List of impossible add-ons

Discussion forum for Celestia developers; topics may only be started by members of the developers group, but anyone can post replies.
Topic author
Posts: 694
Joined: 10.08.2016
With us: 4 years 9 months

List of impossible add-ons

Post #1by john71 » 21.04.2021, 18:20

Are there any add-ons which cannot be realized in Celestia

It seems that in the last 20 years every possible idea surfaced...

Or am I wrong? :think:

Posts: 551
Joined: 08.10.2019
With us: 1 year 7 months

Post #2by SevenSpheres » 21.04.2021, 18:56

List of things that (as far as I know) are completely impossible in Celestia, even with workarounds, scripting, etc:

  • A file that completely removes an object defined in another file.
  • Stars with impossible colors, like green or purple (there are workarounds for this, but none that change the actual glow color of the star).
  • Anything that involves stars changing over time, since unlike ssc and dsc objects, it's impossible to make a star invisible, even using a script.
  • Stellar proper motion, and motion of DSOs.
  • Stars farther than the render limit (10 million light-years for 1.6, or 1 billion light-years for 1.7).
  • Objects with both LunarLambert and a SpecularTexture.
  • LunarLambert for clouds.
  • AltSurfaces for clouds, stars, etc.
  • Gravitational lensing.
  • Objects smaller than ~1 cm.
Will update if I think of more.
My Addons: viewtopic.php?f=23&t=19978 • (formerly) Contributing to development as much as I can • Discord server admin
PC specs: HP desktop, Windows 10 Home 64-bit, Intel Core i7-7700 (3.60 GHz), 16 GB RAM, 1 TB HDD + 128 GB SSD, Intel HD Graphics 630
Celestia versions: 1.5.1, 1.6.1, 1.6.2 (primary), 1.7.0 (latest build + some older ones)

Topic author
Posts: 694
Joined: 10.08.2016
With us: 4 years 9 months

Post #3by john71 » 21.04.2021, 19:40

Whoa, very nice list.

You can have strange colored stars, but without the glow:

strange sun.png

You can have very small objects, but Celestia won't show them, only as a point.

Return to “Ideas & News”

Who is online