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OptiNotFine

Fixing OptiFine, until something better comes.
by Desoroxxx
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37,129 downloads
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Updated Jul 6, 2026
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Bug Fixes

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OptiNotFine

Fixing OptiFine, until something better comes.

Features

  • Stop Log Spam
    • This removes some logging calls that OptiFine will spam over and over again, here’s a list of them:
    • [HH:MM:SS] [Client thread/WARN] [Config]: [OptiFine] Ambiguous shader option: {}
    • [HH:MM:SS] [Client thread/WARN] [Config]: [OptiFine] Unknown macro value: {}
    • [HH:MM:SS] [Client thread/WARN] [Config]: [OptiFine] Shaders: Item not found: {}
    • [HH:MM:SS] [Client thread/WARN] [Config]: [OptiFine] Shaders: Block not found for name: {}
    • [HH:MM:SS] [Client thread/WARN] [Config]: [OptiFine] Shaders: Invalid item ID mapping: {}
    • [HH:MM:SS] [Client thread/WARN] [Config]: [OptiFine] Shaders: Invalid block ID mapping: {}
    • [HH:MM:SS] [Client thread/WARN] [Config]: [OptiFine] Shaders: Invalid entity ID mapping: {}
    • [HH:MM:SS] [Client thread/INFO] [net.optifine.shaders.SMCLog]: {}

Fixes

  • Fix missing methods
    • Currently, OptiNotFine re-adds missing methods that OptiFine accidentally removes; here’s a list of them:
    • net.minecraft.client.resources.AbstractResourcePack#getResourcePackFile()
  • Fix broken F3 native memory usage display on Java 17+
    • In Java 17+ the classes OptiFine tries to use to display native memory usage have been moved to a different package, OptiNotFine fixes this by adding the new locations to the list of classes to use.

FAQ

  • What happens if OptiFine isn’t present?
    • Nothing, this can be safely included in any modpack.
  • This doesn't fix X?
    • If you have found an issue with OptiFine, create an issue.

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If you're looking for a mod but don't have the development skills or time, consider commissioning me! My commissions are currently open, and I’d be happy to create a custom mod to fit your needs as long as you provide assets.

Commissions

You can also support me on a monthly basis by becoming a member. To thank you, you’ll have the possibility to access exclusive post and messages, Discord channel for WIP content, and even access to unreleased Prototypes or WIP Projects.

Membership

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OptiNotFine 1.0
MC Client, Forge, 1.12.2
Release 2026-01-09 Get

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