Oh...oh my...
It seems we've been graced with the presence of a new shaderpack! Steve's Legacy was made using Sonic Ether's Unbelievable Shaders, shaderpack v10.1, but now he's released v11.0, which is amazing. I attempted to turn on Parallax Occlusion Mapping and Physically Based Rendering (3D textures) with the old one, but could never make it work. Until now. You can expect to see some of this in upcoming projects.
Shaders:
http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1280299-sonic-ethers-unbelievable-shaders-v11-0
Resourcepack: CGO HD Texture pack
http://www.minecraftforum.net/forums/mapping-and-modding/resource-packs/1229968-256x-128x-64x-cyberghostdes-hd-texture-pack-1-9-2
http://www.minecraftforum.net/forums/mapping-and-modding/resource-packs/2690082-resource-pack-shader-support-parallax-pom-bump