Quote from karyonix
Shaders Mod v2.3.1 beta for Minecraft 1.7.2
Compatible with optifine.
It still does not support normalmap and specularmap. (not implemented)
Install jar file in mods folder in game directory.
This mod is not shown in Forge/FML mods list screen. Don't worry about it.
my loading screen keeps flashing black and normal, i can hear sounds but thats it keeps flashing