Scenes · Study 089
Balloon Valley
Striped hot air balloons drift over layered hills at dawn. Hover near one to fire its burner and send it climbing.
What you're looking at
Four ridgelines are drawn from the same noise function at different scales, each paler and slower than the one in front, which gives the hazy depth of early morning. The balloons drift sideways together and bob on their own slow cycles. When the pointer comes close, the burner lights and the balloon gains height for a moment.
The idea behind it
A hot air balloon steers by altitude alone. Wind direction usually changes with height, so pilots climb or descend to find a layer of air going the way they want. Dawn flights are preferred because the air is calm and cool, which gives the hot envelope the most lift for the least fuel.
Try this
Move the pointer close to a balloon to light its burner and make it rise.
