Orrery Terrain · module

OrreryTerrainPCG

A runtime module: in the editor and in packaged games. 3 public headers.

Build.cs: PublicDependencyModuleNames.Add("OrreryTerrainPCG");
Type: Runtime

OrreryTerrainPCGData.h

The terrain as a UPCGSurfaceData that samples the ground through one SampleGround call per batch, with height, slope, ground class, holes, precision and one attribute per paint layer.

#include "OrreryTerrainPCGData.h"

EOrreryTerrainPCGSurface enum
Which ground a terrain surface data reads.
EOrreryTerrainPCGAccuracy enum
How exact a sample must be.
FOrreryTerrainPCGAttributes struct
Which attributes the points carry (the Z, rotation and density are always written).
FOrreryTerrainPCGParams struct
How a terrain surface data samples.
UOrreryTerrainPCGData class
The terrain as PCG surface data (Tier 3).

OrreryTerrainPCGRefresh.h

Experimental

The opt-in re-run on edit: UOrreryTerrainPCGRefreshComponent on the actor that owns the PCG components, and UOrreryTerrainPCGSubsystem, which reads the ground journal and re-runs the components an edit reached.

#include "OrreryTerrainPCGRefresh.h"

EOrreryTerrainPCGRefreshMode enum
When a PCG component re-runs over ground that changed.
EOrreryTerrainPCGRefreshKind enum
How the subsystem re-ran one PCG component.
UOrreryTerrainPCGRefreshComponent class
Opt-in: re-run the PCG components on this actor when the ground under them changes (Tier 3).
UOrreryTerrainPCGSubsystem class
The listener behind UOrreryTerrainPCGRefreshComponent: one per world, game thread.

OrreryTerrainPCGSettings.h

Experimental

The PCG node Get Orrery Terrain Data: outputs the world's terrain as one surface data over the component's bounds.

#include "OrreryTerrainPCGSettings.h"

UPCGGetOrreryTerrainDataSettings class
Get Orrery Terrain Data: outputs the world's terrain as one surface data over the component's bounds.
FPCGGetOrreryTerrainDataElement class
Runs on the game thread; not cached, because the data's own CRC carries the edit revision.