Rendering issue with WPF 3D content on Intel Iris XE

[lukaslober]

• .NET Core Version: (e.g. 3.0 Preview1, or daily build number, use dotnet --info)
  .Net 6 and 4.8
• Windows version: (winver)
  Windows 11 Pro 10.0.22000
• Does the bug reproduce also in WPF for .NET Framework 4.8?: Yes/No
  Yes
• Is this bug related specifically to tooling in Visual Studio (e.g. XAML Designer, Code editing, etc...)? If yes, please file the issue via the instructions here.
  No
• Security issues and bugs should be reported privately, learn more via our responsible disclosure guidelines.
  No

Problem description:
I have rendering issues with WPF 3D content on my Intel Iris XE graphics card.
With the nvidia card there is no problem.
A detailed description of the problem can be found here:
https://community.intel.com/t5/Graphics/Graphics-failure-with-WPF-3D-content-and-Iris-XE/m-p/1415196#M109812
As Intel can not reproduce this issue maybe someone here knows how to solve this.

Actual behavior:
WPF 3D content is not rendered on Intel Iris XE graphics card.
Disabling HW Acceleration at the registry solves the problem.

Expected behavior:
Rendering like on the nvidia card.

Minimal repro:
Use any of WPF 3D content. All apps I tried had the same problem.
But to reproduce this with an open source project I tried this which had this problem also.
https://github.com/helix-toolkit/helix-toolkit/tree/develop/Source/Examples/WPF/SimpleDemo

[Symbai]

Disabling HW Acceleration at the registry solves the problem.

You can also disable it at launch for your application only. I doubt it's getting fixed here, any developer looking into this probably needs such a graphic card. And Intel is known for providing bad driver support.

[lukaslober]

Yes I know that but I dont want to disable hardware acceleration for my app. This shouldn't be necessary for default WPF stuff and will also decrease performance.
I think there is a problem and this should be fixed. Maybe it is the D3D9On12 Layer and if microsoft is the developer here there should be someone who has a similar setup for testing.

[ivancoredev]

I have the same problem using WPF 3D controls in newest HP Notebook with Intel Core i5 1235U (12. Generation) processor and Intel Iris Xe graphics https://www.hp.com/de-de/shop/product.aspx?id=6F242EA&opt=ABD&sel=NTB .

We use WPF (.NET Framework) 3D Chart controls from well-known companies like Infragistics and Telerik. The 3D charts work in many tested computers, even with old Intel integrated graphics like Intel HD Graphics 4000 or Intel UHD Graphics 620.

But in newest notebook with Intel Iris Xe Graphics the 3D controls don't work. They show few thin colored stripes on the empty 3D chart control for both Infragistics and Telerik controls (attachment). Even the standard Telerik Demo app for WPF doesn't work.

I have made the clean install of latest beta Intel drivers 31.0.101.3616 (02-09-2022) bit this doesn't help.

[lukaslober]

I ended up creating an issue at the D3D9On12 repo as Intel can also reproduce this problem
https://community.intel.com/t5/Graphics/3D-rendering-issue-on-12th-gen-Intel-Core-i3/m-p/1407118/highlight/true#M109118

[VassfjelletBigfoot]

Posted some workarounds here:

microsoft/D3D9On12#52

[vdwtanner]

Resolved with Intel's latest drivers. Link to a known driver that resolves this issue:

https://www.intel.com/content/www/us/en/download/726609/intel-arc-iris-xe-graphics-whql-windows.html