ComputeHostHash

Editor only

Hash of what an import reads from a Landscape, without reading it: the placement (transform and extent) and, in component order, the source id of every final heightmap and weightmap texture and every weightmap layer allocation.

Declaration

static uint64 ComputeHostHash(const ALandscapeProxy* Landscape, FString& OutError);

Header: #include "OrreryTerrainLandscapeImport.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

A texture's source id changes whenever its data changes, so any edit of the final heights or paint, and any move, gives a new hash. A paint edit changes it for a height-only import too.

Parameters

Name	Type	Default	Meaning
`Landscape`	`const ALandscapeProxy*`	—	The Landscape to hash; may be a proxy.
`OutError`	`FString&`	—	Why there is no hash (no Landscape info, no components); untouched on success.

Returns

The hash, or 0 with OutError set.

Note.

Game thread, editor only.