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Can someone explain can I bend a grid so it creates a sphere as a result?

I can manage to draw a grid using triangle_strip; now I need to draw a portion of a sphere using triangle_strip, with a size determined by angle (if angle is 90 degrees, it only creates 1/4 of a sphere). I also need to be able to change the size of both the hemisphere (to enable possiblity to draw only 1/4 of a hemisphere, also there's no need for using indices).

I am able to draw a sphere using polar coordinates, bit I can't do what is needed by my requirements using polar coordinates.

user1118321
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user2022905
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  • possible duplicate of [calculating a sphere in opengl](http://stackoverflow.com/questions/7946770/calculating-a-sphere-in-opengl) – genpfault Jan 29 '13 at 19:29
  • Not so much; dupe is for a full sphere; requester seems to want portions of a sphere, not the whole thing. – JoshDM Jan 29 '13 at 19:30

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