SharpDX - Viewport3DX inside WPF ViewBox crash

Hello,

I have an issue putting the Viewport3DX of HelixToolkit.Wpf.SharpDX 2.13.1 inside a System.Windows.Controls.ViewBox. The ViewPort3DX is flickering and showing the 3D model multiple times. After some seconds the view port crashes followed by this exception:

This is the content of my main window, the rest of my project is a default .Net Framework 4.7.1 WPF application:

<Grid>
  <Viewbox>
    <hx:Viewport3DX>
      <hx:Viewport3DX.EffectsManager>
        <hx:DefaultEffectsManager />
      </hx:Viewport3DX.EffectsManager>
      <hx:Viewport3DX.Camera>
        <hx:PerspectiveCamera />
      </hx:Viewport3DX.Camera>
      <hx:AmbientLight3D />
    </hx:Viewport3DX>
  </Viewbox>
</Grid>

Regards

[Borck]

Thanks for your reply. I uploaded by minimal example. Sometimes my machine is stucking for some seconds. I have a Ryzen 3700X and a RTX 2070.

https://github.com/Borck/HelixWPFTest.git

Hope this helps.

[ms-somanna]

Viewport3DX in viewbox does not know the size, so it keeps growing the resolution until it crashes. Specify the width and height on Viewprot3DX should fix the issue.

I’m getting a blank black screen even after setting the height and width of Viewport3DX