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how to set big viewing area

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hi some one please help me .i have hundreds of cubs i am able to draw those cubes the problem is viewing area.
cubes having the values
x - 0(min ) to 435420(max)
y - 0(min ) to 1104600(max)
z - 0(min) to 1000(max)

with is these limits only all my cubs are presented i want to see all my cubs..some one please tell me how to set the cemera to see all the cubes?

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When initializing openGL, you can set glOrtho to any width and height, that's basically your camera. Set it to these values and you'll be able to see all of your cubes.

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