GLPOINTPARAMETER

Section: [FIXME: manual] (3G)
Updated: 07/27/2020
Page Index
 

NAME

glPointParameter - specify point parameters  

C SPECIFICATION

void glPointParameterf(GLenum pname, GLfloat param);
void glPointParameteri(GLenum pname, GLint param);
void glPointParameterfv(GLenum pname, const GLfloat * params);
void glPointParameteriv(GLenum pname, const GLint * params);
 

PARAMETERS

pname

Specifies a single-valued point parameter. GL_POINT_FADE_THRESHOLD_SIZE, and GL_POINT_SPRITE_COORD_ORIGIN are accepted.

param

For glPointParameterf and glPointParameteri, specifies the value that pname will be set to.

params

For glPointParameterfv and glPointParameteriv, specifies a pointer to an array where the value or values to be assigned to pname are stored.
 

DESCRIPTION

The following values are accepted for pname:

GL_POINT_FADE_THRESHOLD_SIZE

params is a single floating-point value that specifies the threshold value to which point sizes are clamped if they exceed the specified value. The default value is 1.0.

GL_POINT_SPRITE_COORD_ORIGIN

params is a single enum specifying the point sprite texture coordinate origin, either GL_LOWER_LEFT or GL_UPPER_LEFT. The default value is GL_UPPER_LEFT.

 

ERRORS

GL_INVALID_VALUE is generated if the value specified for GL_POINT_FADE_THRESHOLD_SIZE is less than zero.

GL_INVALID_ENUM is generated If the value specified for GL_POINT_SPRITE_COORD_ORIGIN is not GL_LOWER_LEFT or GL_UPPER_LEFT.  

ASSOCIATED GETS

glGet() with argument GL_POINT_FADE_THRESHOLD_SIZE

glGet() with argument GL_POINT_SPRITE_COORD_ORIGIN  

VERSION SUPPORT

OpenGL Version
Function / Feature Name 2.0 2.1 3.0 3.1 3.2 3.3 4.0 4.1 4.2 4.3 4.4 4.5
glPointParameterf
glPointParameterfv
glPointParameteri
glPointParameteriv

 

SEE ALSO

glPointSize()  

COPYRIGHT

Copyright © 1991-2006 Silicon Graphics, Inc. Copyright © 2010-2014 Khronos Group. This document is licensed under the SGI Free Software B License. For details, see m[blue]http://oss.sgi.com/projects/FreeB/m[].  

COPYRIGHT


Copyright © 1991-2006 Silicon Graphics, Inc.
Copyright © 2010-2014 Khronos Group


 

Index

NAME
C SPECIFICATION
PARAMETERS
DESCRIPTION
ERRORS
ASSOCIATED GETS
VERSION SUPPORT
SEE ALSO
COPYRIGHT
COPYRIGHT