Operating system: Slicer version: Expected behavior: Actual behavior:

Textured models (such as slices) are forced to be rendered as opaque if they are shown with opacity = 1.0. There was a slight mistake in the forcing logic that resulted in forced opaque rendering “stuck” after it was once rendered as opaque (this caused the behavior that you had to set opacity befor…

Hi, i dont know if it’s possible via the interface You can paste this code in the python console to set a specific opacity (Red can be changed to Green or Yellow) opacity = 0.7 Red = getNode("Red Volume Slice") Red.GetDisplayNode().SetOpacity(opacity) This following code is supposed to work too a…

[image] Amine: opacity = 0.7 Red = getNode(“Red Volume Slice”) Red.GetDisplayNode().SetOpacity(opacity) I tried out your suggestion. It partially works. I can see Fiducials behind a semi-transparent slice. However, a surface model and a trajectory path that I have in my scene do not show thro…

[image] Amine: opacity = 0.7 Red = getNode(“Red Volume Slice”) Red.GetDisplayNode().SetOpacity(opacity) It’s a curious behavior, if you use that code Before enabling the slice visibility in 3d it works fine, try it with a fresh scene (setting it to 1 then again to a lower value seems to cause…

[image] Amine: opacity = 0.7 Red = getNode(“Red Volume Slice”) Red.GetDisplayNode().SetOpacity(opacity) I still have the same issue. I have a model in my scene created from GreyscaleModelMaker. It does not show through the partially transparent slice.

Red = getNode("Red Volume Slice") Red.HideFromEditorsOff() Using this on the slice nodes works (allows modification from models module) but makes slicer crash as soon as slices are scrolled even in the new nightly

Amine’s observation that the opacity has to be set to a value like 0.7 in advance does work with models as well. I had created the model with GreyscaleModelMaker which automatically displayed the model in 3D View - before I had modified the opacity. Once I ensured that the first thing I did was to s…

In latest preview release the order of making the slice transparent and showing it in 3D view should not matter anymore. Models module should not be used to adjust slice properties. Slice view transparency would be added to the view controller, but for now we will not add GUI as this is not ready f…

Hi Amine I’ve never used the Python console before and can’t get the CT scan coronal plane (in the red slice) to be transparent. When I paste your code (line Red = getNode(“Red Volume Slice”)) into the console i get: [Screenshot 2022-03-31 213859] “Traceback (most recent call last): File “”, li…

Looking up nodes by name is not robust (node names may change). Instead, you can use node IDs or get the list of slice nodes from the layout manager - see examples here .

Can the image slices be made semi-transparent in 3D view?

Support

pieper (Steve Pieper (Isomics, Inc.)) October 9, 2019, 12:21am 5

You might also try depth peeling. Some discussion here.

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Can the image slices be made semi-transparent in 3D view?

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