GLAPI/glPointSize

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glPointSize
Core in version 4.4
Core since version 1.0

glPointSize: specify the diameter of rasterized points

Function Definition

 void glPointSize(GLfloat size​);
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(GL_PROGRAM_POINT_SIZE), 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/.