# superpose multi-Volume

**URL:** https://discourse.vtk.org/t/superpose-multi-volume/1458
**Category:** Development
**Created:** [July 31, 2019, 10:17am UTC](https://discourse.vtk.org/t/superpose-multi-volume/1458 "2019-07-31T10:17:28Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![Moun](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/m/d9b06d/32.png) [@Moun](https://discourse.vtk.org/u/Moun)
#### Post date: [July 31, 2019, 10:17am UTC](https://discourse.vtk.org/t/superpose-multi-volume/1458/1 "2019-07-31T10:17:28Z")

</div>

Hello,  
I need to show multi-volume in the same render. But, I can’t superpose them.  
How can I do that, please?

---

<div class="post-metadata">

### Author: ![lassoan](https://discourse.vtk.org/user_avatar/discourse.vtk.org/lassoan/32/50_2.png) [@lassoan](https://discourse.vtk.org/u/lassoan)
#### Post date: [August 1, 2019, 2:23pm UTC](https://discourse.vtk.org/t/superpose-multi-volume/1458/2 "2019-08-01T14:23:51Z")

</div>

See this example:

> <https://github.com/Kitware/VTK/blob/master/Rendering/Volume/Testing/Cxx/TestGPURayCastMultiVolumeOverlapping.cxx>

Note that multi-volume rendering still has limitations, such as shading is not available, and there are also a few small bugs, but they will be probably resolved within a year. If you need it sooner then you may consider contributing with development work or funding.