public static void MakeSharedChildrenMembers(SECTR_Sector sector, List<SECTR_Member.Child> sharedChildren, string undoName)
{
int numSharedChildren = sharedChildren.Count;
for(int childIndex = 0; childIndex < numSharedChildren; ++childIndex)
{
SECTR_Member.Child child = sharedChildren[childIndex];
bool hasMemberParent = false;
Transform parent = child.gameObject.transform;
while(parent != null)
{
if(parent.gameObject != sector.gameObject && parent.GetComponent<SECTR_Member>())
{
hasMemberParent = true;
break;
}
else
{
parent = parent.parent;
}
}
if(!hasMemberParent)
{
SECTR_Member newMember = child.gameObject.AddComponent<SECTR_Member>();
SECTR_Undo.Created(newMember, undoName);
}
}
sector.ForceUpdate(true);
}
public static void MakeSharedChildrenMembers(SECTR_Sector sector, List <SECTR_Member.Child> sharedChildren, string undoName)
{
int numSharedChildren = sharedChildren.Count;
for (int childIndex = 0; childIndex < numSharedChildren; ++childIndex)
{
SECTR_Member.Child child = sharedChildren[childIndex];
bool hasMemberParent = false;
Transform parent = child.gameObject.transform;
while (parent != null)
{
if (parent.gameObject != sector.gameObject && parent.GetComponent <SECTR_Member>())
{
hasMemberParent = true;
break;
}
else
{
parent = parent.parent;
}
}
if (!hasMemberParent)
{
SECTR_Member newMember = child.gameObject.AddComponent <SECTR_Member>();
SECTR_Undo.Created(newMember, undoName);
}
}
sector.ForceUpdate(true);
}
/// Re-adds the data from the specified Sector to the current scene. Safe to call from command line.
/// <param name="sector">The Sector to import.</param>
/// <returns>Returns true if Sector was successfully imported, false otherwise.</returns>
public static bool ImportFromChunk(SECTR_Sector sector)
{
if (sector == null)
{
Debug.LogError("Cannot import invalid Sector.");
return(false);
}
if (!sector.Frozen)
{
Debug.Log("Skipping import of unfrozen Sector");
return(true);
}
if (!sector.gameObject.isStatic)
{
Debug.Log("Skipping import of dynamic Sector " + sector.name + ".");
return(true);
}
SECTR_Chunk chunk = sector.GetComponent <SECTR_Chunk>();
if (chunk)
{
EditorApplication.OpenSceneAdditive(chunk.NodeName);
GameObject newNode = GameObject.Find(chunk.NodeName);
if (newNode == null)
{
Debug.LogError("Exported data does not match scene. Skipping import of " + sector.name + ".");
return(false);
}
SECTR_ChunkRef chunkRef = newNode.GetComponent <SECTR_ChunkRef>();
if (chunkRef && chunkRef.RealSector)
{
newNode = chunkRef.RealSector.gameObject;
if (chunkRef.Recentered)
{
newNode.transform.parent = sector.transform;
newNode.transform.localPosition = Vector3.zero;
newNode.transform.localRotation = Quaternion.identity;
newNode.transform.localScale = Vector3.one;
}
newNode.transform.parent = null;
GameObject.DestroyImmediate(chunkRef.gameObject);
}
while (newNode.transform.childCount > 0)
{
newNode.transform.GetChild(0).parent = sector.transform;
}
// Merge lightmaps into the scene
#if !UNITY_STREAM_ENLIGHTEN
SECTR_LightmapRef newRef = newNode.GetComponent <SECTR_LightmapRef>();
if (newRef)
{
int numLightmaps = LightmapSettings.lightmaps.Length;
LightmapData[] newLightmaps = new LightmapData[numLightmaps];
for (int lightmapIndex = 0; lightmapIndex < numLightmaps; ++lightmapIndex)
{
newLightmaps[lightmapIndex] = LightmapSettings.lightmaps[lightmapIndex];
}
foreach (SECTR_LightmapRef.RefData refData in newRef.LightmapRefs)
{
if (refData.index >= 0 && refData.index < numLightmaps)
{
LightmapData newData = new LightmapData();
newData.lightmapNear = refData.NearLightmap;
newData.lightmapFar = refData.FarLightmap;
newLightmaps[refData.index] = newData;
}
}
LightmapSettings.lightmaps = newLightmaps;
#if !UNITY_4
foreach (SECTR_LightmapRef.RenderData indexData in newRef.LightmapRenderers)
{
if (indexData.renderer)
{
indexData.renderer.lightmapIndex = indexData.rendererLightmapIndex;
indexData.renderer.lightmapScaleOffset = indexData.rendererLightmapScaleOffset;
GameObjectUtility.SetStaticEditorFlags(indexData.renderer.gameObject, GameObjectUtility.GetStaticEditorFlags(indexData.renderer.gameObject) | StaticEditorFlags.BatchingStatic);
}
if (indexData.terrain)
{
indexData.terrain.lightmapIndex = indexData.terrainLightmapIndex;
}
}
#endif
GameObject.DestroyImmediate(newRef);
}
#endif
// Copy terrain component specially because the generic routine doesn't work for some reason.
