'\" t
.\"     Title: mix
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: 05/21/2015
.\"    Manual: [FIXME: manual]
.\"    Source: [FIXME: source]
.\"  Language: English
.\"
.TH "MIX" "3G" "05/21/2015" "[FIXME: source]" "[FIXME: manual]"
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.nh
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.\" * MAIN CONTENT STARTS HERE *
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.SH "NAME"
mix \- linearly interpolate between two values
.SH "DECLARATION"
.HP \w'genType\ mix('u
.BI "genType mix(genType\ " "x" ", genType\ " "y" ", genType\ " "a" ");"
.HP \w'genType\ mix('u
.BI "genType mix(genType\ " "x" ", genType\ " "y" ", float\ " "a" ");"
.HP \w'genDType\ mix('u
.BI "genDType mix(genDType\ " "x" ", genDType\ " "y" ", genDType\ " "a" ");"
.HP \w'genDType\ mix('u
.BI "genDType mix(genDType\ " "x" ", genDType\ " "y" ", double\ " "a" ");"
.HP \w'genType\ mix('u
.BI "genType mix(genType\ " "x" ", genType\ " "y" ", genBType\ " "a" ");"
.HP \w'genDType\ mix('u
.BI "genDType mix(genDType\ " "x" ", genDType\ " "y" ", genBType\ " "a" ");"
.HP \w'genIType\ mix('u
.BI "genIType mix(genIType\ " "x" ", genIType\ " "y" ", genBType\ " "a" ");"
.HP \w'genUType\ mix('u
.BI "genUType mix(genUType\ " "x" ", genUType\ " "y" ", genBType\ " "a" ");"
.HP \w'genBType\ mix('u
.BI "genBType mix(genBType\ " "x" ", genBType\ " "y" ", genBType\ " "a" ");"
.SH "PARAMETERS"
.PP
\fIx\fR
.RS 4
Specify the start of the range in which to interpolate\&.
.RE
.PP
\fIy\fR
.RS 4
Specify the end of the range in which to interpolate\&.
.RE
.PP
\fIa\fR
.RS 4
Specify the value to use to interpolate between
\fIx\fR
and
\fIy\fR\&.
.RE
.SH "DESCRIPTION"
.PP
\fBmix\fR
performs a linear interpolation between
\fIx\fR
and
\fIy\fR
using
\fIa\fR
to weight between them\&. The return value is computed as $x \etimes (1 \- a) + y \etimes a$\&.
.PP
The variants of
\fBmix\fR
where
\fIa\fR
is
\fBgenBType\fR
select which vector each returned component comes from\&. For a component of
\fIa\fR
that is false, the corresponding component of
\fIx\fR
is returned\&. For a component of
\fIa\fR
that is true, the corresponding component of
\fIy\fR
is returned\&. Components of
\fIx\fR
and
\fIy\fR
that are not selected are allowed to be invalid floating\-point values and will have no effect on the results\&.
.SH "VERSION SUPPORT"
.TS
allbox tab(:);
lB cB s s s s s s s s s s s
lB cB cB cB cB cB cB cB cB cB cB cB cB.
T{

T}:T{
\fBOpenGL Shading Language Version\fR
T}
T{
\fBFunction Name\fR
T}:T{
\fB1\&.10\fR
T}:T{
\fB1\&.20\fR
T}:T{
\fB1\&.30\fR
T}:T{
\fB1\&.40\fR
T}:T{
\fB1\&.50\fR
T}:T{
\fB3\&.30\fR
T}:T{
\fB4\&.00\fR
T}:T{
\fB4\&.10\fR
T}:T{
\fB4\&.20\fR
T}:T{
\fB4\&.30\fR
T}:T{
\fB4\&.40\fR
T}:T{
\fB4\&.50\fR
T}
.T&
l c c c c c c c c c c c c
l c c c c c c c c c c c c
l c c c c c c c c c c c c.
T{
mix(genType)
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}
T{
mix(genDType)
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}
T{
mix(genIType), mix(genUType), mix(genBType)
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
✔
T}
.TE
.sp
.SH "SEE ALSO"
.PP
\fBmin\fR(),
\fBmax\fR()
.SH "COPYRIGHT"
.PP
Copyright
\(co
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\&.
\m[blue]\fBhttp://opencontent\&.org/openpub/\fR\m[]\&.
.SH "COPYRIGHT"
.br
Copyright \(co 2011-2014 Khronos Group
.br