private void GenerateMesh(List <HEU_LoadBufferMesh> meshBuffers)
{
HEU_SessionBase session = GetHoudiniSession(true);
Transform parent = this.gameObject.transform;
int numBuffers = meshBuffers.Count;
for (int m = 0; m < numBuffers; ++m)
{
if (meshBuffers[m]._geoCache != null)
{
GameObject newGameObject = new GameObject("mesh_" + meshBuffers[m]._geoCache._partName);
Transform newTransform = newGameObject.transform;
newTransform.parent = parent;
HEU_GeneratedOutput generatedOutput = new HEU_GeneratedOutput();
generatedOutput._outputData._gameObject = newGameObject;
bool bResult = false;
int numLODs = meshBuffers[m]._LODGroupMeshes != null ? meshBuffers[m]._LODGroupMeshes.Count : 0;
if (numLODs > 1)
{
bResult = HEU_GenerateGeoCache.GenerateLODMeshesFromGeoGroups(session, meshBuffers[m]._LODGroupMeshes,
meshBuffers[m]._geoCache, generatedOutput, meshBuffers[m]._defaultMaterialKey,
meshBuffers[m]._bGenerateUVs, meshBuffers[m]._bGenerateTangents, meshBuffers[m]._bGenerateNormals, meshBuffers[m]._bPartInstanced);
}
else if (numLODs == 1)
{
bResult = HEU_GenerateGeoCache.GenerateMeshFromSingleGroup(session, meshBuffers[m]._LODGroupMeshes[0],
meshBuffers[m]._geoCache, generatedOutput, meshBuffers[m]._defaultMaterialKey,
meshBuffers[m]._bGenerateUVs, meshBuffers[m]._bGenerateTangents, meshBuffers[m]._bGenerateNormals, meshBuffers[m]._bPartInstanced);
HEU_GeneralUtility.UpdateGeneratedAttributeStore(session, _cookNodeID, meshBuffers[m]._id,
generatedOutput._outputData._gameObject);
}
else
{
// Set return state to false if no mesh and no colliders (i.e. nothing is generated)
bResult = (meshBuffers[m]._geoCache._colliderInfos.Count > 0);
}
if (bResult)
{
HEU_GenerateGeoCache.UpdateColliders(meshBuffers[m]._geoCache, generatedOutput._outputData);
meshBuffers[m]._generatedOutput = generatedOutput;
_generatedOutputs.Add(generatedOutput);
SetOutputVisiblity(meshBuffers[m]);
}
else
{
HEU_GeneratedOutput.DestroyGeneratedOutput(generatedOutput);
}
}
}
}
public static void DestroyGeneratedOutputData(HEU_GeneratedOutputData generatedOutputData, bool bDontDeletePersistantResources)
{
// Generated Material references
HEU_GeneratedOutput.ClearGeneratedMaterialReferences(generatedOutputData);
// Components
HEU_GeneralUtility.DestroyGeneratedMeshMaterialsLODGroups(generatedOutputData._gameObject, bDontDeletePersistantResources);
// Gameobject
HEU_GeneralUtility.DestroyImmediate(generatedOutputData._gameObject);
}
private void DestroyOutputs()
{
if (_generatedOutputs != null)
{
for (int i = 0; i < _generatedOutputs.Count; ++i)
{
HEU_GeneratedOutput.DestroyGeneratedOutput(_generatedOutputs[i]);
_generatedOutputs[i] = null;
}
_generatedOutputs.Clear();
}
}
/// <summary>
/// Remove material overrides on given output, replacing
/// with the generated materials.
/// </summary>
public static void ResetMaterialOverrides(HEU_GeneratedOutput output)
{
if (HasLODGroup(output))
{
foreach(HEU_GeneratedOutputData child in output._childOutputs)
{
ResetMaterialOverrides(child);
}
}
else
{
ResetMaterialOverrides(output._outputData);
}
}
public static void DestroyGeneratedOutputChildren(HEU_GeneratedOutput generatedOutput)
{
// LOD Group component
HEU_GeneralUtility.DestroyComponent<LODGroup>(generatedOutput._outputData._gameObject);
int numChildren = generatedOutput._childOutputs != null ? generatedOutput._childOutputs.Count : 0;
for (int i = 0; i < numChildren; ++i)
{
if (generatedOutput._childOutputs[i] != null && generatedOutput._childOutputs[i]._gameObject != null)
{
DestroyGeneratedOutputData(generatedOutput._childOutputs[i], true);
}
}
generatedOutput._childOutputs.Clear();
}
public static void DestroyGeneratedOutput(HEU_GeneratedOutput generatedOutput)
{
int numChildren = generatedOutput._childOutputs != null ? generatedOutput._childOutputs.Count : 0;
for (int i = 0; i < numChildren; ++i)
{
if (generatedOutput._childOutputs[i] != null && generatedOutput._childOutputs[i]._gameObject != null)
{
HEU_GeneralUtility.DestroyImmediate(generatedOutput._childOutputs[i]._gameObject);
}
}
generatedOutput._childOutputs.Clear();
HEU_GeneralUtility.DestroyImmediate(generatedOutput._outputData._gameObject);
generatedOutput._outputData._gameObject = null;
generatedOutput._outputData._renderMaterials = null;
}
/// <summary>
/// Returns true if output is using checkMaterial. Checks children outputs as well.
