SolveFalloffContour

Normalised distance at which the brush strength factor falls to Level.

Declaration

inline bool SolveFalloffContour(EOrreryTerrainFalloff Falloff, double Level, double Start, double& OutT);

Header: #include "Tools/OrreryTerrainBrushFalloff.h"
Module: PublicDependencyModuleNames.Add("OrreryTerrain"); in your module’s Build.cs.
Stability: Stable: changes within a major version only add.

Inverts EvaluateFalloff (monotone, so bisection to 1e-12).

Name	Type	Default	Meaning
`Falloff`	`EOrreryTerrainFalloff`	—	The curve.
`Level`	`double`	—	Strength factor, 0 to 1 exclusive.
`Start`	`double`	—	Falloff start, as EvaluateFalloff.
`OutT`	`double&`	—	Distance over the radius, between Start and 1.

false when Level is outside (0, 1) or the curve is Constant (no contour inside the brush); OutT untouched.