Transparent polygon in 3D plane widget should turn off
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
When using the 3D plane widget for clipping or cutting, the transparent polygon representing the plane causes z-buffer fighting with the geometry it clipped (see the attached image).
The problem is that the polygon and the clipping/cutting plane are coincident (of course) so the z-buffer issue is not unexpected.
The appropriate solution, implemented by ParaView 2, is to turn off the rendering of the transparent polygon when the user hits accept or reset. This way, the polygon won't be drawn when it's coincident with the geometry (and thus has little value).