godot 4.0 can't/won't run on intel gpu

Haxeil

i wanted to try godot 4.0 pre alpha but there seem to be a problem with the Vulkan driver

i use arch linux/KDE, i don't know if it is going to work if i switched to windows, or i will have to upgrade my GPU.

Megalomaniak

As the MESA_INTEL driver tells you, Ivy bridge does not fully support Vulkan. Either wait for Godot 4.1 or use Godot 3.x with the GLES backend/renderers.

You could also make a issue report with the MESA project: https://docs.mesa3d.org/bugs.html

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fire7side

It's amazing Intel is that backwards. They've never been worth anything when it comes to graphics.

cybereality

Yeah, I just got this new mini pc with Intel integrated. Vulkan is supported (haven't tried Godot 4.0 yet) but the Vulkan performance is weak. Like 50% worse than OpenGL, even though Vulkan should be much faster (as it is on AMD and Nvidia).

You can see this list, I believe your CPU has HD Graphics 4000, which are not listed as Vulkan supported. https://www.intel.com/content/www/us/en/support/articles/000005524/graphics.html

Calinou

Ivy Bridge's Vulkan support is too incomplete to run Godot 4.0. You'll have to stick to Godot 3.x or wait until an OpenGL renderer is implemented in a future 4.x release (not 4.0).

Leakbang

Oh wow I never knew this. I can't recall a Vulkan powered game that could be run on an integrated GPU anyway, but still my take back is that this is a big missing feature in Intel's CPUs.

cybereality

I'm also having problems on Intel and Godot 4.0. I believe my CPU should be supported (Intel Celeron Processor J4125) and I can run Vulkan games fine.

Megalomaniak

What does running vulkaninfo tell you about the version of vulkan? @cybereality you too. This command should work on both windows or and linux if a vulkan driver has been installed correctly.

cybereality

vulkaninfo 
WARNING: lavapipe is not a conformant vulkan implementation, testing use only.
==========
VULKANINFO
==========

Vulkan Instance Version: 1.2.189

cybereality@gk55:~/SDK/Godot$ ./Godot_v4.0-dev.20211015_linux.64 
Godot Engine v4.0.dev.20211015.official.f113dc986 - https://godotengine.org
Vulkan API 1.2.189 - Using Vulkan Device #0: Intel - Intel(R) UHD Graphics 600 (GLK 2)
 
Editing project: /home/cybereality/Godot4Test (::home::cybereality::Godot4Test)
Godot Engine v4.0.dev.20211015.official.f113dc986 - https://godotengine.org
Vulkan API 1.2.189 - Using Vulkan Device #0: Intel - Intel(R) UHD Graphics 600 (GLK 2)
cybereality@gk55:~/SDK/Godot$  
MESA-INTEL: error: ../src/intel/vulkan/anv_device.c:3713: GPU hung on one of our command buffers (VK_ERROR_DEVICE_LOST)
ERROR: Condition "err" is true. Returning: ERR_CANT_CREATE
   at: swap_buffers (drivers/vulkan/vulkan_context.cpp:1861)
ERROR: Condition "err" is true. Returning: ERR_CANT_CREATE
   at: swap_buffers (drivers/vulkan/vulkan_context.cpp:1861)
ERROR: Condition "err" is true. Returning: ERR_CANT_CREATE

Megalomaniak

1.2.189 doesn't seem outdated, but the warning is perhaps a bit more concerning. Guess all intel vulkan drivers on linux might still be alpha/beta/thereabouts?

cybereality

Yes, this is using the standard Mesa drivers (well updated a bit from what comes with Ubuntu, but nothing crazy). I don't think any Vulkan drivers on Linux are finished. Even on my main computer (AMD with RADV drivers) it still gives the same warning.

cybereality

So I looked into it, lavapipe is a software rasterization driver, which would make sense why it didn't work. But I deleted it, and verified with vulkaninfo that I was using the Intel hardware driver and it still didn't work. Also, my games are running very slow compared to other people I've seen online, so I'm thinking the Intel drivers on Linux are just bunk. I'm installing Windows 11 now to test it, because I really want to get this working (bought the PC a week ago specifically for this).

Megalomaniak

After a quick google search, Lavapipe is a software renderer for Vulkan. What about HW acceleration? A driver for that to test out?

edit: ah your latest comment already noted that.

cybereality

Did more testing on Windows 11. Well games are still slow, maybe the chip is just not great. I'm getting slightly better performance than Linux, but nothing crazy. Godot 4.0 does at least open now, but the performance is very bad. Not usable currently, but it doesn't crash so that's a start. Godot 3.3 does run a little better, so that's good. Still need to mess with it more.

Calinou

The Intel UHD Graphics 600 is pretty slow. It's the lowest tier of Intel IGPs on 2017-2019 Celeron and Pentium CPUs. Even the widespread Intel UHD Graphics 620 is noticeably faster (not to be confused with the older Intel HD Graphics 620).

This kind of low-end IGP is only really suitable for playing oldschool games – and even then, you may run into trouble at higher resolutions.

Still, to improve performance in the Vulkan renderer in simple scenes, consider switching the backend to Vulkan Mobile in the Project Settings. This will add various limitations on rendering (only 8 OmniLights/SpotLights/Decals/ReflectionProbes per mesh), but it will reduce the renderer's base cost. In more complex scenes, the Vulkan Clustered backend is faster.

cybereality

Yes, I realize that now. The chip I have is the Celeron J4125, which is only 2 years old (but very low end). It's this computer called the Beelink GK55, which I got for $200. I got it just to see how low I could push the graphics in Godot and still have a supported game. https://www.amazon.com/dp/B08K919Y91

The mobile render seem a little better but not great. It also doesn't help that I'm running it on a 4K monitor (yes, I'm crazy). If I resize the Godot 4.0 window to 1080p, then at least it doesn't crash and it sort of works. It's super slow and not usable seriously, but it's enough to do my tests. And the chip does support Vulkan. I can run a spinning cube at 1024x600 and get around 250 fps. Not great, but it's something to work with. There are also many errors in the console, so it may be that Intel drivers are not good quality since they claim full Vulkan 1.2 support.

In terms of AAA games, I can play older 3D games from like 10 - 15 years ago at 720p all low settings and get around 60 fps. It looks pretty bad, but the games are playable. This is just to see if I can get my game to run on the crappiest computer. My real dev machine has a 16-core CPU and 64GB of RAM.

Megalomaniak

Might want to experiment with implementing dynamic resolution to your game perhaps? Using a viewport and a viewport container should make this fairly easy.

Calinou

Might want to experiment with implementing dynamic resolution to your game perhaps? Using a viewport and a viewport container should make this fairly easy.

Godot 4.0 has a 3D resolution scale factor project setting available, but it's not suited for a dynamic resolution implementation yet. Changing it at run-time will cause the buffer to be reallocated, which is slow.