Terrain terrain = newNode.GetComponent <Terrain>();
if (terrain)
{
Terrain terrainClone = sector.gameObject.AddComponent <Terrain>();
terrainClone.terrainData = terrain.terrainData;
terrainClone.basemapDistance = terrain.basemapDistance;
terrainClone.castShadows = terrain.castShadows;
terrainClone.detailObjectDensity = terrain.detailObjectDensity;
terrainClone.detailObjectDistance = terrain.detailObjectDistance;
terrainClone.heightmapMaximumLOD = terrain.heightmapMaximumLOD;
terrainClone.heightmapPixelError = terrain.heightmapPixelError;
terrainClone.lightmapIndex = terrain.lightmapIndex;
terrainClone.treeBillboardDistance = terrain.treeBillboardDistance;
terrainClone.treeCrossFadeLength = terrain.treeCrossFadeLength;
terrainClone.treeDistance = terrain.treeDistance;
terrainClone.treeMaximumFullLODCount = terrain.treeMaximumFullLODCount;
terrainClone.Flush();
}
// Destroy the placeholder Member if there is one.
// It's theoretically possible to have multiple members, so remove them all.
SECTR_Member[] oldMembers = newNode.GetComponents <SECTR_Member>();
int numOldMembers = oldMembers.Length;
for (int oldIndex = 0; oldIndex < numOldMembers; ++oldIndex)
{
GameObject.DestroyImmediate(oldMembers[oldIndex]);
}
// Copy all remaining components over
Component[] remainingComponents = newNode.GetComponents <Component>();
int numRemaining = remainingComponents.Length;
for (int componentIndex = 0; componentIndex < numRemaining; ++componentIndex)
{
Component component = remainingComponents[componentIndex];
if (component != newNode.transform && component.GetType() != typeof(Terrain))
{
Component componentClone = sector.gameObject.AddComponent(component.GetType());
EditorUtility.CopySerialized(component, componentClone);
}
}
// Enable a TerrainComposer node if there is one.
MonoBehaviour terrainNeighbors = sector.GetComponent("TerrainNeighbors") as MonoBehaviour;
if (terrainNeighbors)
{
terrainNeighbors.enabled = true;
}
GameObject.DestroyImmediate(newNode);
sector.Frozen = false;
sector.ForceUpdate(true);
chunk.enabled = false;
return(true);
}
return(false);
}
private static void _SectorizeConnected(Terrain terrain, bool createPortalGeo, bool includeStatic, bool includeDynamic, Dictionary <Terrain, Terrain> processedTerrains, List <Transform> rootTransforms, List <Bounds> rootBounds)
{
if (terrain && !processedTerrains.ContainsKey(terrain))
{
string undoString = "Sectorize Connected";
processedTerrains[terrain] = terrain;
terrain.gameObject.isStatic = true;
GameObject newSectorObject = new GameObject(terrain.name + " Sector");
newSectorObject.isStatic = true;
newSectorObject.transform.parent = terrain.transform.parent;
newSectorObject.transform.localPosition = terrain.transform.localPosition;
newSectorObject.transform.localRotation = terrain.transform.localRotation;
newSectorObject.transform.localScale = terrain.transform.localScale;
terrain.transform.parent = newSectorObject.transform;
SECTR_Sector newSector = newSectorObject.AddComponent <SECTR_Sector>();
newSector.ForceUpdate(true);
SECTR_Undo.Created(newSectorObject, undoString);
_Encapsulate(newSector, rootTransforms, rootBounds, undoString);
Component terrainNeighbors = terrain.GetComponent("TerrainNeighbors");
if (terrainNeighbors)
{
System.Type neighborsType = terrainNeighbors.GetType();
Terrain topTerrain = neighborsType.GetField("top").GetValue(terrainNeighbors) as Terrain;
if (topTerrain)
{
SECTR_Sector neighborSector = topTerrain.transform.parent ? topTerrain.transform.parent.GetComponent <SECTR_Sector>() : null;
