# 3D cardboard with Synfig **URL:** \ **Category:** Animation related help\ **Created:** [October 31, 2025, 7:16pm UTC](https://forums.synfig.org/t/3d-cardboard-with-synfig/16840 "2025-10-31T19:16:23Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Mitigana](https://forums.synfig.org/letter_avatar_proxy/v4/letter/m/50afbb/32.png) [@Mitigana](https://forums.synfig.org/u/Mitigana)\ **Post date:** [October 31, 2025, 7:16pm UTC](https://forums.synfig.org/t/3d-cardboard-with-synfig/16840/1 "2025-10-31T19:16:23Z")
Hello everyone! My son recently gave me a cardboard viewer, and I immediately started creating my own 3D animations. Well, it’s just a trial run for now. Synfig is well-suited to this kind of experiment because you can precisely adjust the image offset, which ultimately creates that 3D effect. I’ll let you see what it looks like initially. https://www.youtube.com/embed/U6MT6uuGODA?feature=oembed&wmode=opaque It’s just a static simulation to calculate different depths by shifting a few pixels. My question is whether you can duplicate a spline and apply an offset so that it ends up in the right eyepiece… Thanks for your answers. ![hqdefault](https://forums.synfig.org/uploads/default/original/2X/a/a6c4c56b2f6abe8cd69c3b807892a80f1706adcd.jpeg) ---
**Author:** ![rodolforg](https://forums.synfig.org/letter_avatar_proxy/v4/letter/r/c68b51/32.png) [@rodolforg](https://forums.synfig.org/u/rodolforg)\ **Post date:** [November 1, 2025, 7:38am UTC](https://forums.synfig.org/t/3d-cardboard-with-synfig/16840/2 "2025-11-01T07:38:27Z")
> [@Mitigana](#): > > My question is whether you can duplicate a spline and apply an offset so that it ends up in the right eyepiece… You can use converters to do it. Here are two resources to learn them: https://www.youtube.com/embed/odlPI6hfnDM?feature=oembed&wmode=opaque&list=PLJ1s8hm5LwbTlUt_kOmQ04hK5uaCgpCh7 > **[Converters — Synfig User Manual 1.5.1 documentation](https://synfig.readthedocs.io/en/latest/converters.html)**