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Show HN: Simula One – Portable Linux VR Computer

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Re: Show HN: Simula One – Portable Linux VR Computer

#271
This looks amazing, but I've always been put off VR by the bulkiness of the headset - I've got to wonder how it can be worn for long periods, and what that might do to my neck. Plus there's a risk of nausea and headaches, which would be pretty shitty if I dropped a couple of grand on a headset!

Anyway, how realistic is it for VR headsets to be miniaturised, so they more resemble a pair of glasses? Or does physics mean that will never be possible?

Re: Show HN: Simula One – Portable Linux VR Computer

#272
post #182

Earlier quoted context omitted.

That would be so, so cool. I don't see this happening for a while unless a CAD vendor works with us but definitely where I see this tech.

How about 3D modeling with something like Blender? BTW, the key to making stuff like that work well isn't just the UI affordances, but latency. Head tracking, room tracking, video passthrough for AR, all highly sensitive to latency. You can see the effect even in the GIFs on your landing page: in the AR mode the floating windows slightly lag the external view when the user moves their head. Latency is what makes many…

We do have a lot of considerations for latency. Early footage is well, early.

Head/room tracking is being worked on, but I'll keep people updated with results.

AR latency... we're basically just brute forcing it. >90 FPS cameras, dump the data uncompressed via PCIe Gen3 x4 onto the compute pack, display it. Still working on the hardware verification but it should be doable within a frame assuming there isn't a hidden bottleneck somewhere.

Re: Show HN: Simula One – Portable Linux VR Computer

#273
post #19

Earlier quoted context omitted.

The software side does; there's videos of George working on Simula in Simula. Trickier for the EE/ME side as it's all Windows.

RE weight: we're targeting 800g (balanced evenly between front headset/rear compute pack).[1] This shouldn't be more straining than a Valve Index. RE battery: our target is 3 hrs (for reference: the Quest has a 2-3 hour battery life). Here's the link David was referring to: https://youtu.be/FWLuwG91HnI . It shows me dog-fooding Simula's software on the HTC Vive. [1] This is still a preliminary number, which might cha…

What about heat?

If I'm wearing an entire computer on my head, I would have thought it would get pretty hot, especially if I do CPU intensive work?

Re: Show HN: Simula One – Portable Linux VR Computer

#274
post #153
post #56

I see a lot of comments on the pricing of this hardware. It's going to be more expensive (for the end user) to build a headset (and FOSS window manager) than a product like the quest. Meta has a suite of products bringing in capitol by selling user PII. Valve has a distribution platform to offset costs. If you want to see a product that is open end to end and is not part of an ecosystem selling your information, then…

This is all true, but it also doesn't mean the that the current high price was the only possible approach. I see decisions made in the design that don't look great from cost-benefit standpoint. For example, this is being marketed mainly as a productivity tool. Wireless is certainly important for gaming when you are moving around in your environment, but people using this are primarily going to be in a stationary posi…

I think the freedom of an untethered headset is a big selling feature, at least for people who have used both tethered and untethered VR headsets. Since the Simula has full color passthrough, it should be easy to get up and make a cup of coffee while still wearing the headset. This is a big deal, taking a headset off and putting it back on again is annoying and focus breaking. It adds inertia that isn't there when using a non-wearable device. Minimizing the number of times you have to do that in a day is a win.

Untethered also allows you to be much more active, you can change seats or switch to standing as easily as if you were just holding a phone or tablet. It'd be nice to stretch my legs while I catch up on email or check a dashboard or flop on the couch while I watch a video or read an article.

If the battery life isn't great, you only need to be plugged in while your sitting at your desk and can easily unplug the cable when you want to get up. Hopefully they made the port easy to find while wearing the headset.

Re: Show HN: Simula One – Portable Linux VR Computer

#275

This looks like a decent deal looking deeper into it. Things that weren't obvious on first pass: (1) The VR specs are much higher than consumer level. I suspect this is what makes it reasonable to read text on it. The comparison headset is this: https://varjo.com/products/aero/ (They named it, but didn't google it) (2) They said "VR Computer" but don't define the term. They mean that it's a full PC with a headset ins…

I would highly discourage including a keyboard or mouse. If you are already spending $2700 on a VR computer I suspect you already have a keyboard or mouse you prefer or want to invest in a setup of your choice. No point in creating eWaste to drive home the point that this is a computer. And to that point you say that they need to emphasize that it is a computer and not just another headset (to the point of saying inc…

A lot of PC manufacturers like Dell will show a mouse and keyboard in the product photos[0], but then leave an option at checkout to remove them from the purchase.

