inversesqrt — return the inverse of the square root of the parameter
genType inversesqrt( | genType x); |
genDType inversesqrt( | genDType x); |
x Specify the value of which to take the inverse of the square root.
inversesqrt returns the inverse of the square root of x. i.e., the value . Results are undefined if .
| 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 |
| inversesqrt (genType) | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| inversesqrt (genDType) | - | - | - | - | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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