Using Brainwarp to achieve native 4k resolution?

Pimax plans on making the Pimax 8k x. A special version of the Pimax 8k designed to be able to run at a native 4k resolution. The normal 8k is limited in resolution even though it uses the same screens due to the lack of a second bridge chip in the headset. Instead, it uses a hardware scaler in the headset to upscale 1440p to 4k which the one bridge chip can handle. As we know, Pimax has spoken of and advertised a special technique used to “boost” refresh rates called Brainwarp. Instead of running both screens at 1440p 80hz, it takes one image and switches it back and forth between screens. If you do this in a certain way you can give the illusion of a higher refresh rate. But something I haven’t heard people bringing up is that because only one screen is on at any given time, shouldn’t it be feasible for the one bridge chip in the headset to output a native 4k resolution? If this is true then it could make Brainwarp a much more important feature than just “boosting” refresh rates for the regular Pimax 8k. What are your thoughts on this? Is this indeed feasible or is there something else stopping this from working, such as the hardware scaler in the headset? (This is all hypothetical because we don’t know exactly how Brainwarp works as far as I know.)

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I assume there’s something preventing it, otherwise I would have thought Pimax would have mentioned it. It’s probably due to the scaler chip.

It’s a great idea, though. I would love to see this feature added to the final headset.

Well I mean, the hardware scaler could probably be bypassed pretty easily. Either with software or modding of the headset. But I really think Pimax should look into this because if it works, it would really take the headset to the next level! :slight_smile:

It is a good question.

I think If brainwarp was a perfect solution then there would not be a need for an 8K-X so I would assume there are some other challenges.

Maybe it is not a bandwidth bottleneck issue but the size of a full frame being sent that the chip can not handle at 80Hz without overheating or something and if you wanted the full frame then the Hz would drop to 40Hz which nobody would want.

I understand that at half res + brainwarp it can do 80/160 then at full res it should be able to do 4K Brainwarp 40/80 so it has to be something else that limits it.

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