# The volume rendering feature in my slicer is not working

**URL:** <https://discourse.slicer.org/t/the-volume-rendering-feature-in-my-slicer-is-not-working/35358>\
**Category:** Support\
**Tags:** volume-rendering\
**Created:** [April 8, 2024, 4:10pm UTC](https://discourse.slicer.org/t/the-volume-rendering-feature-in-my-slicer-is-not-working/35358 "2024-04-08T16:10:52Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![zeeshan](https://avatars.discourse-cdn.com/v4/letter/z/c4cdca/32.png) [@zeeshan](https://discourse.slicer.org/u/zeeshan)\
**Post date:** [April 8, 2024, 4:10pm UTC](https://discourse.slicer.org/t/the-volume-rendering-feature-in-my-slicer-is-not-working/35358/1 "2024-04-08T16:10:52Z")

</div>

![3](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/6/96ef104d0c47015b73daef9e9beba703fa0f8b59.png)  
My volume rendering option is not working. I am unable to see a 3D model after volume rendering. Kindly check this issue.

---

<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [April 8, 2024, 4:16pm UTC](https://discourse.slicer.org/t/the-volume-rendering-feature-in-my-slicer-is-not-working/35358/2 "2024-04-08T16:16:17Z")

</div>

It looks like the CT image was acquired with a tilted gantry, which results in a warping transformation. To volume-render a warped volume, the warping transform must be hardened on the volume (see [related issue](https://github.com/Slicer/Slicer/issues/6648)). You can do that in Data module: in the volume’s row, right-click on the transforms column and click `Harden transform`.