It'd probably be good to not just show it with a mouse and keyboard, but to show it in a home context, not in use, put away for the day. How does this device fit into your life?

[0] hell, IDK if they still do, I haven't bought from a major manufacturer in a long time.

Re: Show HN: Simula One – Portable Linux VR Computer

#276
post #268

Earlier quoted context omitted.

We pushed hard on our specs; I appreciate you noticing =] We actually compared the Simula One to the Framework Professional Edition in an earlier post, so the comparison is apt.[1] We have also created a $100 discount code ("DISCOUNT_HN") for this thread to help out somewhat on the price.[2] [1] https://news.ycombinator.com/item?id=29923197 [2] https://news.ycombinator.com/item?id=30441454

It feels strange to be used as a reference point, but we’ll take it! Like other folks on this thread, I’m interested in seeing what you do with Simula One. I agree that it is the sort of ambitious though likely niche product that is worth testing the wide open future of VR with.

I like the concept of the Framework, and we're similarly big on being open/repairable/etc.

Re: Show HN: Simula One – Portable Linux VR Computer

#277
I love the idea to be able to work in many places while keeping a good posture!

On the pictures, it looks like there is no pointing device. Is the pointing done by eye tracking? How do you click on things? How do you deal with "focus follow mouse"? For example I often look at one window while typing in another.

Re: Show HN: Simula One – Portable Linux VR Computer

#278

This looks amazing, but I've always been put off VR by the bulkiness of the headset - I've got to wonder how it can be worn for long periods, and what that might do to my neck. Plus there's a risk of nausea and headaches, which would be pretty shitty if I dropped a couple of grand on a headset! Anyway, how realistic is it for VR headsets to be miniaturised, so they more resemble a pair of glasses? Or does physics mea…

You can go a fair bit smaller, but the primary size driver is the optics. Pancake lenses, which combine refraction with reflection, allow the depth to be much smaller while having similar optical power. However they cause image artifacts and have really poor light transmission, so it takes a good amount of R&D to get them good enough. A traditional refractive system, especially for a high-fidelity device, is a better choice for now than optimizing for size. That can come later.

Re: Show HN: Simula One – Portable Linux VR Computer

#279
post #258

Earlier quoted context omitted.

> 2. We'll consider adding a keyboard/mouse as optional add-ons. We have thought about including a "keyboard apron" as an item add-on that is actually differentiated from other keyboards, and one that would be particularly useful for VR computing (with the added freedom of movement).[1] Would something like this interest you? Note that we'd use a more accessible keyboard than the 40% "Corne keyboard" one shown in the…

Many of the target users are probably perfect touch typists. But according to the product comparison the SimulaVR also has handtracking. I wonder if it'd be possible to track hands and keyboard accurately enough for those who are not perfect touch typists.

The Quest 2 can do it with two specific models of keyboards (Logitech K830 and more recently Apple Magic Keyboard), so it should't be outside of the realm possibility.

Re: Show HN: Simula One – Portable Linux VR Computer

#280

Earlier quoted context omitted.

RE weight: we're targeting 800g (balanced evenly between front headset/rear compute pack).[1] This shouldn't be more straining than a Valve Index. RE battery: our target is 3 hrs (for reference: the Quest has a 2-3 hour battery life). Here's the link David was referring to: https://youtu.be/FWLuwG91HnI . It shows me dog-fooding Simula's software on the HTC Vive. [1] This is still a preliminary number, which might cha…

What about heat? If I'm wearing an entire computer on my head, I would have thought it would get pretty hot, especially if I do CPU intensive work?

It gets toasty but we're including this in the thermal solution-- compute pack on the back of your head separate from the rest of the headset, airflow going away from your head, maybe even additional insulation if there's too much conductive heat transfer through the padding.
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