# Grim Rune Terrain Generator

A standalone Rust terrain generator using `egui`, using a terrain generation method by Runevision (Skovbo Johansen).

See here:

https://www.shadertoy.com/view/wXcfWn
https://www.shadertoy.com/view/sf23W1
https://blog.runevision.com/2026/03/fast-and-gorgeous-erosion-filter.html
https://www.youtube.com/watch?v=r4V21_uUK8Y

## Building:

```bash
git clone https://codeberg.org/Grimsace/advanced_erosion_terrain_heightmap_generation.git
cargo build --release
```

## Running:

Download the latest release!

## Current UI

The app uses an `egui` desktop interface with:

- A left control panel with `Generation` and `Advanced` tabs
- Generation controls for image width, image height, generation scale, erosion scale, and random seed
- Advanced controls for strength, gully weight, detail, and octaves
- A right preview area showing both the normalized heightmap and the shaded bumpmap