if (neighborSector)
{
newSector.TopTerrain = neighborSector;
neighborSector.BottomTerrain = newSector;
_CreatePortal(createPortalGeo, newSector, neighborSector, newSectorObject.transform.parent, undoString);
}
_SectorizeConnected(topTerrain, createPortalGeo, includeStatic, includeDynamic, processedTerrains, rootTransforms, rootBounds);
}
Terrain bottomTerrain = neighborsType.GetField("bottom").GetValue(terrainNeighbors) as Terrain;
if (bottomTerrain)
{
SECTR_Sector neighborSector = bottomTerrain.transform.parent ? bottomTerrain.transform.parent.GetComponent <SECTR_Sector>() : null;
if (neighborSector)
{
newSector.BottomTerrain = neighborSector;
neighborSector.TopTerrain = newSector;
_CreatePortal(createPortalGeo, newSector, neighborSector, newSectorObject.transform.parent, undoString);
}
_SectorizeConnected(bottomTerrain, createPortalGeo, includeStatic, includeDynamic, processedTerrains, rootTransforms, rootBounds);
}
Terrain leftTerrain = neighborsType.GetField("left").GetValue(terrainNeighbors) as Terrain;
if (leftTerrain)
{
SECTR_Sector neighborSector = leftTerrain.transform.parent ? leftTerrain.transform.parent.GetComponent <SECTR_Sector>() : null;
if (neighborSector)
{
newSector.LeftTerrain = neighborSector;
neighborSector.RightTerrain = newSector;
_CreatePortal(createPortalGeo, newSector, neighborSector, newSectorObject.transform.parent, undoString);
}
_SectorizeConnected(leftTerrain, createPortalGeo, includeStatic, includeDynamic, processedTerrains, rootTransforms, rootBounds);
}
Terrain rightTerrain = neighborsType.GetField("right").GetValue(terrainNeighbors) as Terrain;
if (rightTerrain)
{
SECTR_Sector neighborSector = rightTerrain.transform.parent ? rightTerrain.transform.parent.GetComponent <SECTR_Sector>() : null;
if (neighborSector)
{
newSector.RightTerrain = neighborSector;
neighborSector.LeftTerrain = newSector;
_CreatePortal(createPortalGeo, newSector, neighborSector, newSectorObject.transform.parent, undoString);
}
_SectorizeConnected(rightTerrain, createPortalGeo, includeStatic, includeDynamic, processedTerrains, rootTransforms, rootBounds);
}
}
}
}
public static void SectorizeTerrain(Terrain terrain, int sectorsWidth, int sectorsLength, int sectorsHeight, bool splitTerrain, bool createPortalGeo, bool includeStatic, bool includeDynamic)
{
if (!terrain)
{
Debug.LogWarning("Cannot sectorize null terrain.");
return;
}
if (terrain.transform.root.GetComponentsInChildren <SECTR_Sector>().Length > 0)
{
Debug.LogWarning("Cannot sectorize terrain that is already part of a Sector.");
}
string undoString = "Sectorized " + terrain.name;
if (sectorsWidth == 1 && sectorsLength == 1)
{
SECTR_Sector newSector = terrain.gameObject.AddComponent <SECTR_Sector>();
SECTR_Undo.Created(newSector, undoString);
newSector.ForceUpdate(true);
return;
}
if (splitTerrain && (!Mathf.IsPowerOfTwo(sectorsWidth) || !Mathf.IsPowerOfTwo(sectorsLength)))
{
Debug.LogWarning("Splitting terrain requires power of two sectors in width and length.");
splitTerrain = false;
}
else if (splitTerrain && sectorsWidth != sectorsLength)
{
Debug.LogWarning("Splitting terrain requires same number of sectors in width and length.");
splitTerrain = false;
}
int terrainLayer = terrain.gameObject.layer;
Vector3 terrainSize = terrain.terrainData.size;
float sectorWidth = terrainSize.x / sectorsWidth;
float sectorHeight = terrainSize.y / sectorsHeight;
float sectorLength = terrainSize.z / sectorsLength;
int heightmapWidth = (terrain.terrainData.heightmapWidth / sectorsWidth);
