Suggestion: Quad View rendering

[Haxorzz]

How simple would implementing quad view rendering be for vivecraft? (dynamic or not)

While minecraft isn't normally GPU limited, in VR some devices just don't have the pixel fill-rate to render it at a playable framerate, and this only get significantly worse with shaders.

Quadviews should improve this a lot by having a relatively simple foveated rendering setup with one high resolution area (or more with more views but I doubt this looks good and has too much overhead most likely) and a high resolution area overlayed on top

[fayer3]

what is Quad View rendering?

[fayer3]

foveated rendering would be a possibility, I think there was an extension for it.
probably has issues with shaders though, since they don't necessarily rend only fullscreen stuff.

[Haxorzz]

foveated rendering would be a possibility, I think there was an extension for it. probably has issues with shaders though, since they don't necessarily rend only fullscreen stuff.

The extensions are bad and slow, and as far as I know quad views would maintain shader support with almost no issue. It's just rendering the game twice but a smaller slice

[fayer3]

rendering the game even more times is bad, the cpu load is already so bad

[Haxorzz]

rendering the game even more times is bad, the cpu load is already so bad

I don't think you realize or know what quadviews are man... =

[fayer3]

literally my first message

[fayer3]

found that https://github.com/mbucchia/Quad-Views-Foveated/wiki/What-is-Quad-Views-rendering

There are some limitations to this technique:

• The workload on the CPU may increase as the result of drawing the same geometry twice for the region overlapping the inner and outer views.
• It is incompatible with several visual effects. Varjo recommends disabling the following effects when doing multi-projection: Automatic/dynamic exposure, Bloom, Vignette, Chromatic aberration, Film grain, Depth of Field, Lens distortion, Motion blur, Panini projection, Screen Space Ambient Occlusion, Screen Space reflection (see Varjo's recommendations).

don't think this is a solution for shaders

[fayer3]

rendering the game even more times is bad, the cpu load is already so bad

I don't think you realize or know what quadviews are man... =

also, how would you suggest rendering 2 views, without processing the world twice on the cpu