OptiFine HD for Minecraft (1.21.4, 1.20.1) – Smoother Gameplay, Shader Support

🎮 Performance & FPS Boost

• FPS boost – doubles or triples your frame rate
• Reduces lag spikes and stuttering
• Smart Advanced OpenGL – fewer artifacts and faster rendering
• Smooth FPS and Input – better responsiveness and input handling
• Fast Math – optimized lookup tables for quicker rendering
• VSync – synchronize frame rate with monitor refresh

🖼️ Graphics Enhancements & Shaders

• Support for shaders (based on Shaders Mod by Karyonix)
• Custom sky, lighting, fog, and colors
• Fog control – Fancy, Fast, or OFF
• Connected & Natural Textures
• Clear Water, Better Grass, Better Snow
• Custom HD Font support
• Custom block color palettes

🧩 HD Textures & Resource Packs

• Support for high-resolution textures & fonts (MCPatcher not needed)
• Animated terrain and item textures
• Unlimited texture size
• Fast texture pack switching without leaving the world

🌍 Render Distance & World Loading

• Adjustable render distance – from Tiny to Extreme (2x Far)
• Preloaded chunks, dynamic updates, and load distance control
• Chunk updates per frame – speeds up loading

⚙️ Advanced Settings

• Antialiasing (AA) and Anisotropic Filtering (AF)
• Mipmaps – improves distant object textures
• Configurable cloud height, tree detail, rain/snow rendering
• Weather effects, sky, sun/moon, stars toggle

🎞️ Animations & Visual Control

• Toggle animations: water, lava, fire, portal, redstone, particles
• Control dripping effects, splash, and terrain animations

🛠️ Utility & Miscellaneous

• Fullscreen resolution control
• Debug screen customization
• Autosave interval control (fixes Lag Spike of Death)
• Time control in Creative Mode: Day Only or Night Only
• Show/Hide HD Capes