Pixels and voxels are just coordinates in 2d and 3d space. They can also contain meta information, like color and transparency. To represent pixels or voxels

Pixels and voxels are just coordinates in 2d and 3d space. They can also contain meta information, like color and transparency. To represent pixels or voxels on a screen you need to to render and interpolate them. Because, if you have an image of 4 pixels that you would like to show on a screen with 1080 leds, you need to interpolate the meta data between those pixels.