Fill
The Fill tool flood-fills a contiguous air region with the active block palette. Click a block face to preview the fill; click again to confirm. The flood follows air connectivity from the clicked face outward, bounded by a configurable limit and direction.
Controls
| Input |
Action |
| RMB (first click) |
Preview flood fill from cursor position |
| RMB (second click) |
Confirm and place the previewed blocks |
| LMB |
Cancel the current preview |
Parameters
| Parameter |
Description |
| Limit |
Maximum number of air blocks to fill (default 100,000) |
| Direction |
Down — flood propagates downward; Up — propagates upward |
| Include corners |
When enabled, diagonally connected air blocks are included |
Tips
- Use Direction
Down to fill caves and enclosed spaces from the top.
- Keep the limit low when filling open areas to avoid unexpectedly large fills.
- The fill only enters air blocks; solid blocks act as walls.
See also
- Shape — place a solid geometric volume instead of flood-filling