glMultiDrawArrays man page on Darwin
[printable version]
GLMULTIDRAWARRAYS(3G) OpenGL 3.3 GLMULTIDRAWARRAYS(3G)
NAME
glMultiDrawArrays - render multiple sets of primitives from array data
C SPECIFICATION
void glMultiDrawArrays(GLenum mode, const GLint * first,
const GLsizei * count, GLsizei primcount);
PARAMETERS
mode
Specifies what kind of primitives to render. Symbolic constants
GL_POINTS, GL_LINE_STRIP, GL_LINE_LOOP, GL_LINES,
GL_LINE_STRIP_ADJACENCY, GL_LINES_ADJACENCY, GL_TRIANGLE_STRIP,
GL_TRIANGLE_FAN, GL_TRIANGLES, GL_TRIANGLE_STRIP_ADJACENCY and
GL_TRIANGLES_ADJACENCY are accepted.
first
Points to an array of starting indices in the enabled arrays.
count
Points to an array of the number of indices to be rendered.
primcount
Specifies the size of the first and count
DESCRIPTION
glMultiDrawArrays 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 glMultiDrawArrays.
glMultiDrawArrays behaves identically to glDrawArrays() except that
primcount separate ranges of elements are specified instead.
When glMultiDrawArrays is called, it uses count sequential elements
from each enabled array to construct a sequence of geometric
primitives, beginning with element first. mode specifies what kind of
primitives are constructed, and how the array elements construct those
primitives.
Vertex attributes that are modified by glMultiDrawArrays have an
unspecified value after glMultiDrawArrays returns. Attributes that
aren't modified remain well defined.
NOTES
GL_LINE_STRIP_ADJACENCY, GL_LINES_ADJACENCY,
GL_TRIANGLE_STRIP_ADJACENCY and GL_TRIANGLES_ADJACENCY are available
only if the GL version is 3.2 or greater.
ERRORS
GL_INVALID_ENUM is generated if mode is not an accepted value.
GL_INVALID_VALUE is generated if primcount is negative.
GL_INVALID_OPERATION is generated if a non-zero buffer object name is
bound to an enabled array and the buffer object's data store is
currently mapped.
SEE ALSO
glDrawElements(), glDrawRangeElements()
COPYRIGHT
Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed
under the SGI Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/.
OpenGL 3.3 03/08/2011 GLMULTIDRAWARRAYS(3G)
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