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Frieren Flight - Iron's Spells

An immersive magic addon for Iron's Spells 'n Spellbooks Inspired by Sousou no Frieren (葬送のフリーレン) and featuring iconic magic from KonoSuba!
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zoltraak_cinematic-neoforge-1.21.1-1.0.3.jar

File namezoltraak_cinematic-neoforge-1.21.1-1.0.3.jar
Uploader
LINGling01LINGling01
Uploaded
Oct 22, 2026
Downloads
43
Size
2.8 MB
Mod Loaders
NeoForge
File ID
9287048
Type
B
Beta
Supported game versions
  • 1.21.1

Curse Maven Snippet

NeoForge

implementation "curse.maven:frieren-flight-irons-spells-1706277:9287048"

Learn more about Curse Maven

What's new

The game freezes or crashes when I use a defensive spell.
java.lang.IllegalStateException: Not building!
DefenseBarrierRenderer.java:439

It turns out this wasn't related to your GPU at all (which is why both Ryzen APUs and RTX GPUs encountered the exact same error). The barrier renderer was interleaving custom render passes without releasing vanilla Minecraft's shared vertex buffer, triggering an IllegalStateException: Not building! crash on instances without multi-buffer shader mods.  

 We have rewritten the barrier draw calls into dedicated, sequential render passes in v1.0.3 Please update your mod jar to the latest release and the defensive magic will work smoothly

Details of further updates

This mod has no additional files