GLPOINTPARAMETER(3G) OpenGL 3.3 GLPOINTPARAMETER(3G)
NAME
glPointParameter - specify point parameters
C SPECIFICATION
void glPointParameterf(GLenum pname, GLfloat param);
void glPointParameteri(GLenum pname, GLint param);
PARAMETERS
pname
Specifies a single-valued point parameter. GL_POINT_FADE_THRESHOLD_SIZE, and GL_POINT_SPRITE_COORD_ORIGIN are accepted.
param
Specifies the value that pname will be set to.
C SPECIFICATION
void glPointParameterfv(GLenum pname, const GLfloat * params);
void glPointParameteriv(GLenum pname, const GLint * params);
PARAMETERS
pname
Specifies a point parameter. GL_POINT_FADE_THRESHOLD_SIZE, and GL_POINT_SPRITE_COORD_ORIGIN are accepted.
params
Specifies the value to be assigned to pname..
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
SEE ALSO
glPointSize()
COPYRIGHT
Copyright (C) 1991-2006 Silicon Graphics, Inc. Copyright (C) 2010 Khronos Group. This document is licensed under the SGI Free Software B
License. For details, see http://oss.sgi.com/projects/FreeB/.
OpenGL 3.3 03/08/2011 GLPOINTPARAMETER(3G)
