gldrawelements(3g) [centos man page]

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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GLDRAWARRAYS(3G)                                                  [FIXME: manual]                                                 GLDRAWARRAYS(3G)

NAME

       glDrawArrays - render primitives from array data

C SPECIFICATION

       void glDrawArrays(GLenum mode, GLint first, GLsizei count);

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.

       first
           Specifies the starting index in the enabled arrays.

       count
           Specifies the number of indices to be rendered.

DESCRIPTION

       glDrawArrays specifies multiple 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 glDrawArrays.

       When glDrawArrays 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 glDrawArrays have an unspecified value after glDrawArrays 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 count 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.

       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.

SEE ALSO

       glDrawArraysInstanced(), glDrawElements(), 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/.

[FIXME: source]                                                     05/30/2012                                                    GLDRAWARRAYS(3G)

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