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Triangle pixel area

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Hi, I've a strange question. Suppose that I setup the projection matrix with this function:
glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);

and suppose that my viewport dimension is 1280x800. Is possible to create a triangle of area (in pixel) 2^n? For example, if I would a triangle of area 2^11 = 2048 pixel, how I must set the vertices? Or if I would a triangle of area 2^12, 2^13? Is possible? Thanks.

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