lower end of the range into which to constrain x
.
maxVal
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) | - | - | - | - | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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. http://opencontent.org/openpub/.