int heightmapLength = (terrain.terrainData.heightmapHeight / sectorsLength);
int alphaWidth = terrain.terrainData.alphamapWidth / sectorsWidth;
int alphaLength = terrain.terrainData.alphamapHeight / sectorsLength;
int detailWidth = terrain.terrainData.detailWidth / sectorsWidth;
int detailLength = terrain.terrainData.detailHeight / sectorsLength;
string sceneDir = "";
string sceneName = "";
string exportFolder = splitTerrain ? SECTR_Asset.MakeExportFolder("TerrainSplits", false, out sceneDir, out sceneName) : "";
Transform baseTransform = null;
if (splitTerrain)
{
GameObject baseObject = new GameObject(terrain.name);
baseTransform = baseObject.transform;
SECTR_Undo.Created(baseObject, undoString);
}
List <Transform> rootTransforms = new List <Transform>();
List <Bounds> rootBounds = new List <Bounds>();
_GetRoots(includeStatic, includeDynamic, rootTransforms, rootBounds);
// Create Sectors
string progressTitle = "Sectorizing Terrain";
int progressCounter = 0;
EditorUtility.DisplayProgressBar(progressTitle, "Preparing", 0);
SECTR_Sector[,,] newSectors = new SECTR_Sector[sectorsWidth, sectorsLength, sectorsHeight];
Terrain[,] newTerrains = splitTerrain ? new Terrain[sectorsWidth, sectorsLength] : null;
for (int widthIndex = 0; widthIndex < sectorsWidth; ++widthIndex)
{
for (int lengthIndex = 0; lengthIndex < sectorsLength; ++lengthIndex)
{
for (int heightIndex = 0; heightIndex < sectorsHeight; ++heightIndex)
{
string newName = terrain.name + " " + widthIndex + "-" + lengthIndex + "-" + heightIndex;
EditorUtility.DisplayProgressBar(progressTitle, "Creating sector " + newName, progressCounter++ / (float)(sectorsWidth * sectorsLength * sectorsHeight));
GameObject newSectorObject = new GameObject("SECTR " + newName + " Sector");
newSectorObject.transform.parent = baseTransform;
Vector3 sectorCorner = new Vector3(widthIndex * sectorWidth,
heightIndex * sectorHeight,
lengthIndex * sectorLength) + terrain.transform.position;
newSectorObject.transform.position = sectorCorner;
newSectorObject.isStatic = true;
SECTR_Sector newSector = newSectorObject.AddComponent <SECTR_Sector>();
newSector.OverrideBounds = !splitTerrain && (sectorsWidth > 1 || sectorsLength > 1);
newSector.BoundsOverride = new Bounds(sectorCorner + new Vector3(sectorWidth * 0.5f, sectorHeight * 0.5f, sectorLength * 0.5f),
new Vector3(sectorWidth, sectorHeight, sectorLength));
newSectors[widthIndex, lengthIndex, heightIndex] = newSector;
if (splitTerrain && heightIndex == 0)
{
GameObject newTerrainObject = new GameObject(newName + " Terrain");
newTerrainObject.layer = terrainLayer;
newTerrainObject.tag = terrain.tag;
newTerrainObject.transform.parent = newSectorObject.transform;
newTerrainObject.transform.localPosition = Vector3.zero;
newTerrainObject.transform.localRotation = Quaternion.identity;
newTerrainObject.transform.localScale = Vector3.one;
newTerrainObject.isStatic = true;
Terrain newTerrain = newTerrainObject.AddComponent <Terrain>();
newTerrain.terrainData = SECTR_Asset.Create <TerrainData>(exportFolder, newName, new TerrainData());
EditorUtility.SetDirty(newTerrain.terrainData);
SECTR_VC.WaitForVC();
// Copy properties
// Basic terrain properties
newTerrain.editorRenderFlags = terrain.editorRenderFlags;
newTerrain.castShadows = terrain.castShadows;
newTerrain.heightmapMaximumLOD = terrain.heightmapMaximumLOD;
newTerrain.heightmapPixelError = terrain.heightmapPixelError;
newTerrain.lightmapIndex = -1; // Can't set lightmap UVs on terrain.