/// </summary>
/// <param name="checkMaterial">Material to check</param>
/// <param name="output">Output to check</param>
/// <returns>True if output is using checkMaterial</returns>
public static bool IsOutputUsingMaterial(Material checkMaterial, HEU_GeneratedOutput output)
{
bool bValue = IsOutputDataUsingMaterial(checkMaterial, output._outputData);
if (!bValue)
{
foreach (HEU_GeneratedOutputData child in output._childOutputs)
{
if(IsOutputDataUsingMaterial(checkMaterial, child))
{
bValue = true;
break;
}
}
}
return bValue;
}
/// <summary>
/// Returns list of materials that were generated for inGameObject in the output data.
/// Checks children as well.
/// </summary>
/// <param name="output">The output data to check for matching inGameObject</param>
/// <param name="inGameObject">The inGameObject to find in the output</param>
/// <returns>List of generated materials or null if not found</returns>
public static Material[] GetGeneratedMaterialsForGameObject(HEU_GeneratedOutput output, GameObject inGameObject)
{
if(output._outputData._gameObject == inGameObject)
{
return output._outputData._renderMaterials;
}
else
{
foreach(HEU_GeneratedOutputData outputData in output._childOutputs)
{
if(outputData._gameObject == inGameObject)
{
return outputData._renderMaterials;
}
}
}
return null;
}
private void SetOutputVisiblity(HEU_LoadBufferBase buffer)
{
bool bVisibility = !buffer._bInstanced;
if (HEU_GeneratedOutput.HasLODGroup(buffer._generatedOutput))
{
foreach (HEU_GeneratedOutputData childOutput in buffer._generatedOutput._childOutputs)
{
HEU_GeneralUtility.SetGameObjectRenderVisiblity(childOutput._gameObject, bVisibility);
HEU_GeneralUtility.SetGameObjectColliderState(childOutput._gameObject, bVisibility);
}
}
else
{
HEU_GeneralUtility.SetGameObjectRenderVisiblity(buffer._generatedOutput._outputData._gameObject, bVisibility);
HEU_GeneralUtility.SetGameObjectColliderState(buffer._generatedOutput._outputData._gameObject, bVisibility);
}
}
private void DestroyOutputs()
{
if (_generatedOutputs != null)
{
for (int i = 0; i < _generatedOutputs.Count; ++i)
{
HEU_GeneratedOutput.DestroyGeneratedOutput(_generatedOutputs[i]);
_generatedOutputs[i] = null;
}
_generatedOutputs.Clear();
}
if (_outputCacheFilePaths != null && _outputCacheFilePaths.Count > 0)
{
foreach(string filepath in _outputCacheFilePaths)
{
HEU_AssetDatabase.DeleteAssetAtPath(filepath);
}
_outputCacheFilePaths.Clear();
}
}
/// <summary>
/// Returns true if output has LOD groups.
/// </summary>
public static bool HasLODGroup(HEU_GeneratedOutput output)
{
return output._childOutputs.Count > 0;
}
private void GenerateTerrain(List<HEU_LoadBufferVolume> terrainBuffers)
{
Transform parent = this.gameObject.transform;
// Directory to store generated terrain files.
