Minecraft performance tuning and advanced graphics!

OptiFine 1.17.1 HD Ultra H1

November, 3rd 2021 - 6.05 MB - Freeware

Free Download

Security Status

Latest Version

OptiFine 1.20.1 HD Ultra I6
Operating System

Windows XP / XP64 / Vista / Vista64 / Windows 7 / Windows 7 64 / Windows 8 / Windows 8 64 / Windows 10 / Windows 10 64
User Rating

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Author / Product

OptiFine Team / External Link
Filename

OptiFine_1.17.1_HD_U_H1.jar
MD5 Checksum

ce4d0bc85481fc8e8ba10ab0106c9a5f

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 1.17.1 HD Ultra H1.

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.

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Download OptiFine 1.17.1 HD Ultra H1

OptiFine 1.17.1 HD Ultra H1 Screenshots

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What's new in this version:

- added support for the microsoft store launcher
- more smooth lighting fixes
- fixed crash with shaders velocity and disabled random entities
- fixed water smooth lighting
- fixed smooth lighting
- updated ChunkLayerSet to implement Set interface
- separated memory allocation and GC rate
- optimized render states
- restored Forge particle culling, disabled for guardian effect
- fixed breaking animation with shaders uniform renderStage
- fix mipmaps for glass pane top
- fixed resizing of animated sprites with fixed height
- fixed water cauldron legacy alias
- renamed grass path to dirt path
- fixed crash with different normal/specular texture animations
- fixed Custom GUIs
- fixed black entities on Intel with render regions
- optimized chunk culling
- fixed chunk loading for singleplayer/multiplayer
- fixed shaders programs gbuffers_beacon_beam and gbuffers_entity_glowing
- fixed OpenGL error on reloading resources
- fixed black entities with anisotropic filtering
- updated native memory monitor to work with Java 16
- updated SRG mappings
- fixed glow squid dynamic light on damage
- fixed compute shader validation on AMD
- compatible with Forge 37.0.103