newTerrain.materialTemplate = terrain.materialTemplate;
#if !UNITY_4
newTerrain.bakeLightProbesForTrees = terrain.bakeLightProbesForTrees;
newTerrain.legacyShininess = terrain.legacyShininess;
newTerrain.legacySpecular = terrain.legacySpecular;
#endif
// Copy geometric data
int heightmapBaseX = widthIndex * heightmapWidth;
int heightmapBaseY = lengthIndex * heightmapLength;
int heightmapWidthX = heightmapWidth + (sectorsWidth > 1 ? 1 : 0);
int heightmapWidthY = heightmapLength + (sectorsLength > 1 ? 1 : 0);
newTerrain.terrainData.heightmapResolution = terrain.terrainData.heightmapResolution / sectorsWidth;
newTerrain.terrainData.size = new Vector3(sectorWidth, terrainSize.y, sectorLength);
newTerrain.terrainData.SetHeights(0, 0, terrain.terrainData.GetHeights(heightmapBaseX, heightmapBaseY, heightmapWidthX, heightmapWidthY));
#if !UNITY_4
newTerrain.terrainData.thickness = terrain.terrainData.thickness;
#endif
// Copy alpha maps
int alphaBaseX = alphaWidth * widthIndex;
int alphaBaseY = alphaLength * lengthIndex;
newTerrain.terrainData.splatPrototypes = terrain.terrainData.splatPrototypes;
newTerrain.basemapDistance = terrain.basemapDistance;
newTerrain.terrainData.baseMapResolution = terrain.terrainData.baseMapResolution / sectorsWidth;
newTerrain.terrainData.alphamapResolution = terrain.terrainData.alphamapResolution / sectorsWidth;
newTerrain.terrainData.SetAlphamaps(0, 0, terrain.terrainData.GetAlphamaps(alphaBaseX, alphaBaseY, alphaWidth, alphaLength));
// Copy detail info
newTerrain.detailObjectDensity = terrain.detailObjectDensity;
newTerrain.detailObjectDistance = terrain.detailObjectDistance;
newTerrain.terrainData.detailPrototypes = terrain.terrainData.detailPrototypes;
newTerrain.terrainData.SetDetailResolution(terrain.terrainData.detailResolution / sectorsWidth, 8); // TODO: extract detailResolutionPerPatch
#if !UNITY_4
newTerrain.collectDetailPatches = terrain.collectDetailPatches;
#endif
int detailBaseX = detailWidth * widthIndex;
int detailBaseY = detailLength * lengthIndex;
int numLayers = terrain.terrainData.detailPrototypes.Length;
for (int layer = 0; layer < numLayers; ++layer)
{
newTerrain.terrainData.SetDetailLayer(0, 0, layer, terrain.terrainData.GetDetailLayer(detailBaseX, detailBaseY, detailWidth, detailLength, layer));
}
// Copy grass and trees
newTerrain.terrainData.wavingGrassAmount = terrain.terrainData.wavingGrassAmount;
newTerrain.terrainData.wavingGrassSpeed = terrain.terrainData.wavingGrassSpeed;
newTerrain.terrainData.wavingGrassStrength = terrain.terrainData.wavingGrassStrength;
newTerrain.terrainData.wavingGrassTint = terrain.terrainData.wavingGrassTint;
newTerrain.treeBillboardDistance = terrain.treeBillboardDistance;
newTerrain.treeCrossFadeLength = terrain.treeCrossFadeLength;
newTerrain.treeDistance = terrain.treeDistance;
newTerrain.treeMaximumFullLODCount = terrain.treeMaximumFullLODCount;
newTerrain.terrainData.treePrototypes = terrain.terrainData.treePrototypes;
newTerrain.terrainData.RefreshPrototypes();
foreach (TreeInstance treeInstace in terrain.terrainData.treeInstances)
{
if (treeInstace.prototypeIndex >= 0 && treeInstace.prototypeIndex < newTerrain.terrainData.treePrototypes.Length &&
newTerrain.terrainData.treePrototypes[treeInstace.prototypeIndex].prefab)
{
Vector3 worldSpaceTreePos = Vector3.Scale(treeInstace.position, terrainSize) + terrain.transform.position;
if (newSector.BoundsOverride.Contains(worldSpaceTreePos))
{
