For me personally, I would prefer the eye tracking module, assuming it is compatible with the prescription lens frames. If it isn’t, I might take a closer look at what the wireless option is. I already have the FOVE 0, so I should have the opportunity to play around with eye tracking either way, and I’m well aware that actual foveated rendering with dynamic placement based on eye tracking is still a ways off. It’s not that it’s terribly complicated; you’d just do double or more the number of render targets (low and high resolution regions), add occlusions to the low resolution to reduce overdraw where it overlaps the high resolution buffer, merge the two in the lens warping shader… but it’s a game engine level change. It would be injectable like some do with stereoscopic rendering in the first place, but it’s still going to take a while and will have spotty support.
Wireless is the option I think has the widest applicability because it doesn’t require application support, but it’s a moderate convenience. The cost, even with a discount, is likely to make most people back off; and a few others just won’t accept the quality compromises, even if they’re not so noticeable. I’m fairly impressed by what TPcast accomplishes, but unhappy about how; things like no support for the microphone, and the ethernet connected router. As I sit at the top tier with the 8K X, it’s likely the adapter wouldn’t even work with that model.
As for the inside out module, I personally don’t have the space to need more than two lighthouses, and it raises another question of how that module works with the controllers. It would be convenient for people who can’t mount the lighthouse base stations conveniently or bring the headset to different places for demonstrations, primarily. I’ve already sacrificed weight for the full resolution support.
About the “super” module, mobile VR can’t compete on sheer power budget; PC VR backpacks barely do. Given the Pimax 8K is a high end headset, I’m not sure of the utility, though I do think aiming to support more platforms is a good idea. I have one and think Daydream aimed too low with its rotational only tracking. Personally I think the way forward is a platform independent API such as OSVR in smaller devices; I think my cellphone in particular already has DisplayPort over USB type C.
In summary, for general utility I think the wireless module wins out, but only barely. I personally want the eye tracking module more. Offering a choice (say, a coupon applicable for any one of the options) would naturally be best for us backers, as the reasons differ; someone may need the tracking module due to an irregular playspace, someone else may be super keen on running mobile VR titles but not with screen door effect.
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