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GLDRAWELEMENTS(3G)			  OpenGL Manual 		       GLDRAWELEMENTS(3G)

NAME
       glDrawElements - render primitives from array data

C SPECIFICATION
       void glDrawElements(GLenum mode, GLsizei count, GLenum type, const GLvoid * indices);

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,
	   GL_TRIANGLES_ADJACENCY and GL_PATCHES are accepted.

       count
	   Specifies the number of elements to be rendered.

       type
	   Specifies the type of the values in indices. Must be one of GL_UNSIGNED_BYTE,
	   GL_UNSIGNED_SHORT, or GL_UNSIGNED_INT.

       indices
	   Specifies a pointer to the location where the indices are stored.

DESCRIPTION
       glDrawElements specifies multiple geometric primitives with very few subroutine calls.
       Instead of calling a GL function to pass each individual vertex, normal, texture
       coordinate, edge flag, or color, you can prespecify separate arrays of vertices, normals,
       and so on, and use them to construct a sequence of primitives with a single call to
       glDrawElements.

       When glDrawElements is called, it uses count sequential elements from an enabled array,
       starting at indices to construct a sequence of geometric primitives.  mode specifies what
       kind of primitives are constructed and how the array elements construct these primitives.
       If more than one array is enabled, each is used.

       Vertex attributes that are modified by glDrawElements have an unspecified value after
       glDrawElements returns. Attributes that aren't modified maintain their previous values.

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 count is negative.

       GL_INVALID_OPERATION is generated if a geometry shader is active and mode is incompatible
       with the input primitive type of the geometry shader in the currently installed program
       object.

       GL_INVALID_OPERATION is generated if a non-zero buffer object name is bound to an enabled
       array or the element array and the buffer object's data store is currently mapped.

SEE ALSO
       glDrawArrays(), glDrawElementsInstanced(), glDrawElementsBaseVertex(),
       glDrawRangeElements()

COPYRIGHT
       Copyright (C) 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/.

AUTHORS
       opengl.org

opengl.org				    06/10/2014			       GLDRAWELEMENTS(3G)
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