Immersion is a resource pack that aims to enhance Minecraft's graphics, by expanding upon and interpreting the classic Minecraft textures in a higher resolution. Currently, this only includes 32x32 textures, and focuses primarily on blocks.
Ultimately, the pack's name is it's description. The pack tries to upscale the game's graphics, much like the popular pack, Faithful, but unlike Faithful, Immersion focuses on increasing the realism of the textures, providing a smoother and more lifelike aesthetic.
For more information, and for downloads, follow the link below: