# Worldgen Update: Terrain, Structures, LOD, and Voxy Support
## Improvements
- Significantly improved cave generation.
- Fixed missing structures in some areas (e.g., Ancient Cities, Ocean Monuments).
- Improved biome transitions for a more natural look.
- Major improvements to surface decoration (will continue to be refined over time).
- Initial mitigation for terrain holes caused by bad DEM source data (some locations may still have issues).
## New Features
- **ArcticDEM 2m (Optional DEM Provider)**
- Added **ArcticDEM 2m** as an additional (optional) DEM provider.
- Works only in Arctic regions. Coverage: https://www.pgc.umn.edu/data/arcticdem/
- Outside supported areas, Tellus falls back to **Terrarium DEM tiles**.
- **Faster LOD Render Option (WIP)**
- Added a new faster LOD render mode (work in progress).
- Less accurate for now, but may replace the current fast LODs if detail can be preserved without affecting generation speed.
- **Voxy Compatibility**
- Added **Voxy** to compatibility settings.
- Enables Tellus to generate chunks for Voxy to ingest and render far distances without needing to explore chunks first.
- Tracks player movement to keep generating new chunks automatically.
- **Note:** Voxy requires full chunk data, so terrain generation is much slower than with **Distant Horizons**, but distant terrain quality is generally better.
## Compatibility & Behavior
- If **Distant Horizons** or **Voxy** is not installed, related options will be disabled in the config screen.
- Added a warning if both mods are installed:
- Tellus will **prioritize Distant Horizons**
- Tellus will **disable Voxy terrain generation**
## Configuration Changes
- **Height Offset** can now go down to **-2000** for taller mountains and more dramatic terrain (at the cost of reduced ocean depth).
- Added two new buttons to the config screen:
- **Restore Defaults**
- **Select Preset** *(not enabled yet)*
- Settings are now saved when exiting the world config screen.
## Work in Progress
- **OpenStreetMap features**
- Streets, buildings, and more accurate water bodies in some areas.
- Chunk generation speed may be heavily impacted; optimization is ongoing.
- Better server-side support.
- NeoForge support.
- Backports to other versions (current target: **1.21.1**) and preparation for the upcoming **Minecraft 26.1** update.
Developer information
Projects on Modrinth are automatically available through a Maven repository for use with JVM build tools such as Gradle.
maven { name = "Modrinth"; url = "https://api.modrinth.com/maven" }