How to use

First, you need to craft a Minifying Brush like this:

Then just hold the brush, put the block you want to place in your offhand and start building!

Changing block states

Some blocks, such as stairs and fences, have certain block states that define their appearance. When placing these blocks, they will always come with their default states.

To change them, while crouching and holding the brush, left-click on the block to activate the editing mode. Then, not crouching, left-click to cycle through their properties, and right-click to change the value of the selected property. Remember to deactivate it when you're done, by doing the same as to activate it.

Doing this for several blocks that need the same states is quite tedious. To make it easier, you can, with the block in edit mode, crouch and right-click to copy the state of that block to the brush. To paste, just crouch and right-click another block that you want to have the state you copied (you don't need to crouch if you don't have any blocks in your offhand).

Limitations

• The collision boxes of the miniblocks can be a bit buggy.
• Although the resource pack is optional, you will see some shulkers for a few seconds when placing miniblocks and inside blocks with transparency if you don't use it. But if you use it, all the red shulker boxes will become invisible. There is an alternate texture in assets/minecraft/textures/entity/shulker that will bring back red shulker boxes, with the side-effect of seeing red shulkers for a few seconds when placing miniblocks.