1991-2006
Silicon Graphics, Inc.
glPointSize
3G
glPointSize
specify the diameter of rasterized points
C Specification
void glPointSize
GLfloat size
Parameters
size
Specifies the diameter of rasterized points.
The initial value is 1.
Description
glPointSize specifies the rasterized diameter of points. If point size mode
is disabled (see glEnable with parameter
GL_PROGRAM_POINT_SIZE), this value will be used to rasterize points. Otherwise,
the value written to the shading language built-in variable gl_PointSize will be used.
Notes
The point size specified by glPointSize is always returned when
GL_POINT_SIZE is queried. Clamping and rounding for points have no effect on the specified value.
Errors
GL_INVALID_VALUE is generated if size is less than or equal to 0.
Associated Gets
glGet with argument GL_POINT_SIZE_RANGE
glGet with argument GL_POINT_SIZE_GRANULARITY
glGet with argument GL_POINT_SIZE
glGet with argument GL_POINT_FADE_THRESHOLD_SIZE
glIsEnabled with argument GL_PROGRAM_POINT_SIZE
See Also
glEnable,
glPointParameter
Copyright
Copyright 1991-2006
Silicon Graphics, Inc. This document is licensed under the SGI
Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/.