MalisisBlocks
This mod introduces a unique system of mixed blocks that combine two different materials into a single structure. The feature lies in the fact that one side of such block completely matches the first material, while the opposite side corresponds to the second, creating a smooth transition between them.
Another interesting function is vanishing frames. These special constructions can disguise themselves as almost any other block in the game, becoming practically indistinguishable from the original. However, when receiving a redstone signal, they instantly become invisible, opening up new possibilities for creating hidden mechanisms and secret passages.
Important note: the mod requires installation of MalisisCore.