OCG Setting Properties

In this step, you will configure the Procedural Content Generation (PCG) settings. The PCG settings provide various options related to how the level is generated. Select the PCG Settings tab in the OCG window and adjust the necessary settings.

1. Biome Settings

The order of Layers in the Landscape Material’s Layer Blend must match the order of Biomes for PCG to spawn meshes in the correct areas. For example, if the layer order in the Landscape Material is Grass, Forest, Mountain, the Biome order must also be the same: Grass, Forest, Mountain.

Property Name	Description
Biome Name	The name of the biome. This is used to identify the biome in the system.
Temperature	The temperature of the biome, which can affect the types of vegetation and terrain features generated.
Humidity	The humidity level of the biome, influencing water features and vegetation density.
Weight	The weight of the biome in the overall generation process. Higher weights increase the likelihood of this biome being selected.
Mountain Ratio	The ratio of mountains in the biome, affecting the terrain’s elevation and features.

2. Hierarchy Data Settings

The indices in the Hierarchy Data Settings are applied sequentially. Areas where points have already been generated by a higher-priority index are excluded from the regions where subsequent indices can generate points (this does not apply to entries within the same biome).

Basic Settings

Property Name	Description
Biome Name	The name of the biome. This is used to identify the biome in the system.
Selected Landscape Layer Name	The name of the selected Landscape Layer. The biome will be applied to this layer. If it shows None, the Biome Name may be incorrect, or the Landscape Material has not been set.
Seed	Sets the random seed. This value determines the randomness when the biome’s meshes are spawned. Using the same seed will produce the same results.
Blending Ratio	The blending ratio of the biome. This value determines how smoothly the boundary between biomes is blended. A value of 0.0 results in a sharp boundary, while 1.0 is fully blended.
Points Per Square Meter	Determines the density of points for spawning meshes in the biome. This value controls how finely the biome’s meshes are spawned. For example, a value of 10 generates 10 points per square meter.
Looseness	Determines the looseness of the points where the biome’s meshes are spawned.
Point Extents	Determines the size of the area where meshes will be spawned. This value affects the calculation of the number of points and defines the spawning area size. For example, 100 means meshes will spawn in a 100x100 square meter area.
Point Steepness	Determines how far apart points will be from each other when spawned. A higher value results in meshes being spawned further apart.
Slope Limits	Determines the range of slopes on which meshes can be spawned. For example, if Min Angle is 0° and Max Angle is 45°, meshes will only spawn on slopes between 0° and 45°.
Transform Point	Determines the transform of the point. This value controls the position, rotation, and scale of the mesh when it is spawned.
Pruning Overlapped Points	Determines whether to remove overlapped points.
Meshes	Selects the meshes to spawn. This determines which meshes will be used when the biome’s meshes are spawned. You can select multiple meshes, and one will be chosen randomly.
Point Debug Color	Sets the debug color for the points. This value determines the debug color when points are spawned, allowing you to visually confirm their locations.

Optimization Settings

Property Name	Description
WPO Disable Distance	Determines the distance at which to disable World Position Offset (WPO). Meshes beyond this distance will not have WPO applied. For example, a value of 1000 means WPO is disabled for meshes more than 1000 meters away.
Start Cull Distance	Sets the distance at which culling begins.
End Cull Distance	Sets the distance at which culling ends. This determines how far away a spawned mesh must be before it is culled (not rendered). For example, with a Start Cull Distance of 1000 and an End Cull Distance of 2000, meshes will become invisible beyond 1000 meters.
Affect Distance Field Lighting	Determines whether the mesh affects Distance Field Lighting. Enabling this allows the mesh to contribute to Distance Field Lighting. This can impact performance, so it is recommended to enable it only when necessary.
Execute on GPU	Determines whether to execute the generation on the GPU. If enabled, meshes will be generated on the GPU.