glHint man page on OpenBSD

Man page or keyword search:  
man Server   11362 pages
apropos Keyword Search (all sections)
Output format
OpenBSD logo
[printable version]

GLHINT(3G)							    GLHINT(3G)

NAME
       glHint - specify implementation-specific hints

C SPECIFICATION
       void glHint( GLenum target,
	    GLenum mode )

PARAMETERS
       target Specifies a symbolic constant indicating the behavior to be
	      controlled.  GL_FOG_HINT,	     GL_LINE_SMOOTH_HINT,
	      GL_PERSPECTIVE_CORRECTION_HINT, GL_POINT_SMOOTH_HINT, and
	      GL_POLYGON_SMOOTH_HINT are accepted.

       mode   Specifies a symbolic constant indicating the desired behavior.
	      GL_FASTEST, GL_NICEST, and GL_DONT_CARE are accepted.

DESCRIPTION
       Certain aspects of GL behavior, when there is room for interpretation,
       can be controlled with hints.  A hint is specified with two arguments.
       target is a symbolic constant indicating the behavior to be controlled,
       and mode is another symbolic constant indicating the desired behavior.
       The initial value for each target is GL_DONT_CARE.  mode can be one of
       the following:

       GL_FASTEST	   The most efficient option should be chosen.

       GL_NICEST	   The most correct, or highest quality, option should
			   be chosen.

       GL_DONT_CARE	   No preference.

       Though the implementation aspects that can be hinted are well defined,
       the interpretation of the hints depends on the implementation.  The
       hint aspects that can be specified with target, along with suggested
       semantics, are as follows:

       GL_FOG_HINT	   Indicates the accuracy of fog calculation.  If
			   per-pixel fog calculation is not efficiently
			   supported by the GL implementation, hinting
			   GL_DONT_CARE or GL_FASTEST can result in per-vertex
			   calculation of fog effects.

       GL_LINE_SMOOTH_HINT Indicates the sampling quality of antialiased
			   lines.  If a larger filter function is applied,
			   hinting GL_NICEST can result in more pixel
			   fragments being generated during rasterization,

       GL_PERSPECTIVE_CORRECTION_HINT
			   Indicates the quality of color and texture
			   coordinate interpolation.  If perspective-corrected
			   parameter interpolation is not efficiently
			   supported by the GL implementation, hinting
			   GL_DONT_CARE or GL_FASTEST can result in simple
			   linear interpolation of colors and/or texture
			   coordinates.

       GL_POINT_SMOOTH_HINT
			   Indicates the sampling quality of antialiased
			   points.  If a larger filter function is applied,
			   hinting GL_NICEST can result in more pixel
			   fragments being generated during rasterization,

       GL_POLYGON_SMOOTH_HINT
			   Indicates the sampling quality of antialiased
			   polygons.  Hinting GL_NICEST can result in more
			   pixel fragments being generated during
			   rasterization, if a larger filter function is
			   applied.

NOTES
       The interpretation of hints depends on the implementation.  Some
       implementations ignore glHint settings.

ERRORS
       GL_INVALID_ENUM is generated if either target or mode is not an
       accepted value.

       GL_INVALID_OPERATION is generated if glHint is executed between the
       execution of glBegin and the corresponding execution of glEnd.

								 March 1, 2011
[top]

List of man pages available for OpenBSD

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net