1.16 How to apply textures to the faces of blocks individually

[Zemelua]

I'm looking for a way to texture each side of a block individually like CTM, but I don't know exactly how Minecraft does that. I thought about using blockstate normally, but I don't want to have to prepare a huge number of models that are too complicated.

[MFMods]

find furnace.json in the treeview on the side of your ide (/assets/minecraft/models/block/furnace.json). start there.

[Zemelua]

I'm sorry. I didn't have enough words. I know how to assign textures to models as usual, but depending on the block state, for example, if you want to switch 10 individual textures to each face, use blockstate / block.json to prepare 10 6th power models. I can't do it. Therefore, I want to switch the texture of each surface one by one according to the state of north_type, south_type, ....

[Draco18s]

Option A:
submodels

Option B:
TileEntity renderer