https://www.theseus.fi/handle/10024/40422
Physically Based Terrain Generation : Procedural Heightmap Generation Using Plate Tectonics -...
plate tectonicsphysicallybasedterraingeneration
https://blocks.roadtolarissa.com/fogleman/af71704ca42031d5a1a98cbfc45d95c9
Heightmap to Isolines by fogleman
heightmap
https://www.esenthel.com/forum/showthread.php?tid=3686&pid=24691
Edit::heightmap mini-tutorial?
editheightmapminitutorial
https://quickmap.dev/
QuickMap.dev - Free Heightmap Generator
Free heightmap generator for commercial and personal use. Create, edit, and export terrain heightmaps with multiple generation methods and real-time 3D preview.
quickmapdevfreeheightmapgenerator