Update Saturn system data, models & textures - Githubissues

CelestiaProject / CelestiaContent

Data files for Celestia space simulator

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Update Saturn system data, models & textures #52

Closed SevenSpheres closed 3 years ago

SevenSpheres commented 3 years ago

Changes include:

Textures for Saturn and its major moons updated, including a combined surface/specular texture for Titan.
Models for many of Saturn's moons added or updated.
Recently discovered minor moons added.

As well as:

Optimized Phobos' model (the new one is from Project Echoes, which is derived from the same source but is smaller).
Given Celestia#834 and Celestia#1131, I'm not using LunarLambert for the giant planets, pending gamma correction implementation. Some of Saturn's moons still appear very bright, but given their high albedos that might be realistic?

Things I'd like to add, maybe in a future PR:

More textures for Saturn's minor moons.
Normal maps for Enceladus, Rhea, and Iapetus. There are height maps by Paul Schenk, but they have no stated license, and I don't know how to convert them to correctly scaled normal maps. (Also better normal maps for Tethys and Dione, with the same issue of not knowing how to convert them.)