GLSL Ultra makes the world in Minecraft feel more realistic and alive. Plants, water and leaves all have a waving effect and the shadows are also heavily improved and those are the two primary causes for the realistic looking graphics. The sky has also got a whole new appearance as it shifts during all times of the day.
If you have spend time playing Minecraft on PC, then you know, or perhaps have heard of the Shaders Pack, it is one of the most popular Shaders Pack that has ever been created. Adding the GLSL Ultra to your game is obviously no-brainer.
All credit goes to Gabriel Paixão