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gldrawarrays(3g) [linux man page]

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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GLDRAWARRAYS(3G)														  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_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_TRIANGLES, GL_QUAD_STRIP, GL_QUADS, and GL_POLYGON 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  indi-
       vidual 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 primi-
       tives. If GL_VERTEX_ARRAY is not enabled, no geometric primitives are generated.

       Vertex attributes that are modified by glDrawArrays have an unspecified value after glDrawArrays returns. For example, if GL_COLOR_ARRAY is
       enabled, the value of the current color is undefined after glDrawArrays executes. Attributes that aren't modified remain well defined.

NOTES

       glDrawArrays is available only if the GL version is 1.1 or greater.

       glDrawArrays  is  included  in  display	lists. If glDrawArrays is entered into a display list, the necessary array data (determined by the
       array pointers and enables) is also entered into the display list. Because the array pointers and enables are client-side state, their val-
       ues affect display lists when the lists are created, not when the lists are executed.

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 glDrawArrays is executed between the execution of glBegin and the corresponding glEnd.

SEE ALSO

       glArrayElement(3G),    glColorPointer(3G),    glDrawElements(3G),    glDrawRangeElements(3G),   glEdgeFlagPointer(3G),	glGetPointerv(3G),
       glIndexPointer(3G), glInterleavedArrays(3G), glNormalPointer(3G), glTexCoordPointer(3G), glVertexPointer(3G)

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