@Dr.solid
– for shaders, it depends on what kind of machine you are running as it’s Very intensive. So a half decent machine with a decent gfx card will be a bonus. If you’re are running a laptop without a dedicated GFX (this excludes the onboard intel/amd one then you have no hope.)
So for shaders:
-Insatll Optifine – this needs to relate to your MC client
-Install Shaders mod core – this needs to relate to your MC client
– choose and download your shader
-Open up mc client, change your profile settings , there should be a list of versions, you need the one that says Optifine & shaders mod
-Now test it on single player. you may need to change teh video settings to make it run smoother.
that’s a very brief way of doing it. There’s plenty of tuts and vids online so good check them out.