[1.3.1]OptiFine HD - FPS Boost, Lag Reducer, and HD Textures!

"This mod adds support for HD textures and a lot of options for better looks and performance. Doubling the FPS is common."

Features:

FPS boost
- doubling the FPS is common
- decreases lag spikes and smooths gameplay
Support for HD Textures
- HD textures and HD fonts
- custom terrain and item textures
- animated terrain and item textures
- custom HD Font character widths
- custom colors
- custom block color palettes
- unlimited texture size
Variable Render Distance
- from Tiny to Extreme (2 x Far) in 16m steps
- sun, moon and stars are visible in Tiny and Short distance
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, less artifacts
- Fast - faster, some artifacts still visible
- Fancy - slower, avoids visual artifacts
Fog control
- Fog: Fancy, Fast, OFF
- Fog start: Near, Far
Mipmaps
Visual effect which makes distant objects look better by smoothing the texture details
- Mipmap level - OFF, 1, 2, 3, Max
- Mipmap type - Nearest, Linear
Check the OptiFine AA edition for even better texture smoothing with Antialiasing and Anisotropic Filtering.
Better Grass
Fixes grass blocks side texture to match surrounding grass terrain
Better Snow
Fixes transparent blocks 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.
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
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 in only in Creative mode
Autosave
- Configurable Autosave interval
- A fix for the famous Lag Spike of Death

Which version are You?

Compatability:

If you need ModLoader: Install OptiFine AFTER ModLoader.
If you need Forge: Install OptiFine AFTER Forge.
MCPatcher is NOT needed for HD textures, HD fonts and BetterGrass, they are included in OptiFine.
Install OptiFine without MCPatcher HD features for best performance.
If you absolutely want MCPatcher:: For HD Textures or RandomMobs install OptiFine without the "aaw.class" (the mipmaps and fog distance will not be active). For HD fonts install without the "nl.class". For BetterGrass install without "vl.class".
If you need DynamicLights (ModLoader edition): Install OptiFine AFTER DynamicLights.
Compatible with: ModLoader, Forge, SinglePlayerCommands, TooManyItems, PlasticCraft, CJB's Modpack, Zan's Minimap, Rei's Minimap, DynamicLights, GLSL Shaders 2, LittleBlocks and many other.
Not compatible with: CCTV, The Aether.

Open this spoiler if you already used MCPatcher!

Follow these steps to prevent a possible "Black Screen" problem when installing OptiFine:
Temporarily revert back to the Default Texture Pack.
Uninstall the HD Textures, HD Fonts, and Better Grass mods from the MCPatcher. These functions are included in OptiFine.
Set Graphics to Fancy
Install OptiFine and test with the Default Texture Pack to make sure everything is working.
Select your previous texture pack and graphics settings
Run Minecraft and enjoy

:::Screenshots:::