Class Foliage

Represents a foliage actor that contains a set of instanced meshes.

System.Object
Object
SceneObject
Actor
Foliage
Namespace: FlaxEngine
Assembly: FlaxEngine.CSharp.dll
Syntax
[Unmanaged]
public sealed class Foliage : Actor, ISerializable

Constructors

Foliage()

Initializes a new instance of the Foliage.

Declaration
public Foliage()

Properties

FoliageTypesCount

Gets the total amount of the types of foliage.

Declaration
[Unmanaged]
public int FoliageTypesCount { get; }
Property Value
System.Int32

GlobalDensityScale

Gets or sets the global density scale for all foliage instances. The default value is 1. Use values from range 0-1. Lower values decrease amount of foliage instances in-game. Use it to tweak game performance for slower devices.

Declaration
[Unmanaged]
public static float GlobalDensityScale { get; set; }
Property Value
System.Single

InstancesCount

Gets the total amount of the instanced of foliage.

Declaration
[Unmanaged]
public int InstancesCount { get; }
Property Value
System.Int32

Methods

AddFoliageType(Model)

Adds the type of the foliage.

Declaration
[Unmanaged]
public void AddFoliageType(Model model)
Parameters
Model model

The model to assign. It cannot be null nor already used by the other instance type (it must be unique within the given foliage actor).

AddInstance(ref FoliageInstance)

Adds the new foliage instance. Ensure to always call RebuildClusters() after editing foliage to sync cached data (call it once after editing one or more instances).

Declaration
[Unmanaged]
public void AddInstance(ref FoliageInstance instance)
Parameters
FoliageInstance instance

The instance.
Remarks

Input instance bounds, instance random and world matrix are ignored (recalculated).

GetFoliageType(Int32)

Gets the foliage type.

Declaration
[Unmanaged]
public FoliageType GetFoliageType(int index)
Parameters
System.Int32 index

The zero-based index of the foliage type.
Returns
FoliageType

The foliage type.

GetFoliageTypeInstancesCount(Int32)

Gets the total amount of the instanced that use the given foliage type.

Declaration
[Unmanaged]
public int GetFoliageTypeInstancesCount(int index)
Parameters
System.Int32 index

The zero-based index of the foliage type.
Returns
System.Int32

The foliage type instances count.

GetInstance(Int32)

Gets the foliage instance by index.

Declaration
[Unmanaged]
public FoliageInstance GetInstance(int index)
Parameters
System.Int32 index

The zero-based index of the foliage instance.
Returns
FoliageInstance

The foliage instance data.

Intersects(ref Ray, out Single, out Vector3, out Int32)

Determines if there is an intersection between the current object or any it's child and a ray.

Declaration
[Unmanaged]
public bool Intersects(ref Ray ray, out float distance, out Vector3 normal, out int instanceIndex)
Parameters
Ray ray

The ray to test.
System.Single distance

When the method completes, contains the distance of the intersection (if any valid).
Vector3 normal

When the method completes, contains the intersection surface normal vector (if any valid).
System.Int32 instanceIndex

When the method completes, contains zero-based index of the foliage instance that is the closest to the ray.
Returns
System.Boolean

True whether the two objects intersected, otherwise false.

RebuildClusters()

Rebuilds the foliage clusters used as internal acceleration structures (quad tree).

Declaration
[Unmanaged]
public void RebuildClusters()

RemoveFoliageType(Int32)

Removes the foliage instance type and all foliage instances using this type.

Declaration
[Unmanaged]
public void RemoveFoliageType(int index)
Parameters
System.Int32 index

The zero-based index of the foliage instance type.

RemoveInstance(Int32)

Removes the foliage instance. Ensure to always call RebuildClusters() after editing foliage to sync cached data (call it once after editing one or more instances).

Declaration
[Unmanaged]
public void RemoveInstance(int index)
Parameters
System.Int32 index

The zero-based index of the instance to remove.

SetInstanceTransform(Int32, ref Transform)

Sets the foliage instance transformation. Ensure to always call RebuildClusters() after editing foliage to sync cached data (call it once after editing one or more instances).

Declaration
[Unmanaged]
public void SetInstanceTransform(int index, ref Transform value)
Parameters
System.Int32 index

The zero-based index of the foliage instance.
Transform value

The value.

UpdateCullDistance()

Updates the cull distance for all foliage instances and for created clusters.

Declaration
[Unmanaged]
public void UpdateCullDistance()

Extension Methods

See Also