Hi all,
Based on this article
https://docs.godotengine.org/en/stable/tutorials/shaders/using_viewport_as_texture.html I've made a small utility for editing planets, you can try it out and share your creations here.
there is nothing to win, just the joy to participate!

The planet is rendered with OGLCScene, a 2D game engine that use OpenGL 3.3 core.
Tested and work on Win10 and Ubuntu 20.04. Should work on macOS compatible with OpenGL 3.3 core.
In order to compile, first you have to install the package LazOpenGLContext and BGRABitmap.
Download the OGLCScene library in the release section at
https://github.com/Lulu04/OGLCSceneIn the folder "tools/PlanetDesigner", compile the project "PlanetDesigner.lpi".
After you run the project, you can recall the existing presets: button "PRESETS" -> choose one in the list.
Play with the parameters to make your planet. When you're done, create a new preset to save it ("PRESETS"->Add)
You can share your creation here (in this forum):
- in the software, click "Export to clipboard" (your preset is copied into the clipboard)
- in this forum thread click on REPLY, right click to paste.
You can import the creation posted by other users:
- from the reply in the forum, click "SELECT" above the preset
- right click to copy into the clipboard
- and in the Planet Designer, click "import from forum" and paste.
Zoom with the mouse wheel.
Note: if you post a screenshot, try to use jpg format to minimize the size of the file.