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

NAME

mix - linearly interpolate between two values

DECLARATION

genType mix(genType x, genType y, genType a);

genType mix(genType x, genType y, float a);

genDType mix(genDType x, genDType y, genDType a);

genDType mix(genDType x, genDType y, double a);

genType mix(genType x, genType y, genBType a);

genDType mix(genDType x, genDType y, genBType a);

genIType mix(genIType x, genIType y, genBType a);

genUType mix(genUType x, genUType y, genBType a);

genBType mix(genBType x, genBType y, genBType a);

PARAMETERS

x

Specify the start of the range in which to interpolate.

y

Specify the end of the range in which to interpolate.

a

Specify the value to use to interpolate between x and y.

DESCRIPTION

mix performs a linear interpolation between x and y using a to weight between them. The return value is computed as $x \times (1 - a) + y \times a$.

The variants of mix where a is genBType select which vector each returned component comes from. For a component of a that is false, the corresponding component of x is returned. For a component of a that is true, the corresponding component of y is returned. Components of x and y that are not selected are allowed to be invalid floating-point values and will have no effect on the results.

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
mix(genType) ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
mix(genDType) - - - - - - ✔ ✔ ✔ ✔ ✔ ✔
mix(genIType), mix(genUType), mix(genBType) - - - - - - - - - - - ✔

SEE ALSO

min(), max()

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]