Begin

Editor only

Begin stamping Stamp on Terrain and try at once.

Declaration

EOrreryTerrainStampHoldState Begin(UOrreryTerrainSubsystem& Terrain, const FOrreryTerrainBrushBP& Stamp, const FText& Label);

Header: #include "Tools/OrreryTerrainStampHold.h"
Module: PublicDependencyModuleNames.Add("OrreryTerrainEditor"); in an editor module’s Build.cs: an editor module, not in packaged games.
Stability: Stable: changes within a major version only add.
Thread: Game thread, editor only. (the rule of FOrreryTerrainStampHold)

A stamp still pending is cancelled first.

Name	Type	Default	Meaning
`Terrain`	`UOrreryTerrainSubsystem&`	—	The terrain to stamp; the hold keeps a weak reference and its serial.
`Stamp`	`const FOrreryTerrainBrushBP&`	—	A Stamp brush whose mask the terrain holds (RegisterBrush), world cm and degrees.
`Label`	`const FText&`	—	The undo entry's name.

The state after the first try.