CurseForge · Minecraft mod
FFMobSunBurnAngle
A mod that changes mob burning / spawning to be dependant on the sun angle. Has optional config to work through transparent blocks.
Quick answer
Which FFMobSunBurnAngle release should I use?
ffmobsunburnangle-1.2.0+1.21.1-neoforge.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is FFMobSunBurnAngle required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does ffmobsunburnangle-1.2.0+1.21.1-neoforge.jar need?
ffmobsunburnangle-1.2.0+1.21.1-neoforge.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add FFMobSunBurnAngle without breaking your instance.
Built for ffmobsunburnangle-1.2.0+1.21.1-neoforge.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use ffmobsunburnangle-1.2.0+1.21.1-neoforge.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside ffmobsunburnangle-1.2.0+1.21.1-neoforge.jar. It opens that exact file at the source.
About this project
What does FFMobSunBurnAngle add?
FFMobSunBurnAngle
A simple mod that changes how sunlight-sensitive mobs burn and (optionally) where monsters can spawn. Made for use with non-traditional type world generation (e.g. floating islands / tall cliffs / overhangs) and with performance in mind.

Features
- Directional sun burning – raycast toward the sun instead of a vertical sky check. Distance is configurable, ensure its near your simulation distance.
- Day-length compatible – uses the dimension’s celestial angle to work with season / better days mods
- Spawn prevention – (can disable) monsters cannot spawn with clear LOS to the sun. Used to prevent spawning in and immediately burning.
- Transparent blocks – optional pass-through for glass and non-occluding blocks
- Includes blacklist to prevent certain blocks (by default, leaves and mangroove roots) from being called "transparent"
- Mob filter – whitelist / blacklist / all modes for both burning and spawn checks
- Performance-oriented – staggered checks, shared sun-vector cache, per-mob decision cache
- Debug rays – optional client-side visualization
NOTES
- Mods don't catch on fire, or get put out, immediately. This is for performance, but also to try to mirror how vanilla causes mob burning.
What's with the FF prefix?
It stands for Fyxe's Features! Its a clean way to easily find all of my mods when changing configs or creating packs. Mods that are a part of the "FF" system are usually smaller and unintrusive.
Feedback
If you have any ideas for improvements, questions, or concerns, I am open to communicating through email: FyxeINCFeedback@gmail.com
Project description from CurseForge.
Pick your setup
FFMobSunBurnAngle by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
FFMobSunBurnAngle versions and loaders
ffmobsunburnangle-1.2.0+1.21.1-neoforge.jar
29 Sept 2026
ffmobsunburnangle-1.2.0+1.21.1-fabric.jar
29 Sept 2026
ffmobsunburnangle-1.1.3.jar
28 Sept 2026
Looking for an older file? The official CurseForge project page is in Resources.