Doesn't this give you an approximation of a circle?

If you want a true circle, you could try to create a square with a
texture on top, where the texture is an image of a circle.


On Sep 2, 3:41 am, Keean Schupke <keean.schu...@googlemail.com> wrote:
> Hi,
>
> Use a TRIANGLE_FAN and compute the coordinates to put in your array
> buffer or VBO using the formula:
>
> x = cos r
> y = sin r
>
> where r goes from 0 to 2*PI in whatever step size you like. This will
> give you an anti-clockwise circle.
>
> Regards,
> Keean.
>
> On Sep 2, 8:16 am, "Frank von Daak" <f.vond...@kpage.de> wrote:
>
>
>
> > Hi!
>
> > I'm new to openGL and I have done some first tests with drawing a 
> > triangle...
> > Now I would like to draw a circle, which is filled with a texture, but I 
> > have
> > no idea, how to do so.
> > Can someone of you give me a hint?
>
> > Thank you very much!
> > Frank
>
> > --
> > Name:   Frank von Daak
> > eMail:  f.vond...@kpage.de
> > "Enjoy yourself - it's later than you think!"- Hide quoted text -
>
> - Show quoted text -
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