# RGB or RGBA rendering of single 2D image in 3D not working

**URL:** <https://discourse.slicer.org/t/rgb-or-rgba-rendering-of-single-2d-image-in-3d-not-working/16649>\
**Category:** Support\
**Created:** [March 19, 2021, 5:05pm UTC](https://discourse.slicer.org/t/rgb-or-rgba-rendering-of-single-2d-image-in-3d-not-working/16649 "2021-03-19T17:05:18Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![klarlund](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/klarlund/32/7962_2.png) [@klarlund](https://discourse.slicer.org/u/klarlund)\
**Post date:** [March 19, 2021, 8:08pm UTC](https://discourse.slicer.org/t/rgb-or-rgba-rendering-of-single-2d-image-in-3d-not-working/16649/3 "2021-03-19T20:08:18Z")

</div>

Thanks, I’m unstuck now! Your answer in [Transform: scale - #6 by timeanddoctor](https://discourse.slicer.org/t/transform-scale/8731/6) is useful, too for folks in a similar situation, just remember to remove the alpha channel before loading the picture (I used gimp). Then register by moving the 3D volume. The picture allows one rotation and three translational degrees of freedom. Another hack I guess would be to let a reformat widget track the picture if it’s subjected to all 6 degrees of freedom, but your suggestion will do for now!

Also you taught me how to vote for a github issue – that somehow had eluded me until now.

---

_[View the full topic](https://discourse.slicer.org/t/rgb-or-rgba-rendering-of-single-2d-image-in-3d-not-working/16649)._