_glPointSize: specify the diameter of rasterized points
SUB _glPointSize (BYVAL size AS SINGLE) 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 Template:Code 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.
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