Supported blocks
The effect covers more than five hundred blocks, including ordinary full blocks, slabs, stairs, furnaces, pistons and several special shapes such as crafting tables, honey and slime blocks. It follows the supported block's shape and orientation rather than treating everything as a cube.
Building normally
The visual effect disappears after a brief moment, leaving the ordinary block in place. It works during survival building as well as creative construction. The current 1.7.20 release improves rapid vertical placement, making it easier to keep stacking blocks while the animation plays.
Controls
Activate both packs to enable the effect. With command access, /scriptevent sp:off turns the animation off and /scriptevent sp:on turns it back on. Experimental switches are not required. The package declares Minecraft 1.21.30 as its minimum version; the author does not list an exact newer release tested in game.
