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

NAME
       gl_TessLevelOuter - contains the outer tessellation levels for the
       current patch

DECLARATION
       // In tessellation control shaders


       out float gl_TessLevelOuter[4] ;

       // In tessellation evaluation shaders


       in float gl_TessLevelOuter[4] ;

DESCRIPTION
       Available only in the tessellation control and evaluation languages,
       gl_TessLevelOuter is used to assign values to the corresponding outer
       tesellation levels of the current patch. The values written into
       gl_TessLevelOuter by the tessellation control shader are used by the
       tessellation primitive generator to control primitive tessellation and
       may be read by the subsequent tessellation evaluation shader.

       As inputs to the tessellation evaluation shader, gl_TessLevelOuter
       contains the values written by the tessellation control shader, if
       present. If no tessellation control shader is present, it contains the
       default tessellation level.

VERSION SUPPORT

       +------------------+-----------------------------------------------------------------------------------+
       |                  |                          OpenGL Shading Language Version                          |
       +------------------+------+------+------+------+------+------+------+------+------+------+------+------+
       |Function 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_TessLevelOuter |  -   |  -   |  -   |  -   |  -   |  -   | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  |
       +------------------+------+------+------+------+------+------+------+------+------+------+------+------+

SEE ALSO
       gl_TessLevelInner(), gl_TessCoord()

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_TESSLEVELOUTER(3G)