# Slices in 3D views are blended with the slice view colour on one side

**URL:** <https://discourse.slicer.org/t/slices-in-3d-views-are-blended-with-the-slice-view-colour-on-one-side/40260>\
**Category:** Support\
**Created:** [November 19, 2024, 9:48am UTC](https://discourse.slicer.org/t/slices-in-3d-views-are-blended-with-the-slice-view-colour-on-one-side/40260 "2024-11-19T09:48:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![chir.set](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/chir.set/32/66982_2.png) [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Post date:** [November 19, 2024, 9:48am UTC](https://discourse.slicer.org/t/slices-in-3d-views-are-blended-with-the-slice-view-colour-on-one-side/40260/1 "2024-11-19T09:48:22Z")

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Hello,

I just noticed this curious display. If we show the red slice view in 3D, it looks as expected when looking from below, but is red tainted when looking from the top. That’s true for the other default slice views: normal on one side, tainted on the other side.

![Blended_Slice_View](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/5/b/5bf91747d12e3a402ea4accb8d0b0ffcd217c95e.gif)

Is it intended to distinguish the view point or does it need a fix?

Thank you.

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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:** [November 19, 2024, 1:40pm UTC](https://discourse.slicer.org/t/slices-in-3d-views-are-blended-with-the-slice-view-colour-on-one-side/40260/2 "2024-11-19T13:40:16Z")

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Thanks for reporting this. I can replicate this in a recent preview build, but it doesn’t happen in 5.6.2.

I filed and issue: [Slices visible in 3D get color changes depending on view direction · Issue #8055 · Slicer/Slicer · GitHub](https://github.com/Slicer/Slicer/issues/8055)

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**Author:** ![Sunderlandkyl](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sunderlandkyl/32/79987_2.png) [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Post date:** [November 19, 2024, 6:51pm UTC](https://discourse.slicer.org/t/slices-in-3d-views-are-blended-with-the-slice-view-colour-on-one-side/40260/3 "2024-11-19T18:51:53Z")

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Fixed in this PR: [BUG: Fix backface color on Slice nodes in 3D views by Sunderlandkyl · Pull Request #8056 · Slicer/Slicer · GitHub](https://github.com/Slicer/Slicer/pull/8056)

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<div class="post-metadata">

**Author:** ![chir.set](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/chir.set/32/66982_2.png) [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Post date:** [November 19, 2024, 7:21pm UTC](https://discourse.slicer.org/t/slices-in-3d-views-are-blended-with-the-slice-view-colour-on-one-side/40260/4 "2024-11-19T19:21:23Z")

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> [@Sunderlandkyl](#):
>
> Fixed in this PR

Great, thank you.

[reaching 20 characters 😄]