Actually 3D Furnaces

the background was captured in-game using the OrthoCamera mod

it's hollow, although, you need to move around it to see it well

it's hollow

there's your precious steak cooking in there!

in the top part of the furnace, there is actually 3D stuff smelting!

there's 3D wood inside!

it's actually hollow, though it's not really visible on the image. if you move around, you'll be actually able to see the holowness :D

it's hollow!