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.\"     Title: glMultiDrawArrays
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 01/03/2018
.\"    Manual: [FIXME: manual]
.\"    Source: [FIXME: source]
.\"  Language: English
.\"
.TH "GLMULTIDRAWARRAYS" "3G" "01/03/2018" "[FIXME: source]" "[FIXME: manual]"
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.SH "NAME"
glMultiDrawArrays \- render multiple sets of primitives from array data
.SH "C SPECIFICATION"
.HP \w'void\ glMultiDrawArrays('u
.BI "void glMultiDrawArrays(GLenum\ " "mode" ", const\ GLint\ *\ " "first" ", const\ GLsizei\ *\ " "count" ", GLsizei\ " "drawcount" ");"
.SH "PARAMETERS"
.PP
\fImode\fR
.RS 4
Specifies what kind of primitives to render\&. Symbolic constants
\fBGL_POINTS\fR,
\fBGL_LINE_STRIP\fR,
\fBGL_LINE_LOOP\fR,
\fBGL_LINES\fR,
\fBGL_LINE_STRIP_ADJACENCY\fR,
\fBGL_LINES_ADJACENCY\fR,
\fBGL_TRIANGLE_STRIP\fR,
\fBGL_TRIANGLE_FAN\fR,
\fBGL_TRIANGLES\fR,
\fBGL_TRIANGLE_STRIP_ADJACENCY\fR,
\fBGL_TRIANGLES_ADJACENCY\fR
and
\fBGL_PATCHES\fR
are accepted\&.
.RE
.PP
\fIfirst\fR
.RS 4
Points to an array of starting indices in the enabled arrays\&.
.RE
.PP
\fIcount\fR
.RS 4
Points to an array of the number of indices to be rendered\&.
.RE
.PP
\fIdrawcount\fR
.RS 4
Specifies the size of the first and count
.RE
.SH "DESCRIPTION"
.PP
\fBglMultiDrawArrays\fR
specifies multiple sets of geometric primitives with very few subroutine calls\&. Instead of calling a GL procedure to pass each individual vertex, normal, texture coordinate, edge flag, or color, you can prespecify separate arrays of vertices, normals, and colors and use them to construct a sequence of primitives with a single call to
\fBglMultiDrawArrays\fR\&.
.PP
\fBglMultiDrawArrays\fR
behaves identically to
\fBglDrawArrays\fR()
except that
\fIdrawcount\fR
separate ranges of elements are specified instead\&.
.PP
When
\fBglMultiDrawArrays\fR
is called, it uses
\fIcount\fR
sequential elements from each enabled array to construct a sequence of geometric primitives, beginning with element
\fIfirst\fR\&.
\fImode\fR
specifies what kind of primitives are constructed, and how the array elements construct those primitives\&.
.PP
Vertex attributes that are modified by
\fBglMultiDrawArrays\fR
have an unspecified value after
\fBglMultiDrawArrays\fR
returns\&. Attributes that aren\*(Aqt modified remain well defined\&.
.SH "NOTES"
.PP
\fBGL_LINE_STRIP_ADJACENCY\fR,
\fBGL_LINES_ADJACENCY\fR,
\fBGL_TRIANGLE_STRIP_ADJACENCY\fR
and
\fBGL_TRIANGLES_ADJACENCY\fR
are available only if the GL version is 3\&.2 or greater\&.
.SH "ERRORS"
.PP
\fBGL_INVALID_ENUM\fR
is generated if
\fImode\fR
is not an accepted value\&.
.PP
\fBGL_INVALID_VALUE\fR
is generated if
\fIdrawcount\fR
is negative\&.
.PP
\fBGL_INVALID_OPERATION\fR
is generated if a non\-zero buffer object name is bound to an enabled array and the buffer object\*(Aqs data store is currently mapped\&.
.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 Version\fR
T}
T{
\fBFunction / Feature Name\fR
T}:T{
\fB2\&.0\fR
T}:T{
\fB2\&.1\fR
T}:T{
\fB3\&.0\fR
T}:T{
\fB3\&.1\fR
T}:T{
\fB3\&.2\fR
T}:T{
\fB3\&.3\fR
T}:T{
\fB4\&.0\fR
T}:T{
\fB4\&.1\fR
T}:T{
\fB4\&.2\fR
T}:T{
\fB4\&.3\fR
T}:T{
\fB4\&.4\fR
T}:T{
\fB4\&.5\fR
T}
.T&
l c c c c c c c c c c c c.
T{
\fBglMultiDrawArrays\fR
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 1
.SH "SEE ALSO"
.PP
\fBglDrawElements\fR(),
\fBglDrawRangeElements\fR()
.SH "COPYRIGHT"
.PP
Copyright
\(co
1991\-2006 Silicon Graphics, Inc\&. Copyright
\(co
2010\-2014 Khronos Group\&. This document is licensed under the SGI Free Software B License\&. For details, see
\m[blue]\fBhttp://oss\&.sgi\&.com/projects/FreeB/\fR\m[]\&.
.SH "COPYRIGHT"
.br
Copyright \(co 2010-2014 Khronos Group
.br