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about widescreen game tech

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[size="5"]i use three wide screen monitors for gaming , and i can see more of my surrounding have more rooms for my interface,

so i have a question : i do not modify the fov value and i know the range of frustum x y is constant value [-1.0, 1.0]

why i could see more things in the scene.

thanks !



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I'm not sure which game you are talking about, but the FOV is probably automatically calculated by the overall resolution of your monitor setup. Then when you view the scene with three monitors, the overall x-resolution is much higher, and effectively gives you a wider viewing angle of the scene.

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The magic thing isn't pov, but aspect ratio. Pov is usually given as vertical angle, so it won't change, just because the screen gets wider. Your other values look normalized and are probably post projection, so again, they won't change.

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