Interpolation factors for one terrace step, 0…TERRACE_STEPS: h
across the ground plane and v up. They differ, and that is the whole
effect — v only advances on every other step, which is what turns a ramp
into a flight of treads and risers.
Exported alongside TERRACE_STEPS so a builder meeting the open end
of a terraced bridge can trace the same staircase instead of cutting a
straight line across it. The profile is symmetric, so it does not matter
which of the two cells you walk from.
Interpolation factors for one terrace step, 0…TERRACE_STEPS:
hacross the ground plane andvup. They differ, and that is the whole effect —vonly advances on every other step, which is what turns a ramp into a flight of treads and risers.Exported alongside TERRACE_STEPS so a builder meeting the open end of a terraced bridge can trace the same staircase instead of cutting a straight line across it. The profile is symmetric, so it does not matter which of the two cells you walk from.