WPF 3D render problem in Workstation 15

[andrej76]

I wanted to submit a bug in Workstation 15, but was not able to do that in the Support page, so I am writing about it here.

When using accelerated 3D graphics in Workstation 15, the 3D objects rendered with WPF application are not correctly rendered. It looks like the DirectX back buffer is not cleared when a new frame is rendered so that the content of the previous frame is still visible.

For example, the following 3D scene can be rotated with the mouse:

In Workstation 15 after the scene is rotated with the mouse, the screen looks like the this:

The problem occurs in Windows 7 and Windows 10 (as guest OS).

This works well in Workstation 14.

I am attaching a simple sample to reproduce the problem (with full source code in a zip file and as compiled exe).

[yanw]

Hi, andrej76:

Thanks for your feedback about the issue. Using the app you provided, i can reproduce the render issue using WS15, and i have filled a internal bug to track the issue. Appreciated again for rasing the issue.

[Yokomo]

I'm having the same problem.

Running Windows 7 all updates,  64bit  in VM 15. Dot Net 4.7.2

WPF 3D window shown.  System is not showing the background, and not clearing the veiwport before redrawing.

[andrej76]

This is still not fixed in Workstation 15.1.

Is it possible to estimate when this will be fixed?

[IdarT]

I have the same problem in Fusion Pro 11.5 (now 11.5.3) running Windows 10.

I've been searching high and low for any tips/tricks/settings or others that have experienced the same, and it took a while to find this thread.

I realize that there's a separate forum for Fusion. However, since it affects multiple products, I'm guessing it's not product specific. It could just as easily be a problem with the SVGA 3D driver.