Name

mix — linearly interpolate between two values

Declaration

genType mix(genType x,
 genType y,
 genType a);
 
genType mix(genType x,
 genType y,
 float a);
 
genType mix(genType x,
 genType 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 follows: x ⋅ ( 1 − a ) + y ⋅ a .

For the variants of mix where a is genBType, elements for which a[i] is false, the result for that element is taken from x, and where a[i] is true, it will be taken from y. 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 ES Shading Language Version
Function Name 1.00 3.00
mix (genType)✔✔
mix (genBType)-✔

See Also

min, max

Copyright

Copyright © 2011-2013 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.