Add interior lighting to stations

[tatjam]

Makes ships that are inside stations (as defined on the model file using tags and a series of new parser commands) have increased ambient light and reduced direct lightning, fixing the issue of black ships on eclipsed stations (Issue #4399).

TO-DO:

• [x] Working interiors
• [x] Make all stations compatible with the code
• [ ] Adjustable lighting colors with some kind of station config?
• [x] Make it work with the ship cockpit and other bodies that may be found inside stations

Demo: https://www.youtube.com/watch?v=D56iUkvpOac

[impaktor]

Adjustable lighting colors with some kind of station config?

Stations in Haber space are blood red.

[fluffyfreak]

That's an interesting approach, another might be to gather the nearest 3 or 4 lights from within the station and apply them as light sources to the ship. However I'm not sure if "lights" like that are defined in the model or if that's something that could be done later.

[nozmajner]

There are no lights in the model. I can add them if needed. Not sure if Blender lights are exported to collada, with their settings. Or they could be tags.

[tatjam]

Love the idea, that way it's more in-line with the new PBR renderer idea. Guess adjusting ambient lighting is useful even then, if no dynamical env-maps are used.

Even if actual lights are used I guess the interior checking is important, to prevent outside ships from being lit. (Otherwise shadow casting is needed, or really thick exterior walls).

[nozmajner]

I'd suggest first doing the ambient light only, get it to merge, and then you can think about the next step, or if you want to do other features instead. No need to build a huge PR, especially when you are still getting your feet wet. This is a free-time passion project after all, avoid burnout and such!

[tatjam]

If I'm not mistaken all stations use either hub A o B so that should be done. Going to quickly find a "A" type station to see if it works

[nozmajner]

Yes, all stations use those two hubs.

[impaktor]

@tatjam For testing big vs. small ships, I assume you're aware of Ctrl+i to change your ship model.

[tatjam]

Messed around a bit with various ships and a fixed fade value feels good. There's really not any ship that's so long its center is way outside the station before it visually is outside.

[impaktor]

@tatjam If you're feeling done, please rebase commits if/as needed, and remove draft status on PR

[tatjam]

Fine! The custom light feature could be implemented later on if needed.

[impaktor]

Going to need some review on this @Web-eWorks or/and @fluffyfreak

[Web-eWorks]

Will do - not had a chance to get to this yet but it's been on my TODO list.