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

NAME

sign - extract the sign of the parameter

DECLARATION

genType sign(genType x);

genIType sign(genIType x);

genDType sign(genDType x);

PARAMETERS

x
Specify the value from which to extract the sign.

DESCRIPTION

sign returns -1.0 if x is less than 0.0, 0.0 if x is equal to 0.0, and +1.0 if x is greater than 0.0.

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
sign (genType) - - ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
sign (genIType) - - - - ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
sign (genDType) - - - - - - ✔ ✔ ✔ ✔ ✔ ✔

SEE ALSO

abs()

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]