Official DX12 is out of experimental since 2022.2.0a17

> d3d12: Profiler is enabled, but stable power state is not. GPU timing errors are expected.

Every time i start the editor i see this message, and i dont know what to do with it. What is stable power, where do i enable it?

 

launch unity.exe with following argument: -force-d3d12-stablepowerstate

 

Thanks for the answer. Not seeing this command in the documentation, nor does the warning inform in any way how to solve it. Really think that something out of experimental should be more polished.

 

Great work bringing DX12 forward! I tried it out to get an early glimpse of potential performance. I'm seeing about a ten percent drop in fps performance across different scenes. This isn't a complaint -- I know it's hot off the press and further optimization is planned. I'm looking forward to trying it again in the future.

 

A couple of people mentioned that Nsight Graphics works fine when the D3D12 Graphics API is enabled. I'm having the exact opposite problem, each time I try to start a standalone alone D3D12 build from Nsight Graphics, the build just crashes. To exlude any issues due to my code, I tried the HDRP sample scene and it still crashes.
Some help with this would be greatly appreciated.

 

We are seeing a 4-10x performance drop between 2022.2.2 and 2022.1.24 in URP. Also we are seeing two different types of crashes in the editor and in builds. In the editor, we see this:


And in the build we see this:

Code (CSharp):

1. Device removed reason (887a0006).
2. GfxDevice was not out of Local memory
3. Local memory usage:
4. Budget: 9750708224
5. CurrentUsage: 2200891392
6. AvailableForReservation: 67108864
7. CurrentReservation: 5009571840
8. GfxDevice was not out of Non-Local memory
9. Non-Local memory usage:
10. Budget: 16334927872
11. CurrentUsage: 238055424
12. AvailableForReservation: 0
13. CurrentReservation: 8301681664
14. Set -force-d3d12-debug for more information on device removal
15. Device removed reason (887a0006).
16. Crash!!!

Rolling back to 2022.1.24 fixes everything

What's the best way for us to submit useful information because we don't have much to go on?

Update: Player is set to auto-detect the API. We have been able to get more stability in the editor by forcing it to DX12, but that seems to increase crashes in the builds. (Also, sadly, I'm working on an older laptop with a GTX 1060 that can't update its drivers and I seem to be the only one on my team spared from these errors)

Update 2: I'm now being told the swap chair error is still happening after the rollback in the editor, but the build is still stable and the performance is better.

 

Performance parity?
Whenever I update Unity, I wait until the 3rd release of a major update to upgrade (X.X.3f1) , and I try out DX12 only to quickly disguard it and go back to dx11, but after hearing dx12 is now official I had high hopes this time.

But with the Standard pipeline performance is still terrible (plus there are rendering errors to boot)
DX11 ~110fps > DX12 ~50fps nvidia1650 & 2022.2.3
Is this parity only with HDRP or is it standard pipeline as well?
The only thing I want from dx12 is adaptive resolution scaling

 

It's also terrible in HDRP.

 

In my project, transparent materials starts glitching out when there are over 10k instances on camera. I'm using ECS1.0 though, but DX11 works fine.

HDRP 14.0.6 on Unity 2022.2.11

 

Same here. We switched our HDRP project from DX11 to DX12(officially released), and the FPS drops from 80 to 45.

 

Come on guys, it hasn't even been 10 years since they announced their plans to support DX12 early in the Unity 5 cycle, you can't yet expect the support to be good a mere 8 years later.

 

I'm trying to use NSight to profile our shaders, however when starting (in dx12) i get this message, and then our player just crashes. Is this a bug, or intended?


Stack trace has this:

This doesnt happen when i select GPU Trace Profiler, but when i want to use the Frame Debugger it simply crashes.

 

Thnx for your reply, ill try to do a bugreport with them.

Even if i supress the message Unity crashes for me, 2022.2.20. Also happens in an empty test project.

 

Is Dx12 supported for Unity 2022.3.X (LTS) for XR? specifically openXR for Windows running in SteamVR?

Edit: should it matter, I am on URP forward+, with unity ECS Graphics.

(For me it crashes a lot, but not always and not at the same spot. But it fixes a quality of life issue I was having with dx11. I am CPU bound so I would like to make this work. )

 

Our project still runs a lot slower on d3d12, compared to d3d11. We'd love to submit the project as a testcase as i think its a good example of a large Unity project.

 

I get 20 ms player loop on DX11 vs 30 ms on DX12. With a very basic scene of just terrain and some grass. It looks like everything is just more expensive on the GPU. GBuffer is going from 2ms to 3.5ms.

 

DX12 seems still to have a huge memory overhead for each buffer created as it seems like they are 64k aligned:
https://forum.unity.com/threads/huge-dx12-memory-overhead-compared-to-dx11.1480653
Any information about that?