[vtkusers] left handed coordiante system and vtkAxesActor lighting issue

[Gerrick Bivins]

Hello,
I'm trying to allow the user to switch between left handed and right handed coordinate display in my application.
To do this, I'm simply applying a transform to the camera "ModelViewTransform" that negates the z axis.
That works fine. My issue is that I've done something similar to orient the vtkAxesActor similarly but the lighting is incorrect.
If I setup the axes as such:
vtkAxesActor axes = new vtkAxesActor();

              vtkTransform lefthanded = new vtkTransform();
              lefthanded.Identity();
              vtkMatrix4x4 matrix = lefthanded.GetMatrix();
              matrix.SetElement(0, 0, -1);
              matrix.SetElement(1, 1, 1);
              axes.SetUserTransform(lefthanded);
              axes.SetShaftTypeToCylinder();
              axes.SetXAxisLabelText("x");
              axes.SetYAxisLabelText("y");
              axes.SetZAxisLabelText("z");
              axes.SetCylinderRadius(.05);
              axes.SetTotalLength(1.5, 1.5, 1.5);

each part of the axis is rendered "black".
I can partially work around this by setting the  shaft to render as a line:

              axes.SetShaftTypeToLine();
but the tips are still black.

Is there some setting I'm missing to get the lighting correct here?
Gerrick


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