string outputTerrainpath = GetOutputCacheDirectory();
outputTerrainpath = HEU_Platform.BuildPath(outputTerrainpath, "Terrain");
int numVolumes = terrainBuffers.Count;
for(int t = 0; t < numVolumes; ++t)
{
if (terrainBuffers[t]._heightMap != null)
{
GameObject newGameObject = new GameObject("heightfield_" + terrainBuffers[t]._tileIndex);
Transform newTransform = newGameObject.transform;
newTransform.parent = parent;
HEU_GeneratedOutput generatedOutput = new HEU_GeneratedOutput();
generatedOutput._outputData._gameObject = newGameObject;
Terrain terrain = HEU_GeneralUtility.GetOrCreateComponent<Terrain>(newGameObject);
TerrainCollider collider = HEU_GeneralUtility.GetOrCreateComponent<TerrainCollider>(newGameObject);
if (!string.IsNullOrEmpty(terrainBuffers[t]._terrainDataPath))
{
// Load the source TerrainData, then make a unique copy of it in the cache folder
TerrainData sourceTerrainData = HEU_AssetDatabase.LoadAssetAtPath(terrainBuffers[t]._terrainDataPath, typeof(TerrainData)) as TerrainData;
if (sourceTerrainData == null)
{
Debug.LogWarningFormat("TerrainData, set via attribute, not found at: {0}", terrainBuffers[t]._terrainDataPath);
}
terrain.terrainData = HEU_AssetDatabase.CopyUniqueAndLoadAssetAtAnyPath(sourceTerrainData, outputTerrainpath, typeof(TerrainData)) as TerrainData;
if (terrain.terrainData != null)
{
// Store path so that it can be deleted on clean up
AddGeneratedOutputFilePath(HEU_AssetDatabase.GetAssetPath(terrain.terrainData));
}
}
if (terrain.terrainData == null)
{
terrain.terrainData = new TerrainData();
}
TerrainData terrainData = terrain.terrainData;
collider.terrainData = terrainData;
HEU_TerrainUtility.SetTerrainMaterial(terrain, terrainBuffers[t]._specifiedTerrainMaterialName);
#if UNITY_2018_3_OR_NEWER
terrain.allowAutoConnect = true;
// This has to be set after setting material
terrain.drawInstanced = true;
#endif
int heightMapSize = terrainBuffers[t]._heightMapWidth;
terrainData.heightmapResolution = heightMapSize;
if (terrainData.heightmapResolution != heightMapSize)
{
Debug.LogErrorFormat("Unsupported terrain size: {0}", heightMapSize);
continue;
}
// The terrainData.baseMapResolution is not set here, but rather left to whatever default Unity uses
// The terrainData.alphamapResolution is set later when setting the alphamaps.
// 32 is the default for resolutionPerPatch
const int detailResolution = 1024;
const int resolutionPerPatch = 32;
terrainData.SetDetailResolution(detailResolution, resolutionPerPatch);
terrainData.SetHeights(0, 0, terrainBuffers[t]._heightMap);
// Note that Unity uses a default height range of 600 when a flat terrain is created.
// Without a non-zero value for the height range, user isn't able to draw heights.
// Therefore, set 600 as the value if height range is currently 0 (due to flat heightfield).
float heightRange = terrainBuffers[t]._heightRange;
if (heightRange == 0)
{
heightRange = 600;
}
terrainData.size = new Vector3(terrainBuffers[t]._terrainSizeX, heightRange, terrainBuffers[t]._terrainSizeY);
terrain.Flush();
// Set position
HAPI_Transform hapiTransformVolume = new HAPI_Transform(true);
hapiTransformVolume.position[0] += terrainBuffers[t]._position[0];
hapiTransformVolume.position[1] += terrainBuffers[t]._position[1];
hapiTransformVolume.position[2] += terrainBuffers[t]._position[2];
HEU_HAPIUtility.ApplyLocalTransfromFromHoudiniToUnity(ref hapiTransformVolume, newTransform);
// Set layers
Texture2D defaultTexture = HEU_VolumeCache.LoadDefaultSplatTexture();
int numLayers = terrainBuffers[t]._splatLayers.Count;
#if UNITY_2018_3_OR_NEWER
// Create TerrainLayer for each heightfield layer.
// Note that height and mask layers are ignored (i.e. not created as TerrainLayers).
// Since height layer is first, only process layers from 2nd index onwards.
if (numLayers > 1)
{
// Keep existing TerrainLayers, and either update or append to them
TerrainLayer[] existingTerrainLayers = terrainData.terrainLayers;
// Total layers are existing layers + new alpha maps
List<TerrainLayer> finalTerrainLayers = new List<TerrainLayer>(existingTerrainLayers);
for (int m = 1; m < numLayers; ++m)
{
TerrainLayer terrainlayer = null;
int terrainLayerIndex = -1;
bool bSetTerrainLayerProperties = true;
HEU_LoadBufferVolumeLayer layer = terrainBuffers[t]._splatLayers[m];
// Look up TerrainLayer file via attribute if user has set it
if (!string.IsNullOrEmpty(layer._layerPath))
{
terrainlayer = HEU_AssetDatabase.LoadAssetAtPath(layer._layerPath, typeof(TerrainLayer)) as TerrainLayer;
if (terrainlayer == null)
{
Debug.LogWarningFormat("TerrainLayer, set via attribute, not found at: {0}", layer._layerPath);
continue;
}
else
{
// Always check if its part of existing list so as not to add it again
terrainLayerIndex = HEU_TerrainUtility.GetTerrainLayerIndex(terrainlayer, existingTerrainLayers);
}
}
if (terrainlayer == null)
{
terrainlayer = new TerrainLayer();
terrainLayerIndex = finalTerrainLayers.Count;
finalTerrainLayers.Add(terrainlayer);
}
else
{
// For existing TerrainLayer, make a copy of it if it has custom layer attributes
// because we don't want to change the original TerrainLayer.
