Sonic Ether’s Unbelievable Shaders Mod is a mod that can turn your potato device into French fries. what I’m trying to say is that it requires a decent PC with good graphics card, otherwise… well, French fries. But say, this mod is a seriously awesome shaders pack that might make you never wanna uninstall it ever again.
The mod adds 3D lighting and visual effects to the game, such as higher water quality, realistic light and shadows. The world will remain as blocky as it can be, but it feels a hundred times more gorgeous. Better yet, it (as well as other shader mods) upgrades the quality directly, unlike resource packs.
(Well, that’s about it. Come on, you just have to install it and experience for yourself. Kind reminder: OptiFine, MCPatcher or other mod managers recommended, in order to avoid this mod conflicting with others. Kind reminder #2: You’ll need GLSL Shaders as well, so that you’ll have custom shaders in the very first place.)
HOW TO INSTALL THE MOD:
1. Download and install GLSL Shaders mod here.
2. Download SEUS using one of the links below.
3. Copy + Paste the .zip file into .minecraft/shaderpacks folder.
4. Open the game go to Options/Shaders. Pick your fav.
Source: sonicether | Minecraft Forum