Rendering only a part of the screen in high detail

Posted by Bart van Heukelom on Game Development See other posts from Game Development or by Bart van Heukelom
Published on 2014-06-12T12:18:07Z Indexed on 2014/06/12 15:43 UTC
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Filed under:

opengl

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directx

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rendering

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virtual-reality

If graphics are rendered for a large viewing angle (e.g. a very large TV or a VR headset), the viewer can't actually focus on the entire image, just a part of it. (Actually, this is the case for regular sized screens as well.)

Combined with a way to track the viewer's eyes, you could theoretically exploit this and render the graphics away from the viewer's focus with progressively less details and resolution, gaining performance, without losing perceived quality.

Are there any techniques for this available or under development today?

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