Minecraft performance tuning and advanced graphics!

OptiFine
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OptiFine 1.21.4 HD Ultra J3

  -  7.08 MB  -  Freeware
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  • Latest Version

    OptiFine 1.21.11 HD U J9

  • Operating System

    Windows 7 / Windows 8 / Windows 10 / Windows 11

  • User Rating

    Click to vote

  • Author / Product

    OptiFine Team / External Link

  • Filename

    OptiFine_1.21.4_HD_U_J3.jar

  • MD5 Checksum

    c52ddc7f7cde04777ae4f42473ef0f62

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of OptiFine 1.21.4 HD Ultra J3.


For those interested in downloading the most recent release of OptiFine or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download OptiFine 1.21.4 HD Ultra J3
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  • OptiFine 1.21.4 HD Ultra J3 Screenshots

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    OptiFine 1.21.4 HD Ultra J3 Screenshot 1
  • OptiFine 1.21.4 HD Ultra J3 Screenshot 2
  • OptiFine 1.21.4 HD Ultra J3 Screenshot 3
  • OptiFine 1.21.4 HD Ultra J3 Screenshot 4
  • OptiFine 1.21.4 HD Ultra J3 Screenshot 5

What's new in this version:

 - optimized chunk loading
 - fixed custom color for infested potion (#7829)
 - fixed chunk loading (#7788)
 - fixed block breaking particles with AF (#7878)
 - fixed custom water bottle color (#7803)
 - added CIT compatibility for axolotl bucket variants (#7862)
 - fixed horizon overlapping custom sky (#7875)
 - fixed chunk rendering optimization
 - fixed ender dragon random textures (#3750)
 - fixed player invisible when flying (#7849, #7831)
 - fixed clouds color on sunset with fog off
 - fixed dark CIT items in GUI
 - fixed blocking on startup when Custom Items are disabled (#7858)
 - fixed blurry textures with AA/AF (#7828)
 - ddded CIT variants for brush, spyglass and trident
 - fixed CIT shield models
 - fixed custom spawn egg colors
 - fixed CIT model variants
 - fixed fallback for randomized CEM models
 - fixed breaking particle for custom models
 - fixed CIT for armor
 - fixed custom model warnings
 - fixed CIT with resource pack overlays
 - added CEM baby models for villager, strider and strider_saddle
 - fixed CIT model resolving and relative paths
 - fixed Forge crash when breaking a tool
 - fixed custom models registration
 - fixed custom item models
 - fixed custom items
 - fixed custom colors
 - fixed item emissive textures
 - fixed custom sky blending
 - fixed custom end sky color
 - fixed CEM leash offset
 - fixed CEM for banner
 - fixed CEM for sign, hanging sign
 - fixed CEM for skull, shield and trident
 - fixed CEM for glow squid (#7834)
 - fixed shaders normal/specular textures filtering (#7822)
 - fixed crash in Forge particle rendering (#7833)
 - fixed custom lightmaps
 - fixed crash when sky is disabled
 - updated to 1.21.4
 - compatible with Forge 54.0.34

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