# Fog in 3D rendering

**URL:** <https://discourse.slicer.org/t/fog-in-3d-rendering/27593>\
**Category:** Support\
**Created:** [February 2, 2023, 12:47am UTC](https://discourse.slicer.org/t/fog-in-3d-rendering/27593 "2023-02-02T00:47:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Taote](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/taote/32/18270_2.png) [@Taote](https://discourse.slicer.org/u/Taote)\
**Post date:** [February 2, 2023, 12:47am UTC](https://discourse.slicer.org/t/fog-in-3d-rendering/27593/1 "2023-02-02T00:47:17Z")

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In ancient versions of 3D Slicer there was a fog tab to add to a 3D scene. It had the merit of making more visible some structures by hiding in a progressive way the background. Was great for interactive presentations. Using the newer versions I don’t find it anymore. Is it hidden somewhere?

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [February 2, 2023, 8:15am UTC](https://discourse.slicer.org/t/fog-in-3d-rendering/27593/2 "2023-02-02T08:15:41Z")

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I remember we used to have it, but I believe the method we used became incompatible with newer vtk versions and we needed to drop it. I haven’t seen that feature in a while so it may be some work to bring it back.

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**Author:** ![Taote](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/taote/32/18270_2.png) [@Taote](https://discourse.slicer.org/u/Taote)\
**Post date:** [February 2, 2023, 2:09pm UTC](https://discourse.slicer.org/t/fog-in-3d-rendering/27593/3 "2023-02-02T14:09:09Z")

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Thanks Steve. I liked it very much as a display feature. Maybe someone is interested in working on that again.

JMS