Optifine HD Mod 1.21.1 → 1.20.6

⚡️ FPS boost:

• Doubling the FPS is common.
• Decreases lag spikes and smooths gameplay.

🖼️ Support for HD Textures:

• HD textures and HD fonts (MCPatcher not needed).
• Custom terrain and item textures.
• Animated terrain and item textures.
• Custom HD Font character widths.
• Custom colors.
• Custom block color palettes.
• Custom lighting.
• Unlimited texture size.

🌈 Support for Shaders:

• Based on the Shaders Mod by Karyonix.

💡 Dynamic Lights:

• Allows handheld and dropped light emitting items to illuminate the objects around them.
• Similar, but not related to the Dynamic Lights mod.

🌍 Variable Render Distance:

• From Tiny to Extreme (2 x Far) in 16m steps.
• Sun, moon, and stars are visible in Tiny and Short distances.

☀️ Configurable Smooth Lighting:

• From 1% – smooth lighting without shadows.
• To 100% – smooth lighting with full shadows.

🖥️ Performance VSync:

• Synchronizes framerate with monitor refresh rate to remove split frames and smooth gameplay.

🖥️ Smart Advanced OpenGL:

• More efficient, fewer artifacts.
• Fast – faster, some artifacts are still visible.
• Fancy – slower, avoids visual artifacts.

☁️ Fog control:

• Fog: Fancy, Fast, OFF.
• Fog start: Near, Far.

📐 Minimaps:

• Visual effect which makes distant objects look better by smoothing the texture details.
• Mipmap level – OFF, 1, 2, 3, Max.
• Mipmap type – Nearest, Linear.

🔍 Anisotropic Filtering:

• Restores details in mipmapped textures.
• AF level – OFF, 2, 4, 8, 16 (depends on hardware support).

🖌️ Antialiasing:

• Smooths jagged lines and sharp color transitions.
• AA level – OFF, 2, 4, 6, 8, 12, 16 (depends on hardware support).

🌿 Better Grass:

• Fixes grass block side texture to match surrounding grass terrain.

❄️ Better Snow:

• Fixes transparent block textures to match surrounding snow terrain.

💧 Clear Water:

• Clear, transparent water with good visibility underwater.

🐾 Random Mobs:

• Use random mob textures if available in the texture pack.

🔗 Connected Textures:

• Connects textures for glass, glass panes, sandstone, and bookshelf blocks which are next to each other.

🌳 Natural Textures:

• Removes the gridlike pattern created by repeating blocks of the same type.
• Uses rotated and flipped variants of the base block texture.

⏱️ FPS control:

• Smooth FPS – stabilizes FPS by flushing the graphics driver buffers.
• Smooth Input – fixes stuck keys, slow input, and sound lag by setting correct thread priorities.

🧱 Chunk Loading Control:

• Load Far – loads the world chunks at distance Far, allows fast render distance switching.
• Preloaded Chunks – defines an area in which no new chunks will be loaded.
• Chunk Updates per Frame – allows for faster world loading.
• Dynamic Updates – loads more chunks per frame when the player is standing still.

⚙️ Configurable Details:

• Clouds – Default, Fast, Fancy.
• Cloud Height – from 0% to 100%.
• Trees – Default, Fast, Fancy.
• Grass – Default, Fast, Fancy.
• Water – Default, Fast, Fancy.
• Rain and Snow – Default, Fast, Fancy.
• Sky – ON, OFF.
• Stars – ON, OFF.
• Sun & Moon – ON, OFF.
• Depth Fog – ON, OFF.
• Weather – ON, OFF.
• Swamp Colors – ON, OFF.
• Smooth Biomes – ON, OFF.
• Custom Fonts – ON, OFF.
• Custom Colors – ON, OFF.
• Show Capes – ON, OFF (supports HD capes).

🎮 Configurable Animations:

• Water Animated – OFF, Dynamic, ON.
• Lava Animated – OFF, Dynamic, ON.
• Fire Animated – OFF, ON.
• Portal Animated – OFF, ON.
• Redstone Animated – OFF, ON.
• Explosion Animated – OFF, ON.
• Flame Animated – OFF, ON.
• Smoke Animated – OFF, ON.
• Void Particles – OFF, ON.
• Water Particles – OFF, ON.
• Rain Splash – OFF, ON.
• Portal Particles – OFF, ON.
• Dripping Water/Lava – OFF, ON.
• Terrain Animated – OFF, ON.
• Items Animated – OFF, ON.

🔄 Fast Texturepack Switching:

• Switch the current Texturepack without leaving the world.

🖥️ Fullscreen Resolution:

• Configurable fullscreen resolution.

🐛 Debug:

• Fast Debug Info – removes lagometer from debug screen.
• Debug Profiler – removes profiler from debug screen.

⏰ Time Control:

• Default, Day Only, or Night Only – works only in Creative mode.

💾 Autosave:

• Configurable Autosave interval.
• A fix for the famous Lag Spike of Death.