GLPOINTPARAMETER(3G)

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 | 4.6
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 https://khronos.org/registry/OpenGL-Refpages/LICENSES/LicenseRef-FreeB.txt.

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