glPointParameter : PyOpenGL 3.1.4 GL Man Pages

specify point parameters

Signature

glPointParameter( )->

glPointParameterf( GLenum ( pname ) , GLfloat ( param ) )-> void

glPointParameterf( pname , param )

glPointParameterfv( GLenum ( pname ) , const GLfloat * ( params ) )-> void

glPointParameterfv( pname , params )

glPointParameteri( GLenum ( pname ) , GLint ( param ) )-> void

glPointParameteri( pname , param )

glPointParameteriv( GLenum ( pname ) , const GLint * ( params ) )-> void

glPointParameteriv( pname , params )

Parameters

Variables	Description
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

glPointParameterf
glPointParameterfv
glPointParameteri
glPointParameteriv

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

http://oss.sgi.com/projects/FreeB/

Sample Code References

The following code samples have been found which appear to reference the functions described here. Take care that the code may be old, broken or not even use PyOpenGL.

glPointParameterf

OpenGLContext OpenGLContext/scenegraph/pointset.py Lines: 12, 13, 75, 76, 77, 84, 85, 86

Visvis core/line.py Lines: 100, 101

glPointParameterfv

OpenGLContext OpenGLContext/scenegraph/pointset.py Lines: 15, 16, 78, 87

glPointParameter