# Retro 3D anaglyph

**URL:** <https://discourse.julialang.org/t/retro-3d-anaglyph/132237>\
**Category:** Offtopic\
**Tags:** gmt\
**Created:** [September 9, 2025, 6:17pm UTC](https://discourse.julialang.org/t/retro-3d-anaglyph/132237 "2025-09-09T18:17:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![joa-quim](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/joa-quim/32/227_2.png) [@joa-quim](https://discourse.julialang.org/u/joa-quim)\
**Post date:** [September 9, 2025, 6:17pm UTC](https://discourse.julialang.org/t/retro-3d-anaglyph/132237/1 "2025-09-09T18:17:27Z")

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If you have saudades of those old 3D movies and can still find a pair of red-cyan glasses, you can appreciate this reborn [anaglyph](https://www.generic-mapping-tools.org/GMTjl_doc/documentation/utilities/anaglyph/index.html#anaglyph).

Tonga Trench

```julia-auto
using GMT

I = anaglyph("@earth_relief_30s", R="-175.8/-171/-23/-14", view3d=true)
viz(I)

```

 ![GMTjl_j-or8](https://global.discourse-cdn.com/julialang/original/3X/e/5/e5b124adbaf60ece41e9bf66ca2fa99cb67fb577.jpeg)

---

<div class="post-metadata">

**Author:** ![TimG](https://avatars.discourse-cdn.com/v4/letter/t/82dd89/32.png) [@TimG](https://discourse.julialang.org/u/TimG)\
**Post date:** [September 10, 2025, 10:34am UTC](https://discourse.julialang.org/t/retro-3d-anaglyph/132237/2 "2025-09-10T10:34:53Z")

</div>

> [@joa-quim](#):
>
> saudades

[Saudade - Wikipedia](https://en.wikipedia.org/wiki/Saudade)