© 2026 Hedgehog Software, LLC

TwitterGitHubDiscord
More
CommunitiesDocsAboutTermsPrivacy
Search
Star
Setup for Free
The Iris ProjectTIP
The Iris Project•5mo ago•
14 replies
kingofwarcraft

Iris wont load Shaders

Hello,

im on minecraft version 1.21.1 using iris-neoforge-1.8.12+mc1.21.1.jar and every time i try to load a shader i get the following error code: shadow_solid: java.lang.IllegalArgumentException. Anyone have any idea what this could be?

Thanks!
Solution
Seems like you're running a beta version of Iris? If you got it somewhere here, see if downloading and using the one on Modrinth changes anything.
Jump to solution
The Iris Project banner
The Iris ProjectJoin
This server is all about the development and community around Iris Shaders!
71,314Members
Resources

Similar Threads

Was this page helpful?
Recent Announcements

Similar Threads

Shaders wont load
The Iris ProjectTIPThe Iris Project / iris-issues
2y ago
iris shaders
The Iris ProjectTIPThe Iris Project / iris-issues
2y ago
Iris Shaders:
The Iris ProjectTIPThe Iris Project / iris-issues
2y ago
Iris shaders will not load at all.
The Iris ProjectTIPThe Iris Project / iris-issues
2y ago