[pnelsonAG]

You can get the camera matrices with using GetCameraMatrixes method on the Ab3d.PowerToys Camera.

On the existing camera instance, you can use the following method:
bool GetCameraMatrixes(out Matrix3D viewMatrix, out Matrix3D projectionMatrix)

I'm sorry for being so dense about this, but I'm not explicitly instantiating a PowerToys camera - I'm using a Viewport3D camera . . .

Code:

<dxControls:DXViewportView Name="MainViewportView" PresentationType="DirectXImage" Margin="230,70,20,170" ClipToBounds="true">
            <Viewport3D Name="MainViewport" >
                <Viewport3D.Camera>
                    <OrthographicCamera />
                </Viewport3D.Camera>
            </Viewport3D>
        </dxControls:DXViewportView>

How do I relate or convert these in my code or should my XAML explicitly use PowerToys classes?