In fact, you cannot directly draw a circle. Alternatives:
- Display of a quad with a circle texture (for example, this link )
- Displays a circle, actually a circle of connected triangles. You must process the geometric shape to get closer to the circle. For a continuous circle it is not so difficult. I suppose the outline of a hollow circle / circle is a bit more involved. You could also draw a circle with lines, if that is what you want.
Good luck.
Torious
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