My Pive, more on Raspberry Pi + Vive.

I recorded another video, to extend my teaser sort of thing • My Raspberry Pive (Pi ...
All source code is available: Spreadgine:
github.com/cnl...
LibSurvive: github.com/cnl... commit 7a16dc316c23d55453174c56fbff89f043db3552
You will need to tweak your system settings to output on the pi. Please see the "docs" folder in spreadgine. You can also get a copy of the Raspi 8GB SD Card image, follow directions over at the spreadgine docs folder.

[@thebricktop]

While new raspberry pi 4 came out, could You revisit this project? It has 4 gb and powerfull video processor capable of rendering and outputting two 4k displays (has two usb 3.0 also).

[@bluetrepidation]

Your production value brings me back to your channel again and again. No fuss just ultra interesting projects. Keep it up. ESP8266 forever!

[@geoffandtheexpendables6631]

this is so cooooooooooooooool!!!!! The graphics remind me of the VR Arcades that used to be around in the 90s but much smoother

[@vkoskiv]

Could it be that your HDMI cable is so long that the raspi is struggling to push the signal at lower voltages?

[@brainndamage]

Mac33 that was my thought as well. The RPi3 has a HDMI Drive setting in config.txt, if the 3+ still has it, that's worth a shot. Correction: CONFIG_HDMI_BOOST is the right one.

[@CNLohr]

I will give that a shot more, but I think it has to do much more with the clock rate issues.

[@vkoskiv]

The stuff you're doing is so crazy awesome, that these handheld videos are perfectly adequate and really enjoyable to watch. Just explain away! Don't worry about production quality. It's the content that matters!

[@CNLohr]

Thanks, I will try to do that. A lot of times, the anxiety over production stops me from doing the thing I wanted to do.

[@vkoskiv]

CNLohr Every time you pick up that camera and show the stuff you’re working on, you are inspiring people. I got back into electronics and joined a local hacklab primarily thanks to you!

[@stanislavnikolov7423]

I've had similar visual glitches on lower voltages - try putting config_hdmi_boost=11 in /boot/config.txt and then reboot.

[@CNLohr]

Will do - Though, I found out when it happens, it looks like the rpi goes into some sort of low-voltage mode with a slower clock. I think the slower clock is what may be messing it up.

[@brainndamage]

CNLohr ah, okay. On raspbian here's an init script (raspi-config) that sets the governor on boot time (from the on-boot default of performance to powersave) to enable downclocking on low load. If you disable it via systemctl disable, the cpu will stay at the max clock constantly. I found that out when I was custom building raspbian images and didn't have raspi-config installed. Read the "Gotcha" part in the answer here: raspberrypi.stackexchange.com/a/9048

[@CNLohr]

THANK YOU I WILL TRY THIS!!!

[@trakeface1979]

Dude!!! PORTABLE PIVE

[@MasiTechno]

You are at a another level

[@AwesomeGames56]

Thanks for sharing! Very interesting stuff!

[@hynekchovan3951]

The video glitch on the vive might be because the pi cannot suply anough current to it, so you have to up the voltage to give the vive anough power

[@Chriva]

Quake 1 or 3 Arena would be rrrreally cool to play in 3D on that thing. Q1 might be possible?

[@CNLohr]

Probably but would require some work.

[@close_your_eyes8185]

@@CNLohr you could run quake in the wireframe mode, although I forget how to enable it.

[@Lordzoabar]

Have you looked at revisiting this project now that the Pi4 is out? I would love to see what could be accomplished with the upgraded system

[@CNLohr]

I have not. I do VR for my profession now, so no time to mess around for fun.

[@shinevisionsv]

Again, Amazing work!

[@BioToa7]

Have you thought of adapting some of the resources from Google VR? I couldn’t find it at the moment but uses a program that outputs 2D video instead of 3D video to save on computing resources . I know that isn’t what it actually is but that is what I can remember about it

[@HarhaMedia]

Very impressive work dude! Nice!

[@cixcell7735]

Awesome man. You got a subscribe out of me!

[@ottoedgarlawn3463]

Can you try beat saber superhot doom 3 bfg duck season on low settings

[@CNLohr]

I have no idea what that is...

[@duckyblender]

Will you revisit this with the raspberry pi 5? This has great potential to create a ultra low cost VR headset! If the pi 3 could do it, imagine the possibilities with the pi 5!

[@k1ngjulien_]

I'm not sure I understand the WebViewer correcly... So you're sending all the Instructions to draw the Scene and let the viewing Browser render it itself instead of rendering an Image and encoding it?

[@CNLohr]

Yep! OpenGL, OpenGL:ES and WebGL are all close enough that you can use the same instructions and get the same image.

[@k1ngjulien_]

CNLohr Nice👍

[@NethTech]

Is the image feed on the browser data uri with base64? I just had a job that required high res bitmap images pushed over UDP via base64 encode. Was a major PITA. Good job

[@radekbiskupski5380]

Hello, amazing. Will this code work also with Raspi 2B and with other VR headset like Samsung Odyssey? I would use this to spread signal from gstreamer in ez-wifibroadcast for FPV on VR. Cheers!

