This mod adds support for HD textures and a lot of options for better looks and performance. Doubling the FPS is common.
Features:
Editions:
Installation:
For 1.6 and up
Installation for Minecraft 1.6.2
A. Easy
- Use the official launcher to download and start once Minecraft 1.6.2.
- Start Magic Launcher
- Click “Setup”
- Select Environment “1.6.2″
- Click “Add” -> select the OptiFine ZIP file
- Click “OK”
- Login and play
B. Not so easy
- Use the official launcher to download and start once Minecraft 1.6.2.
- Go to the minecraft base folder (the official launchers shows it when you click “Edit Profile” as “Game Directory”)
- Go in subfolder “Versions”
- Rename the folder “1.6.2″ to “1.6.2_OptiFine”
- Go in the subfolder “1.6.2_OptiFine”
- Rename “1.6.2.jar” to “1.6.2_OptiFine.jar”
- Rename “1.6.2.json” to “1.6.2_OptiFine.json”
- Open the file “1.6.2_OptiFine.json” with a text editor and replace “id”:”1.6.2″ with “id”:”1.6.2_OptiFine” and save the file
- Copy the files from the OptiFine ZIP file in “1.6.2_OptiFine.jar” as usual (you can use the 1.5.2 instructions for this) and remove the META-INF folder from “1.6.2_OptiFine.jar”.
- Start the official launcher
- Click “Edit Profile”
- Select “Use version:” -> “release 1.6.2_OptiFine”
- Click “Save Profile”
- Click “Play” or “Login” to start the game
Installation for Minecraft 1.6.2 with Forge
A. Easy
- Use the official launcher to download and start once Minecraft 1.6.2.
- Use the Forge installer to install Minecraft Forge
- Use the official launcher to start once Minecraft with the Forge profile.
- Start Magic Launcher
- Click “Setup”
- Select Environment “Forge9.10.X.Y”
- Click “Add” -> select the OptiFine ZIP file
- Click “Advanced”
- In the field “Parameters” add “-Dfml.ignorePatchDiscrepancies=true”
- Click “OK”
- Login and play
B. Not so easy
- Use the official launcher to download and start once Minecraft 1.6.2.
- Use the Forge installer to install Minecraft Forge
- Go to the minecraft base folder (the official launchers shows it when you click “Edit Profile” as “Game Directory”)
- Go in subfolder “Versions”
- Go in subfolder “Forge9.10.X.Y”
- Copy the files from the OptiFine ZIP file to “Forge9.10.X.Y.jar” as usual (you can use the 1.5.2 instructions for this) and remove the META-INF folder from “Forge9.10.X.Y.jar”.
- Start the official launcher
- Select profile “Forge”
- Click “Edit Profile”
- Select the checkbox “JVM Options” and in the field next to it add “-Dfml.ignorePatchDiscrepancies=true”
- Click “Save Profile”
- Click “Play” or “Login” to start the game
For Minecraft 1.5 and down

OptiFine HD B1 Ultra for Minecraft 1.6.2
http://www.dl.9minecraft.net/index.php?act=dl&id=1373787641
http://www.dl2.9minecraft.net/index.php?act=dl&id=1373787216
http://www.dl3.9minecraft.net/index.php?act=dl&id=1373762741
http://www.dl4.9minecraft.net/index.php?act=dl&id=1373762468
OptiFine HD B1 Standard for Minecraft 1.6.2
http://www.dl.9minecraft.net/index.php?act=dl&id=1373787586
http://www.dl3.9minecraft.net/index.php?act=dl&id=1373762685
http://www.dl2.9minecraft.net/index.php?act=dl&id=1373787172
http://www.dl4.9minecraft.net/index.php?act=dl&id=1373762419
OptiFine HD D2 Light for Minecraft 1.5.2
http://www.dl.9minecraft.net/index.php?act=dl&id=1367562991
http://www.dl2.9minecraft.net/index.php?act=dl&id=1367562657
http://www.dl3.9minecraft.net/index.php?act=dl&id=1367538126
http://www.dl5.9minecraft.net/index.php?act=dl&id=1367563381
Older version:
Credits: sp614x