Terrain Generator - Godot v4.1.1

This Godot project can create a chunk based mesh-array with collisions and navigation.

It's not yet ready to be used in a real project! It's just a fun project of mine to learn mesh generation (I added some explanations as comments for myself, maybe they're helpful for you too).

Usage

If you do want to use it in your project, just follow these steps:

1. Copy the script TerrainGenerator.gd and attach it to a Node3D
2. Save your scene and then reload the saved scene
3. Fill in the exported variables with values you like (Saved scene's already set up with values I like)
4. Hit Create New Terrain, Create Water Mesh, Create Collision Mesh & Create Navigation Region

Hints

• Don't set d_draw_spheres to true for big terrains or high values of terrain_resolution. Godot likes to crash if you do..
• It takes around 6 to 7 seconds for a terrain of size 1024x1024 with a chunk size of 64 _{^{(On an i5-9400 with 8GB of RAM - integrated GPU)}}
• Be careful with the noise configuration values, too harsh of a change might make your terrain look funky
• Try to balance the noise_height_modifier & the heightmap_modifier when sampling a heightmap
• Edit the exported variable navigation_mesh to adapt it to your requirements
• The same is true for the exported variable shader_material that's currently used to color the terrain
• Try to balance the values for noise_height_modifier & max_rock_height (in the shader settings) with the terrain_unit_size _{^{(Multiplying both values with the terrain_unit_size seems to work pretty good from a bit of testing)}}

ToDo

• Add unit size changing _{^{(1u in Godot multiplied by X to stretch the terrain)}}
• Add center_terrain _{^{(You can set the flag but it's not doing anything..)}}
• Add signals
• Add edge falloff by heightmap or by code _{^{(Could take some percentage and check against current x/z position -> Should be faster than sampling another heightmap)}}
• Better shaders _{^{(Urgent! Current shader looks real bad for bigger terrain.. UV-Positions were all over the place..)}}
• Fix scene not starting anymore 😠
• Create a water mesh & shader
• Fix shader breaking on window resize
• Add unit tests 🙈
• Fix navigation regions' weird pattern when increasing terrain_unit_size_{^{(Looks like a 45° top down tile..)}}
• ...