<div>Dear Sir/Madam,</div>
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<div>I created a isosurface using vtkMarchingContourFilter, and put opacity under 1.0.</div>
<div>The image looks abnormal in vtk 5.2.1.</div>
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<div>But if I use vtk 5.6.0, it gets normal.</div>
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<div>Do you know any differences related with this phenomenon<em> </em>between these two version ?</div>
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<div>Even though I used depth peeling or depth sorting in vtk 5.2.1, it didn't get better.</div>
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<div>I attached two images in vkt 5.2.1 and vtk 5.6.0.</div>