
Sculk Vision
Visualize chunk performance with beautiful terrain-following overlays. See entity counts, tile entities, and lag sources in real-time. Sculk-themed with particles, waves, and floating holograms. 100% client-side.
Screenshots


About this Mod
Sculk Vision

See the invisible. Hunt the lag.
What is Sculk Vision?
Sculk Vision transforms the invisible world of chunk data into a stunning visual overlay. Inspired by the mysterious Sculk from the Deep Dark, this mod reveals the computational heartbeat of every chunk around you.
Press F6 and watch as colored overlays materialize on the terrain, showing you exactly where entities are clustering, where tile entities are accumulating, and where the Warden lurks.
Features
Intuitive Color Coding
| Color | Status | Meaning |
|---|---|---|
| π’ | Perfect | < 50 entities, < 10 tile entities |
| π‘ | Warning | 50-150 entities |
| π | Dangerous | 150-300 entities |
| π΄ | Critical | > 300 entities or > 50 tile entities |
| π£ | Loading | Chunk is being generated |
| π΅ | Sculk | Warden detected or Sculk Catalyst active |
Floating Holograms
Each chunk displays a hovering hologram with:
- Entity count - Total entities in the chunk
- Tile entity count - Hoppers, chests, furnaces, etc.
- Estimated MSPT - Approximate tick time contribution
- Status indicator - Visual confirmation of chunk state
Configuration
Full Mod Menu integration with adjustable settings:
- Toggle screen shake
- Toggle particles
- Toggle holograms
- Adjust overlay height offset
- Customize warning threshold (0-200 entities)
- Customize critical threshold (0-500 entities)
Configuration is saved to config/sculkvision.json
Technical Details
How It Works
- Heightmap Sampling - 25 points sampled per chunk (5x5 grid) for smooth terrain following
- Entity Counting - All entities within chunk bounds are tallied
- Async Updates - Analysis runs in background thread every 8 ticks
- Frustum Culling - Only visible chunks within render distance are processed
MSPT Estimation Formula
MSPT β (entities Γ 0.05) + (tile_entities Γ 0.15) + (sculk_active ? 0.5 : 0)
Note: This is an approximation. Actual server tick times vary based on entity AI complexity and mod interactions.
Available Versions
How to Install Sculk Vision on Your Client
Install the Mod Loader Locally
Install fabric for your local Minecraft version.
Download the Matching File
Choose the Sculk Vision file for fabric and Minecraft 1.21.11.
Install Mod
Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+9 more)
Server-side
β UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Does Sculk Vision need to be installed on the Minecraft server?
No. Modrinth marks Sculk Vision as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.
Which version and loader does Sculk Vision require?
Use a file for fabric and your exact Minecraft version. Supported versions include 1.21.11, 1.21.10, 1.21.9. Files for different loaders are not interchangeable.
Sculk Vision is not working β what should I check?
First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.
Similar Mods
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Sculk Vision stays on your client. Host a compatible world for your group.
Details
- License
- Creative Commons Attribution Non Commercial 4.0 International
- Server-side
- Unsupported