duane wrote:Sergey wrote:I have obvious question about mapgen and engine itself.
Why are there objects hanging in the air? Sand or gravel falls down if there is nothing (air) under it. But block of dirt or stone can hang in the air without being connected to something on the ground. Even tree can "stand" in the air. You have to fly to fell it. Why is that? This is against basic physical laws!
It takes a lot more computation to make things fall than to just leave them in place. When I made the mistake of producing unstable sand structures underground, the resulting sandslides crashed servers. Plus, some people like making floating islands.
Underground not sand but gravel falls down.