So after doing this update, the splashscreen no longer appears when I load up the RetroPie. It just loads directly into the emulationstation loading screen.

Any ideas?

@gvx64

Nice work! Do you think we should create a "Borked 3DS" thread on Retropie ?

OK so this worked:

I added the following to runcommand-onlaunch.sh

rm /opt/retropie/configs/ps2/Config/cache/vulkan_pipelines.bin && rm /opt/retropie/configs/ps2/Config/cache/vulkan_shaders.bin && rm /opt/retropie/configs/ps2/Config/cache/vulkan_shaders.idx

It did not appear to like them on separate lines. Now when a game launches, it deletes those three files, and if I'm loading a PS2 game with AetherSX2 it re-creates them once the game loads, but then deletes them before the next game.

So this way those files never get bloated and not hog down any other games.

Anyone have any suggestions on how I can get the Vulkan drivers back on the latest update of Retroarch?

@TPR I think that's this option:-

[Video_Hacks] DisableCopyToVRAM = False

you'll need to check the options they have documented on retroarch's wiki:-

https://docs.libretro.com/library/dolphin/

Although they're not named the same as regular dolphin so you might need to trial and error a bit

@sugarfree said in Using Vulkan with RetroPie:

@TPR

It's not merged yet, but I'm sure it will be when the time comes. See: https://github.com/RetroPie/RetroPie-Setup/pull/3785.

To answer your previous question: yes, the Vulkan driver provides noticeble better performance with the Flycast, Dolphin, and PPSSPP emulators. The extent of the improvement depends on the game.

OK thanks. Those are the emulators I've been using it on.

You could try enabling manual texture sampling but make sure to use opemGl or else it wont work. That's how i solved it for resident evil 4 and MKDD

@giandeejay said in is it possibile to install vulkan on retropie ?:

But where in the code ? What line?

! isPlatform "x11" && params+=(--disable-vulkan --disable-wayland)

hello, good morning, I have no personal interest, I had read about it improving graphic performance, but I don't feel urgently, when the version with debian 11 is ready, I'll try it with pleasure, thanks to both of you for your answers

@gandalth23 said in Wii emulation performance using Vulkan on Pi4:

I confirm the behavior for Mario Kart Double Dash.

In your other thread you seem to have found a solution for Mario Kart Double Dash. What exactly is the fix? Using that fork of dolphin or the Gecko codes you provided?

Best,
gandalth

The solution to get rid of the blue fog screen is to install the Ishiiruka version of dolphin....

Very exciting! Does this mean anything for retropie?

retroarch supports it as a graphics driver but it's used for simple blitting to the screen, so no perceivable advantage in 2d emulators. another side effect is that the usual GLSL shaders we use will not work with vulkan - you have to use SLANG ones.

3d cores and standalone emulators may have vulkan implementations, which would take advantage of the new speed/features. lr-parallel would be a fun experiment (though i expect not viable at all). duckstation, beetle-psx, flycast, ppsspp, and dolphin are potentially viable ones that i can think of.

another issue is, does the vulkan driver still need X? that's not ideal.

There's been recent work to include Vulkan support in Mesa for Pi. Here are some hopefully helpful links:

https://www.raspberrypi.org/blog/vulkan-update-merged-to-mesa/ https://blogs.igalia.com/apinheiro/2020/06/v3dv-quick-guide-to-build-and-run-some-demos/ https://www.raspberrypi.org/forums/viewtopic.php?t=277125

Most of the links go over similar steps for compiling, installing, and testing Vulkan and its demos. Some additional notes:

The older posts point to a developer's fork of Mesa. Now that Vulkan has been merged into Mesa, whereever you see a git clone you'll want to make sure that you're pointing to Mesa's repository (https://gitlab.freedesktop.org/mesa/mesa/) You'll be able to get Vulkan from the master branch of of the Mesa repository. It doesn't look like it's been tagged to a release yet, so there's likely more work to be done and your mileage may vary. You can actually have different versions of Mesa installed on your system simultaneously, as long as you put them in different directories. In order to ensure stability of my Pi systems, I do this, so I can test and play around while not worrying about everything else. Though Mesa is pretty self contained so it's not too hard to get things back to normal if you overwrite the original drivers. If you have compiled Mesa for installation in another directory, then you'll need to add the following line to your launch scripts or your bash profile in order to point programs to your special installation. You do that with the following line: export VK_ICD_FILENAMES=[YOUR INSTALLATION PATH]/share/vulkan/icd.d/broadcom_icd.armv7l.json I've found that Raspbian/Raspberry Pi OS (which is what RetroPie is built on) actually uses NVIDIA's Vendor Neutral Dispatch version of Mesa (which uses code from Mesa), and not Mesa's version of Mesa. I have no idea if that will be changing or not, but it at least indicates that there will be more work to do before we see Vulkan drivers as part of Raspbian/Raspberry Pi OS/RetroPie as a default.

I've been playing around with Vulkan and so far it's looking pretty good. I have high hopes that as programs begin to adopt Vulkan we'll be seeing some really awesome performance increases. I have not tried Dolphin though. The only thing I've found regarding Dolphin and Vulkan was someone testing it out on a Jetson Nano, which is a different hardware platform. He did compare Vulkan vs. OpenGL and found that Zelda: Wind Walker ran very well with Vulkan where it was choppy on OpenGL. The post is on Facebook (https://www.facebook.com/groups/retropieofficial/permalink/1387063751494192/).

I created a scriptmodule for my own purposes to automate building / installation of Mesa with Vulkan. I may create a separate post for that.

I hope this info helps out.

- George