log2 — return the base 2 logarithm of the parameter
genType log2( | genType x); |
x Specify the value of which to take the base 2 logarithm.
log2 returns the base 2 logarithm of x. i.e., the value which satisfies . 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 |
| log2 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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