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

NAME

inversesqrt - return the inverse of the square root of the parameter

DECLARATION

genType inversesqrt(genType x);

genDType inversesqrt(genDType x);

PARAMETERS

x
Specify the value of which to take the inverse of the square root.

DESCRIPTION

inversesqrt returns the inverse of the square root of x. i.e., the value 1x. Results are undefined if x0.

VERSION SUPPORT

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) - - - - - - ✔ ✔ ✔ ✔ ✔ ✔

SEE ALSO

pow(), sqrt()

COPYRIGHT

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/.

COPYRIGHT

Copyright © 2011-2014 Khronos Group
05/21/2015 [FIXME: source]