glPointSize - specify the diameter of rasterized points

glGet() with argument GL_POINT_SIZE_RANGEglGet() with argument GL_POINT_SIZE_GRANULARITYglGet() with argument GL_POINT_SIZEglGet() with argument GL_POINT_FADE_THRESHOLD_SIZEglIsEnabled() with argument GL_PROGRAM_POINT_SIZE

voidglPointSize(GLfloatsize);

       Copyright © 1991-2006 Silicon Graphics, Inc.
       Copyright © 2010-2014 Khronos Group

[FIXME: source]                                    11/18/2024                                    GLPOINTSIZE(3G)

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.

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

       glPointSize - specify the diameter of rasterized points

       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.

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

glEnable(), glPointParameter()

       ┌─────────────┬───────────────────────────────────────────────────────────────────────┐
       │             │                OpenGLVersion                                         │
       ├─────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
       │ Function    │ 2.0 │ 2.1 │ 3.0 │ 3.1 │ 3.2 │ 3.3 │ 4.0 │ 4.1 │ 4.2 │ 4.3 │ 4.4 │ 4.5 │
       │ /           │     │     │     │     │     │     │     │     │     │     │     │     │
       │ Feature     │     │     │     │     │     │     │     │     │     │     │     │     │
       │ Name        │     │     │     │     │     │     │     │     │     │     │     │     │
       ├─────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
       │ glPointSize │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │
       └─────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