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OpenGL has no command to draw a single point. Otherwise, porting point functions is straightforward. The following table lists IRIS GL functions for drawing points and their equivalent OpenGL functions.
| IRIS GL function | OpenGL function | Meaning |
|---|---|---|
| pnt | Draws a single point. | |
| bgnpoint, endpoint | glBegin ( GL_POINTS ), glEnd | Interprets vertices as points. |
| pntsize | glPointSize | Sets point size in pixels. |
| pntsmooth | glEnable ( GL_POINT_SMOOTH ) | Turns on point antialiasing. (For more information on point antialiasing, see Porting Antialiasing Functions.) |
For information about related get functions, see glPointSize.
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