75/90Hz to 150/180Hz (Brainwarp) How?

If you look at Mvidia cascaded displays post that @VRGIMP27 posted about. Brainwarp works on a similar principle except instead of putting 2 panels directly on top of each other; we have 1 per eye.

Now it would be interesting if you vould combine the 2 ideas.

Here’s how I see the image:

No?

I really need it explained if this isn’t the case, because the above image fits in perfectly with the intent of Brainwarp; it’s running at a full 90/90 on the left depiction, and a ‘Brainwarped’ 45/45 on the right depiction = reduced performance costs but perceived 90FPS.

Both panels run at 75 to 90 fps. Just one is offset say by half the response time.

Sure, I get that description of how Brainwarp can be used to go to 180, what I’m saying is the image they’re using doesn’t depict that explanation - The frame timing is not offset, it has the timing of frames(T1, T2, T3…) synchronized(between the two panels,) the representation on the right is sticking to that time sequence, it’s just taking turns displaying an image.

(My perception, and I happy to be corrected if someone can show how I’m misreading the image but just saying they’re offset won’t do it, because that’s not depicted)

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No, you’re right that’s what it looks like the image is saying. It’s most likely a bit of miscommunication, otherwise I have no idea where the 150/180hz comes from. Hopefully we can get an official confirmation from Pimax to clarify.

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It’s not rocket science. 75 HZ each times 2 = 150 HZ, 90 Hz each times 2 = 180 HZ. One could argue that it really is only 75/90HZ but the proof is in the visual fidelity. So far no one that has tried it even questions that.

Yeah pic 1 should state that frame timing is 90 hz and pic 2 should say 180. It wasn’t the best way to explain brainwarp like this, that’s for sure :slight_smile:

What we still don’t know though:

  1. Does Brainwarp discard frames (like from L1 and R1, it only displays L1 ?)
  2. Or does brainwarp simply show all frames but at a half frame timing difference ?
  3. Or does brainwarp interpolate frames ?

Pimax hasn’t clarified this yet.

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Yes, so consolidate that with the image they use to explain it, keeping in mind that the Text/Numbers on their also tell you what’s going on. Tested spoke about frame drops and jumps, which at ‘180’ FPS should be impossible to dedect

Well actually the Tested review as well as others did complain about framerate performance and a slight jelly effect, possibly due to brainwarp or the fact that they demoed it off a laptop.

That’s still an unknown. While I value the Tested review It is not the Law. Their opinion is subject to change with future development. My opinion is that i don’t really care how it works as long as it does.

We’re not saying it doesn’t work, in the start of the thread we briefly discussed and agreed on the out of phase frames, giving the 180 impression. What we’re now talking about is the image they’ve used to sell the idea - it doesn’t depict what is being said;they’d need to add more info to the picture to do that, because as it stands, as explained in images above, it’s halving the FPS per eye/panel

Oh I agree, as long as it works. But without getting to try it the only link we have to the product is through Pimax marketing and reviewers word, I’m very much hoping for a good outcome with Octobers reviews.

It appears to me that it must be difficult to simplify the concept to make it easy to understand. The picture definitely does not do justice to what really happens I think.

That’s what we’re saying.

The first image i edited would explain two out of phase screens running at a full 90Hz : (on the right)

Yea that works pretty simply, if the image ran through all the frames then it’d certainly be a lot more clear than what’s on the kickstarter.

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Okay yeah i see what you mean. It should show that the right eye timing is +0.5 to the left.

Left 1.0 right 1.5 so to speak.

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I have done a small drawing with which it is possible to clarify (or complicate more :smirk:) to understand how the brainwarp works. the area of binocular overlap is quite wide (120º), would be a little more than half that total fov (220º) . from my point of view is quite adequate, taking into account that pimax 4k has a fov 110º …

I was wrong with the total fov of the 8k pimax which is 200º instead of 220º as the human view, that would still increase the scale of the area with 180fps!!

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It would be great if the pimax 8k had that amount of binocular overlap. @deletedpimaxrep1 what is the actual degrees of binocular overlap ?

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Yes, as per my images above that’s how I see that it should have been drawn, too - offset. We got the theory sorted early on, but then the depiction on the official page wouldn’t consolidate with the theory. I get what you’re saying about the FOV, too. I read earlier they named it ‘Brainwarp’ because your brain does some trickery to fill on the edges and you don’t notice/it all looks consistent.

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