My suggestions are mostly about maintaining quality while limiting bandwidth requirements to the headset, wouldn’t a lightfield require a fair bit of bandwidth to keep updated?
(Another idea is to annotate moving objects with predicated trajectories)
Less than you might think, considering the small range perspectives involved. Rendering to a stack of layers or a grid of offsets technically counts. It is more information than simply transmitting a flat frame… but update rate isn’t do-or-die, if the headset itself handles perspective.
Optimizing for bandwidth would probably look more like depth-peeled layers with very approximate depth values. Maybe rendering objects independently to lumpy reliefs. The illusion only has to work for a fraction of a second, from about where you’re standing.
Alpha-blending is easy because, again, it is a set of sorted layers. The only real geometry is some crinkly concentric spheres. I wouldn’t necessarily hand-wave Silent Hill 2 levels of subtlety, with one static moment, but even uniform fog would be sliced-up along with everything else.
Reflections are handled as cutouts with stuff behind them. That part is a natural consequence of their focus on lightfield photography, but it could be faked somewhat directly by rendering. Or you could transmit environment maps and blend between those. Just remember the idea is to be orders of magnitude more efficient than rendering everything normally.
My suggestions are mostly about maintaining quality while limiting bandwidth requirements to the headset, wouldn’t a lightfield require a fair bit of bandwidth to keep updated?
(Another idea is to annotate moving objects with predicated trajectories)
Less than you might think, considering the small range perspectives involved. Rendering to a stack of layers or a grid of offsets technically counts. It is more information than simply transmitting a flat frame… but update rate isn’t do-or-die, if the headset itself handles perspective.
Optimizing for bandwidth would probably look more like depth-peeled layers with very approximate depth values. Maybe rendering objects independently to lumpy reliefs. The illusion only has to work for a fraction of a second, from about where you’re standing.
How does it handle stuff like fog effects, by the way? Can it be made to work (efficiently) with reflections?
The “deep view” link has video - and interactive online demos.
Alpha-blending is easy because, again, it is a set of sorted layers. The only real geometry is some crinkly concentric spheres. I wouldn’t necessarily hand-wave Silent Hill 2 levels of subtlety, with one static moment, but even uniform fog would be sliced-up along with everything else.
Reflections are handled as cutouts with stuff behind them. That part is a natural consequence of their focus on lightfield photography, but it could be faked somewhat directly by rendering. Or you could transmit environment maps and blend between those. Just remember the idea is to be orders of magnitude more efficient than rendering everything normally.
Admittedly you can kinda see the gaps if you go looking.