[@stone7767]

It's been a long time since your last video.

[@CNLohr]

I know.... SO BUSY.

[@HectorCenteno]

This is awesome! It would also be interesting to see how this runs on an Nvidia Jetson Nano.

[@roidroid7865]

2:00 100KB still doesn't seem so small for double 1080x1920 frames of simple graphics on pure-black. It's like a compressed JPG.

[@CNLohr]

It need not be black... Much more is possible!

[@alexthelion335]

I think it would be cool to use a WMR headset and have a standalone headset

[@CNLohr]

Do it.

[@sznio]

Nice keyboard! Which model is it and when did you buy it? I have a similar model since 2004 and I'm looking to finally replace it but can't find a similar one really, this one looks like what I want.

[@CNLohr]

o.O Which keyboard? I think it's some generic $14 keyboard?

[@LucasHartmann]

Awesome project! I was kinda surprised you chose the orange pi for a multimedia project on the first place, they ain't good for that. I have a couple driving my CNC machines, both headless, and working great.

[@CNLohr]

Yeah, I am glad to have made the jump. But until the 3B+ it was impossible to do on an RPI.

[@LucasHartmann]

CNLohr BTW... VirtualBoy emulation?

[@Greendayle]

So, raspberry pie, monado runtime + alvr client (alxr) == wireless Index, Vive, Vive Pro using wifi.

[@CNLohr]

If you build it!

[@michaelzweers1807]

I am interested to what you could do on an IMX8(quad max). As it has etnaviv support and allot op CPU power(for an embedded device). You could use the double M4 for some realtime stuff.

[@CNLohr]

It's cool for others to try to go for the gold so-to-speak, but I am still really focused on trying to push the limits of what's possible with an rpi.

[@lights-fo8et]

Are there any WebVR implementations that don’t depend on SteamVR? That would be cool to just use a web-based VR game on a Pi.

[@CNLohr]

I don't think so ATM, but it would be pretty easy to do it with libsurvive!

[@larzukpandemonium3428]

Hi! Great work, and great channel, i never skip an update. It would be awesome if you could present the actual setup (light houses, gogles, controller, cables, power supply, and computer boards) you use, like: "what do i need to replicate this setup" (if it fits your plans, of course :D ) Maybe i didn't saw something, but i'm hardly keeping track of everything. Would you say it's actually a developpement-friendly project? Thanks, good luck, and again, great job!

[@CNLohr]

I can't at the moment, but I will probably do something like what I did with my Orange Pi. And then I will post a lot more about it.

[@larzukpandemonium3428]

CNLohr that's great, thanks !

[@hollensted]

Those wires are too skinny. I soldered 0.5" wires too get it working on 5.1 volts.

[@k1ngjulien_]

The cables you are using to power the RaspberryPi look very thin for those kind of power requirements :D

[@CNLohr]

yeahhhh I know. Hopefully it'll be better when the power supply is on the board.

[@radekbiskupski5380]

Which module/function can I use to simply stream only video from raspivid to htc vive on both displays?

[@CNLohr]

I don't understand the question

[@radekbiskupski5380]

@@CNLohr Yeah, that was not clear question. I've got problems with activating both Vive displays. But fortunately I found your config.txt file with timings etc and now everything work as needed. Thanks for your wonderful job.

[@SinanAkkoyun]

The coolest thing you did is the VNC server game, can you do a better game with VNC and the ESP32?

[@CNLohr]

I could but that'd be a lot of work.

[@MichaelMantion]

miss ur vids

[@DerSolinski]

Try to adapt your non-euclidean thingy to it, that would be one trip down the rabbit hole xD

[@CNLohr]

Not on the pi. No waaayyy would it be able to handle much ray tracing at all

[@DerSolinski]

I don't know how much work it would be to compile it for the pi, but I think it would be fun to see anyways xD

[@cali-co6428]

New video when?

[@thealternativej7994]

It would be cool if this also worked with the Rift, but I'm guessing it won't.

[@allen88tech]

A pi probably doesn’t have the usb bandwidth to do constellation tracking.

[@CNLohr]

Correct. This is one of the three fundamental problem with rift tracking and why lighthouse tracking is the definitive winner. (1) Bandwidth (2) Processing (3) being able to tell what's what in larger spaces or when tracking more objects.

[@DanielShealey]

But what about the minimum specs for vr? Don't you need like a gtx 970 minimum to run VR? #sarcasm

[@ms2649]

Why not water cool it

[@nbshftr]

dude what happened to "No! Euclidean"

[@bluesheep2452]

The name is funny to me because "pive" literally means "Beers" in my language (Bosnian) you could make a software or something for it and call it "Beers".

[@CNLohr]

I didn't know that. That's pretty funny.

[@bluesheep2452]

@@CNLohr Thanks! :)

[@djmips]

If you made your own link box you would not need to overvolt the Pi.

[@SinanAkkoyun]

Well, I think the current draw drops the voltage in total, so...

[@fahdv2597]

Is he married?

[@ChrisD__]

If your significant other doesn't support your hobbies, I don't even know why you're together.

[@dereksgc]

Pive, call it Pive, oh god why don't you call it Pive