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

NAME
       gl_PointCoord - contains the coordinate of a fragment within a point

DECLARATION
       in vec2 gl_PointCoord ;.SH "DESCRIPTION"

       gl_PointCoord is a fragment language input variable that contains the
       two-dimensional coordinates indicating where within a point primitive
       the current fragment is located. If the current primitive is not a
       point, then values read from gl_PointCoord are undefined.

       gl_PointCoord.s ranges from 0.0 to 1.0 across the point horizontally
       from left to right. If GL_POINT_SPRITE_COORD_ORIGIN is GL_LOWER_LEFT,
       gl_PointCoord.t varies from 0.0 to 1.0 vertically from bottom to top.
       Otherwise, if GL_POINT_SPRITE_COORD_ORIGIN is GL_UPPER_LEFT then
       gl_PointCoord.t varies from 0.0 to 1.0 vertically from top to bottom.
       The default value of GL_POINT_SPRITE_COORD_ORIGIN is GL_UPPER_LEFT.

VERSION SUPPORT

       +--------------+-----------------------------------------------------------------------------------+
       |              |                          OpenGL Shading Language Version                          |
       +--------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |Variable Name | 1.10 | 1.20 | 1.30 | 1.40 | 1.50 | 3.30 | 4.00 | 4.10 | 4.20 | 4.30 | 4.40 | 4.50 |
       +--------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |gl_PointCoord | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  |
       +--------------+------+------+------+------+------+------+------+------+------+------+------+------+

SEE ALSO
       gl_FragCoord(), gl_FragDepth()

COPYRIGHT
       Copyright (C) 2011-2014 Khronos Group. This material may be distributed
       subject to the terms and conditions set forth in the Open Publication
       License, v 1.0, 8 June 1999.  http://opencontent.org/openpub/.

COPYRIGHT
       Copyright (C) 2011-2014 Khronos Group

[FIXME: source]                   05/21/2022                 GL_POINTCOORD(3G)