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GLPOLYGONSTIPPLE(3G)			  OpenGL Manual 		     GLPOLYGONSTIPPLE(3G)

NAME
       glPolygonStipple - set the polygon stippling pattern

C SPECIFICATION
       void glPolygonStipple(const GLubyte * pattern);

PARAMETERS
       pattern
	   Specifies a pointer to a 32 x 32 stipple pattern that will be unpacked from memory in
	   the same way that glDrawPixels() unpacks pixels.

DESCRIPTION
       Polygon stippling, like line stippling (see glLineStipple()), masks out certain fragments
       produced by rasterization, creating a pattern. Stippling is independent of polygon
       antialiasing.

       pattern is a pointer to a 32 x 32 stipple pattern that is stored in memory just like the
       pixel data supplied to a glDrawPixels() call with

       height and width both equal to 32, a pixel format of GL_COLOR_INDEX, and data type of
       GL_BITMAP. That is, the stipple pattern is represented as a 32 x 32 array of 1-bit color
       indices packed in unsigned bytes.  glPixelStore() parameters like GL_UNPACK_SWAP_BYTES and
       GL_UNPACK_LSB_FIRST affect the assembling of the bits into a stipple pattern. Pixel
       transfer operations (shift, offset, pixel map) are not applied to the stipple image,
       however.

       If a non-zero named buffer object is bound to the GL_PIXEL_UNPACK_BUFFER target (see
       glBindBuffer()) while a stipple pattern is specified, pattern is treated as a byte offset
       into the buffer object's data store.

       To enable and disable polygon stippling, call glEnable() and glDisable() with argument
       GL_POLYGON_STIPPLE. Polygon stippling is initially disabled. If it's enabled, a rasterized
       polygon fragment with window coordinates x w and y w is sent to the next stage of the GL
       if and only if the (x w % 32)th bit in the (y w % 32)th row of the stipple pattern is 1
       (one). When polygon stippling is disabled, it is as if the stipple pattern consists of all
       1's.

ERRORS
       GL_INVALID_OPERATION is generated if a non-zero buffer object name is bound to the
       GL_PIXEL_UNPACK_BUFFER target and the buffer object's data store is currently mapped.

       GL_INVALID_OPERATION is generated if a non-zero buffer object name is bound to the
       GL_PIXEL_UNPACK_BUFFER target and the data would be unpacked from the buffer object such
       that the memory reads required would exceed the data store size.

       GL_INVALID_OPERATION is generated if glPolygonStipple is executed between the execution of
       glBegin() and the corresponding execution of glEnd().

ASSOCIATED GETS
       glGetPolygonStipple()

       glIsEnabled() with argument GL_POLYGON_STIPPLE

       glGet() with argument GL_PIXEL_UNPACK_BUFFER_BINDING

SEE ALSO
       glDrawPixels(), glLineStipple(), glPixelStore(), glPixelTransfer()

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			     GLPOLYGONSTIPPLE(3G)
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