Vector3 localSpaceTreePos = new Vector3((worldSpaceTreePos.x - newTerrain.transform.position.x) / sectorWidth,
treeInstace.position.y,
(worldSpaceTreePos.z - newTerrain.transform.position.z) / sectorLength);
TreeInstance newInstance = treeInstace;
newInstance.position = localSpaceTreePos;
newTerrain.AddTreeInstance(newInstance);
}
}
}
// Copy physics
#if UNITY_4_LATE
newTerrain.terrainData.physicMaterial = terrain.terrainData.physicMaterial;
#endif
// Force terrain to rebuild
newTerrain.Flush();
UnityEditor.EditorUtility.SetDirty(newTerrain.terrainData);
SECTR_VC.WaitForVC();
newTerrain.enabled = false;
newTerrain.enabled = true;
TerrainCollider terrainCollider = terrain.GetComponent <TerrainCollider>();
if (terrainCollider)
{
TerrainCollider newCollider = newTerrainObject.AddComponent <TerrainCollider>();
#if !UNITY_4_LATE
newCollider.sharedMaterial = terrainCollider.sharedMaterial;
#endif
newCollider.terrainData = newTerrain.terrainData;
}
newTerrains[widthIndex, lengthIndex] = newTerrain;
SECTR_Undo.Created(newTerrainObject, undoString);
}
newSector.ForceUpdate(true);
SECTR_Undo.Created(newSectorObject, undoString);
_Encapsulate(newSector, rootTransforms, rootBounds, undoString);
}
}
}
// Create portals and neighbors
progressCounter = 0;
for (int widthIndex = 0; widthIndex < sectorsWidth; ++widthIndex)
{
for (int lengthIndex = 0; lengthIndex < sectorsLength; ++lengthIndex)
{
for (int heightIndex = 0; heightIndex < sectorsHeight; ++heightIndex)
{
EditorUtility.DisplayProgressBar(progressTitle, "Creating portals...", progressCounter++ / (float)(sectorsWidth * sectorsLength * sectorsHeight));
if (widthIndex < sectorsWidth - 1)
{
_CreatePortal(createPortalGeo, newSectors[widthIndex + 1, lengthIndex, heightIndex], newSectors[widthIndex, lengthIndex, heightIndex], baseTransform, undoString);
}
if (lengthIndex < sectorsLength - 1)
{
_CreatePortal(createPortalGeo, newSectors[widthIndex, lengthIndex + 1, heightIndex], newSectors[widthIndex, lengthIndex, heightIndex], baseTransform, undoString);
}
if (heightIndex > 0)
{
_CreatePortal(createPortalGeo, newSectors[widthIndex, lengthIndex, heightIndex], newSectors[widthIndex, lengthIndex, heightIndex - 1], baseTransform, undoString);
}
}
}
}
if (splitTerrain)
{
progressCounter = 0;
for (int widthIndex = 0; widthIndex < sectorsWidth; ++widthIndex)
{
for (int lengthIndex = 0; lengthIndex < sectorsLength; ++lengthIndex)
{
EditorUtility.DisplayProgressBar(progressTitle, "Smoothing split terrain...", progressCounter++ / (float)(sectorsWidth * sectorsLength * sectorsHeight));
// Blend together the seams of the alpha maps, which requires
// going through all of the mip maps of all of the layer textures.
// We have to blend here rather than when we set the alpha data (above)
// because Unity computes mips and we need to blend all of the mips.
Terrain newTerrain = newTerrains[widthIndex, lengthIndex];
SECTR_Sector terrainSector = newSectors[widthIndex, lengthIndex, 0];
terrainSector.LeftTerrain = widthIndex > 0 ? newSectors[widthIndex - 1, lengthIndex, 0] : null;
terrainSector.RightTerrain = widthIndex < sectorsWidth - 1 ? newSectors[widthIndex + 1, lengthIndex, 0] : null;
terrainSector.BottomTerrain = lengthIndex > 0 ? newSectors[widthIndex, lengthIndex - 1, 0] : null;
terrainSector.TopTerrain = lengthIndex < sectorsLength - 1 ? newSectors[widthIndex, lengthIndex + 1, 0] : null;
terrainSector.ConnectTerrainNeighbors();
// Use reflection trickery to get at the raw texture values.
