Calling Minecraft "voxel" is sure to introduce confusion. The representation of the map is simply a regular 3D grid of block IDs. When we use the exact same type of regular grid to represent 2D maps, we do not call the grid cells "pixels", so I don't think it's very informative to call these "voxels".
Minecraft is also not a voxel renderer. Voxel renderers typically work by casting rays against the grid. Minecraft draws the blocks with rasterized triangles, using a hardware-accelerated 3D API (LWJGL), just like almost every other 3D game.
In other words, there is practically no interesting overlap between what NovaLogic was doing, and what Minecraft does.
Minecraft is also not a voxel renderer. Voxel renderers typically work by casting rays against the grid. Minecraft draws the blocks with rasterized triangles, using a hardware-accelerated 3D API (LWJGL), just like almost every other 3D game.
In other words, there is practically no interesting overlap between what NovaLogic was doing, and what Minecraft does.