[vtkusers] Image Shifts between Parallel Projection mode and Perspective mode

[Doug Hoppes]

Hi all,

                Got a question.  I'm using the function, SetParallelProjection(true/false) to set the display between projection mode and perspective mode.  I'm noticing that there is a shift in the image.  I was hoping that the image would stay the same.  I thought that it was in our code but was able to reproduce this effect with a vtk example code.

                Any idea what's going on?  The closer that I'm zoomed in on my objects, the more the shift happens.

Doug

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