zarkonnen / gengen

A generic world generation system.

Procedural Planet Generator

A procedural planet generator that uses a clever templating system and a mildly terrifying shader to produce an endless stream of alien planets. The description, appearance, and basic stats are all linked properly, so if the description says the plants are blue, the vegetation-covered parts of the surface are shown as blue, and so on. It should also mostly avoid impossibilities like land-dwelling creatures on water worlds.

Influences: An earlier project that generated entire SF universes at a shallower level. No Man's Sky. Sid Meier's Alpha Centauri.

Licensed as GPLv3. Other licenses available upon request. Feel free to ask questions or make suggestions.

Icons by streamlineicons.com.

Additional Contributors ✨

Thanks goes to these wonderful people:

• Efface Studios Image Download Code

gengen's Issues

Add a button to toggle the athmosphere

Please add a button to generate the planets without athmosphere.

I would do it myself, but I am curious, where in the code the athmosphere is generated

Add a button to export results to txt and png.

I like how this generator produces planets that are not too detailed yet not too low res. Just perfect for a big-picture overview that is useful in a game project.

I'd love there to be these 3 buttons:

1. Export description to a downloadable .txt file
2. Screenshot of the rendered sphere planet to a png file, as a 512x512px size image.
3. Export the rectangular surface world map as a png file, atleast 2048px wide image.

never understand how to do these things like downloading the planet as a fbx file or sum

add examples to Readme

Can you add some generated examples to the readme please.

Make offline version of GenGen

I just tried the updated GenGen and it is now fantastic! Its everything I wished it would have and I couldn't be any happier.

Currently, afaik it is a web online-only application, so if the website were to go down or if a content creator was without internet, they would not be able to use this wonderful tool.

I don't know how hard it is to make it work offline, but either way I'd be happy to have a downloadable version available on itch.io or Steam. I'd be even willing to buy it for 3$ as a customer and I'm sure other world builders out there would love to have this in their toolkit. It is tremendously useful.

Make pressing "save to png" *not* trigger randomize function

Currently the new "Save Image to PNG" function does not subdue the randomize planet function. I'd like to be able to look at the planet for a while longer even after saving it to a PNG.

The maps don't loop correctly

I downloaded some of the maps, that you get when you switch to the map-view and used them as .ppm maps with the linux xplanet tool to generate new planets, but I noticed, that the maps don't loop, so you get a sharp edge at the point, where one side of the map hits the other:

Is there a bug? and you don't get the whole map? I looked at it and I couldn't find any of the exact patterns you see on the map again on the from it generated planet in you tool???

nodeJS commandline to generate lots of planet pictures on the console

Please add a commandline version so you can use the tool on the console with node