Orrery Terrain · OrreryTerrainEditor module · struct

FOrreryTerrainStampGhost

Editor only

The ghost of a height stamp before it is placed: EvaluateStampPreview's Side × Side grid of the stamp's result over the ground sampled at StampPreviewPoint, in world cm.

Declaration

struct FOrreryTerrainStampGhost

Header: #include "Tools/OrreryTerrainMaskPreview.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.

Description

Build samples the ground (GetGroundHeight, the edited surface) at every grid point, runs the Tier 1 preview, which is the kernel's per-post Stamp code, and keeps the result: a point on an edit post previews that post exactly.

Note.

Game thread, editor only. Tier 3.

Functions

Build
Evaluate the ghost of Stamp over Terrain.
IsInside
Whether point (I, J) is inside.
CountInside
Points inside: the stamp's footprint on the grid.

Properties

Name	Type	Default	Meaning
`Side`	`int32`	`0`	Points per side; 0 before a Build succeeded.
`Points_cm`	`TArray<FVector>`	—	Side × Side world points, row-major (J the row), Z the stamp's result.
`Inside`	`TArray<uint8>`	—	1 where the stamp writes and the terrain has ground, else 0.
`bLoaded`	`bool`	`false`	Every sample on the terrain answered Exact.
`BuildMs`	`double`	`0.0`	Wall time of the last Build: sampling and evaluation.