Has the definition of voxels changed recently? As far as I know voxels are pixels in 3D space. Minecraft is just a low poly engine based on marching cubes.

Minecraft is just polygons sure, but it has a "voxely" look, that's what I was getting at.

If you want to use rasterization part of your GPU, you're going to have to eventually convert the voxel data into triangles.

I think voxel has grown to have two meanings. One is as you describe, another is systems like Minecraft.

As an example, a more modern and higher resolution implementation of this style can be seen in "Teardown"

I'm also thinking Novalogic games and Voxlap: http://advsys.net/ken/voxlap.htm

If you're familiar with pixels, you might be familiar with "pixel art", even though you every image on a screen has pixels

Huh? What about it uses marching cubes?

Minecraft is just pixels in space. The world is built with a sort of very low resolution voxels. Yes, the 1m x 1m blocks that make up everything are voxels, they only have position (discrete, aligned to the 3D voxel grid) and "colour" (the type/material), and don't have dimensions nor rotation. That is prety much the textbook definition of a voxel. The fact that when rendered they are given texture is a rendering detail that doesn't erase the fact they are voxels.