Bug? Segmentation opacity not updated in panel

I opened several Segmentations (by loading previously saved STL files.

In the Segmentations module, with one Segmentation active I set the Overall opacity from 1.00 to 0.50. Its rendering in the 3D window was correspondingly adjusted, but the other Segmentations appeared visually unchanged.


When I then choose a different Segmentation as active, its Overall opacity is erroneously still shown as 0.50, even though what’s actually rendered is the original default of 1.00. This is obvious if a further adjustment is made in the Display panel to increase the Overall opacity to 0.60, resulting in an obvious decrease in opacity in the 3D view (i.e. from 1.00 down to 0.60).

Version 4.13.0-2022-01-19


Good catch. I fixed this in BUG: Fix update of overall opacity slider in Segmentations module by cpinter · Pull Request #6289 · Slicer/Slicer · GitHub

Once approved and integrated it will be fixed in the next preview release.

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