glPointSize - specify the diameter of rasterized points

void glPointSize(GLfloat size);

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

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.

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.

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

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

OpenGL Version
Function / Feature Name 2.0 2.1 3.0 3.1 3.2 3.3 4.0 4.1 4.2 4.3 4.4 4.5

glEnable(), glPointParameter()

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

Copyright © 1991-2006 Silicon Graphics, Inc.
Copyright © 2010-2014 Khronos Group
05/17/2020 [FIXME: source]