TerrainData

class in UnityEngine

Inherits from:Object

Implemented in:UnityEngine.TerrainModule

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Description

The TerrainData class stores heightmaps, detail mesh positions, tree instances, and terrain texture alpha maps.

The Terrain component links to the terrain data and renders it.

Static Properties

AlphamapTextureName	The name for the Terrain alpha map textures.
HolesTextureName	The name for the Terrain holes Texture.

Properties

alphamapHeight	Height of the alpha map. (Read only.)
alphamapLayers	Number of alpha map layers.
alphamapResolution	The size of the alpha map in texels for either the width or the height.
alphamapTextureCount	Returns the number of alphamap textures.
alphamapTextures	Alpha map textures used by the Terrain. Used by Terrain Inspector for undo.
alphamapWidth	Width of the alpha map.
baseMapResolution	Resolution of the base map used for rendering far patches on the terrain.
bounds	The local bounding box of the TerrainData object.
detailHeight	The resolution of the detail data stored in TerrainData.
detailPatchCount	The number of patches along a terrain tile edge. This is squared to make a grid of patches.
detailPrototypes	Contains the detail texture/meshes that the Terrain has.
detailResolution	Detail Resolution of the TerrainData.
detailResolutionPerPatch	Detail Resolution of each patch. A larger value will decrease the number of batches used by detail objects.
detailWidth	The resolution of the detail data stored in TerrainData.
enableHolesTextureCompression	Enable the Terrain holes Texture compression.
heightmapResolution	The size of the heightmap in texels for either the width or the height.
heightmapScale	Returns a Vector3 where the x and z components are the size of each heightmap sample (i.e. the space between two neighboring heightmap samples), and the y component is the entire Terrain's height range in world space.
heightmapTexture	Returns the heightmap texture.
holesResolution	Returns the Terrain holes resolution for both the data and the Texture.
holesTexture	Returns the Terrain holes Texture.
size	The total size in world units of the terrain.
terrainLayers	Retrieves the terrain layers used by the current terrain.
treeInstanceCount	Returns the number of tree instances.
treeInstances	Contains the current trees placed in the terrain.
treePrototypes	The list of tree prototypes available in the inspector.
wavingGrassAmount	Amount of waving grass in the terrain.
wavingGrassSpeed	Speed of the waving grass.
wavingGrassStrength	Strength of the waving grass in the terrain.
wavingGrassTint	Color of the waving grass that the terrain has.

Public Methods

ComputeDetailInstanceTransforms	This function computes and returns an array of detail object transforms for the specified patch and the specified prototype. You can use this function to retrieve the exact same transform data the Unity engine uses for detail rendering.
CopyActiveRenderTextureToHeightmap	Copies the specified part of the active RenderTexture to the Terrain heightmap texture.
CopyActiveRenderTextureToTexture	Copies the specified part of the active RenderTexture to the Terrain texture.
DirtyHeightmapRegion	Marks the specified part of the heightmap as dirty.
DirtyTextureRegion	Marks the specified part of the Terrain texture as dirty.
GetAlphamaps	Returns the alpha map at a position x, y given a width and height.
GetAlphamapTexture	Returns the alphamap texture at the specified index.
GetClampedDetailPatches	Returns an array of detail patches, which are each identified by X-Z coordinates. Detail objects in the patches are clamped to the maximum count.
GetDetailLayer	Returns a 2D array of the detail object density (i.e. the number of detail objects for this layer) in the specific location.
GetHeight	Gets the world space height of the Terrain at a certain point x,y without adding the Terrain's world position y.
GetHeights	Gets an array of heightmap samples.
GetHoles	Gets an array of Terrain holes samples.
GetInterpolatedHeight	Gets an interpolated height at a point x,y. The x and y coordinates are clamped to [0, 1].
GetInterpolatedHeights	Gets an array of terrain height values using the normalized x,y coordinates.
GetInterpolatedNormal	Get an interpolated normal at a given location.
GetMaximumHeightError	Returns an array of tesselation maximum height error values per renderable terrain patch. The returned array can be modified and passed to OverrideMaximumHeightError.
GetPatchMinMaxHeights	Returns an array of min max height values for all the renderable patches in a terrain. The returned array can be modified and then passed to OverrideMinMaxPatchHeights.
GetSteepness	Gets the gradient of the terrain at point (x,y).
GetSupportedLayers	Returns an array of all supported detail layer indices in the area.
GetTreeInstance	Gets the tree instance at the specified index. It is used as a faster version of treeInstances[index] as this function doesn't create the entire tree instances array.
IsHole	Gets whether a certain point at x,y is a hole.
OverrideMaximumHeightError	Override the maximum tessellation height error with user provided values. Note that the overriden values get reset when the terrain resolution is changed and stays unchanged when the terrain heightmap is painted or changed via script.
OverrideMinMaxPatchHeights	Override the minimum and maximum patch heights for every renderable terrain patch. Note that the overriden values get reset when the terrain resolution is changed and stays unchanged when the terrain heightmap is painted or changed via script.
RefreshPrototypes	Reloads all the values of the available prototypes (ie, detail mesh assets) in the TerrainData Object.
SetAlphamaps	Assign all splat values in the given map area.
SetBaseMapDirty	Marks the terrain data as dirty to trigger an update of the terrain basemap texture.
SetDetailLayer	Sets the detail layer density map.
SetDetailResolution	Sets the resolution of the detail map.
SetHeights	Sets an array of heightmap samples.
SetHeightsDelayLOD	Sets an array of heightmap samples.
SetHoles	Sets an array of Terrain holes samples.
SetHolesDelayLOD	Sets an array of Terrain holes samples.
SetTerrainLayersRegisterUndo	This function sets the terrainLayers property, and in addition, registers the action to the Editor's undo stack.
SetTreeInstance	Sets the tree instance with new parameters at the specified index. However, you cannot change TreeInstance.prototypeIndex and TreeInstance.position. If you change them, the method throws an ArgumentException.
SetTreeInstances	Sets the Tree Instance array, and optionally snaps Trees onto the surface of the Terrain heightmap.
SyncHeightmap	Performs synchronization queued by previous calls to CopyActiveRenderTextureToHeightmap and DirtyHeightmapRegion, which makes the height data and LOD data used for tessellation up to date.
SyncTexture	Performs synchronization queued by previous calls to CopyActiveRenderTextureToTexture and DirtyTextureRegion, which makes CPU data of the Terrain textures up to date.

Inherited Members

Properties

hideFlags	Should the object be hidden, saved with the Scene or modifiable by the user?
name	The name of the object.

Public Methods

GetInstanceID	Gets the instance ID of the object.
ToString	Returns the name of the object.

Static Methods

Destroy	Removes a GameObject, component or asset.
DestroyImmediate	Destroys the object obj immediately. You are strongly recommended to use Destroy instead.
DontDestroyOnLoad	Do not destroy the target Object when loading a new Scene.
FindObjectOfType	Returns the first active loaded object of Type type.
FindObjectsOfType	Gets a list of all loaded objects of Type type.
Instantiate	Clones the object original and returns the clone.

Operators

bool	Does the object exist?
operator !=	Compares if two objects refer to a different object.
operator ==	Compares two object references to see if they refer to the same object.

Scripting API

TerrainData

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Description

Static Properties

Properties

Public Methods

Inherited Members

Properties

Public Methods

Static Methods

Operators