System.Reflection.PropertyInfo alphamapProperty = newTerrain.terrainData.GetType().GetProperty("alphamapTextures",
System.Reflection.BindingFlags.NonPublic |
System.Reflection.BindingFlags.Public |
System.Reflection.BindingFlags.Instance |
System.Reflection.BindingFlags.Static);
// Get the texture we'll write into
Texture2D[] alphaTextures = (Texture2D[])alphamapProperty.GetValue(newTerrain.terrainData, null);
int numTextures = alphaTextures.Length;
// Get the textures we'll read from
Texture2D[] leftNeighborTextures = terrainSector.LeftTerrain != null ? (Texture2D[])alphamapProperty.GetValue(newTerrains[widthIndex - 1, lengthIndex].terrainData, null) : null;
Texture2D[] rightNeighborTextures = terrainSector.RightTerrain != null ? (Texture2D[])alphamapProperty.GetValue(newTerrains[widthIndex + 1, lengthIndex].terrainData, null) : null;
Texture2D[] topNeighborTextures = terrainSector.TopTerrain != null ? (Texture2D[])alphamapProperty.GetValue(newTerrains[widthIndex, lengthIndex + 1].terrainData, null) : null;
Texture2D[] bottomNeighborTextures = terrainSector.BottomTerrain != null ? (Texture2D[])alphamapProperty.GetValue(newTerrains[widthIndex, lengthIndex - 1].terrainData, null) : null;
for (int textureIndex = 0; textureIndex < numTextures; ++textureIndex)
{
Texture2D alphaTexture = alphaTextures[textureIndex];
Texture2D leftTexture = leftNeighborTextures != null ? leftNeighborTextures[textureIndex] : null;
Texture2D rightTexture = rightNeighborTextures != null ? rightNeighborTextures[textureIndex] : null;
Texture2D topTexture = topNeighborTextures != null ? topNeighborTextures[textureIndex] : null;
Texture2D bottomTexture = bottomNeighborTextures != null ? bottomNeighborTextures[textureIndex] : null;
int numMips = alphaTexture.mipmapCount;
for (int mipIndex = 0; mipIndex < numMips; ++mipIndex)
{
Color[] alphaTexels = alphaTexture.GetPixels(mipIndex);
int width = (int)Mathf.Sqrt(alphaTexels.Length);
int height = width;
for (int texelWidthIndex = 0; texelWidthIndex < width; ++texelWidthIndex)
{
for (int texelHeightIndex = 0; texelHeightIndex < height; ++texelHeightIndex)
{
// We can take advantage of the build order to average on the leading edges (right and top)
// and then copy form the trailing edges (left and bottom)
if (texelWidthIndex == 0 && leftTexture)
{
Color[] neighborTexels = leftTexture.GetPixels(mipIndex);
alphaTexels[texelWidthIndex + texelHeightIndex * width] = neighborTexels[(width - 1) + (texelHeightIndex * width)];
}
else if (texelWidthIndex == width - 1 && rightTexture)
{
Color[] neighborTexels = rightTexture.GetPixels(mipIndex);
alphaTexels[texelWidthIndex + texelHeightIndex * width] += neighborTexels[0 + (texelHeightIndex * width)];
alphaTexels[texelWidthIndex + texelHeightIndex * width] *= 0.5f;
}
else if (texelHeightIndex == 0 && bottomTexture)
{
Color[] neighborTexels = bottomTexture.GetPixels(mipIndex);
alphaTexels[texelWidthIndex + texelHeightIndex * width] = neighborTexels[texelWidthIndex + ((height - 1) * width)];
}
else if (texelHeightIndex == height - 1 && topTexture)
{
Color[] neighborTexels = topTexture.GetPixels(mipIndex);
alphaTexels[texelWidthIndex + texelHeightIndex * width] += neighborTexels[texelWidthIndex + (0 * width)];
alphaTexels[texelWidthIndex + texelHeightIndex * width] *= 0.5f;
}
}
}
alphaTexture.SetPixels(alphaTexels, mipIndex);
}
alphaTexture.wrapMode = TextureWrapMode.Clamp;
alphaTexture.Apply(false);
}
newTerrain.Flush();
}
}
}
EditorUtility.ClearProgressBar();
// destroy original terrain
if (splitTerrain)
{
SECTR_Undo.Destroy(terrain.gameObject, undoString);
}
}
