glPointSize

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Specify the diameter of rasterized points.

C Specification[edit]

void glPointSize( GLfloat size );


Parameters[edit]

size - Specifies the diameter of rasterized points. The initial value is 1.


Description[edit]

 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 variablegl_PointSizewill be used.


Notes[edit]

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[edit]

 GL_INVALID_VALUE is generated if size is less than or equal to 0.


Associated Gets[edit]

 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 


Version Support[edit]

 glPointSize  2.0+

See Also[edit]

 glEnable , glPointParameter 


Copyright[edit]

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/.