if (layer._hasLayerAttributes && terrainLayerIndex >= 0)
{
// Copy the TerrainLayer file
TerrainLayer prevTerrainLayer = terrainlayer;
terrainlayer = HEU_AssetDatabase.CopyAndLoadAssetAtAnyPath(terrainlayer, outputTerrainpath, typeof(TerrainLayer), true) as TerrainLayer;
if (terrainlayer != null)
{
// Update the TerrainLayer reference in the list with this copy
finalTerrainLayers[terrainLayerIndex] = terrainlayer;
// Store path for clean up later
AddGeneratedOutputFilePath(HEU_AssetDatabase.GetAssetPath(terrainlayer));
}
else
{
Debug.LogErrorFormat("Unable to copy TerrainLayer '{0}' for generating Terrain. "
+ "Using original TerrainLayer. Will not be able to set any TerrainLayer properties.", layer._layerName);
terrainlayer = prevTerrainLayer;
bSetTerrainLayerProperties = false;
// Again, continuing on to keep proper indexing.
}
}
}
if (bSetTerrainLayerProperties)
{
if (!string.IsNullOrEmpty(layer._diffuseTexturePath))
{
terrainlayer.diffuseTexture = HEU_MaterialFactory.LoadTexture(layer._diffuseTexturePath);
}
if (terrainlayer.diffuseTexture == null)
{
terrainlayer.diffuseTexture = defaultTexture;
}
terrainlayer.diffuseRemapMin = Vector4.zero;
terrainlayer.diffuseRemapMax = Vector4.one;
if (!string.IsNullOrEmpty(layer._maskTexturePath))
{
terrainlayer.maskMapTexture = HEU_MaterialFactory.LoadTexture(layer._maskTexturePath);
}
terrainlayer.maskMapRemapMin = Vector4.zero;
terrainlayer.maskMapRemapMax = Vector4.one;
terrainlayer.metallic = layer._metallic;
if (!string.IsNullOrEmpty(layer._normalTexturePath))
{
terrainlayer.normalMapTexture = HEU_MaterialFactory.LoadTexture(layer._normalTexturePath);
}
terrainlayer.normalScale = layer._normalScale;
terrainlayer.smoothness = layer._smoothness;
terrainlayer.specular = layer._specularColor;
terrainlayer.tileOffset = layer._tileOffset;
if (layer._tileSize.magnitude == 0f && terrainlayer.diffuseTexture != null)
{
// Use texture size if tile size is 0
layer._tileSize = new Vector2(terrainlayer.diffuseTexture.width, terrainlayer.diffuseTexture.height);
}
terrainlayer.tileSize = layer._tileSize;
}
}
terrainData.terrainLayers = finalTerrainLayers.ToArray();
}
#else
// Need to create SplatPrototype for each layer in heightfield, representing the textures.
SplatPrototype[] splatPrototypes = new SplatPrototype[numLayers];
for (int m = 0; m < numLayers; ++m)
{
splatPrototypes[m] = new SplatPrototype();
HEU_LoadBufferVolumeLayer layer = terrainBuffers[t]._splatLayers[m];
Texture2D diffuseTexture = null;
if (!string.IsNullOrEmpty(layer._diffuseTexturePath))
{
diffuseTexture = HEU_MaterialFactory.LoadTexture(layer._diffuseTexturePath);
}
if (diffuseTexture == null)
{
diffuseTexture = defaultTexture;
}
splatPrototypes[m].texture = diffuseTexture;
splatPrototypes[m].tileOffset = layer._tileOffset;
if (layer._tileSize.magnitude == 0f && diffuseTexture != null)
{
// Use texture size if tile size is 0
layer._tileSize = new Vector2(diffuseTexture.width, diffuseTexture.height);
}
splatPrototypes[m].tileSize = layer._tileSize;
splatPrototypes[m].metallic = layer._metallic;
splatPrototypes[m].smoothness = layer._smoothness;
if (!string.IsNullOrEmpty(layer._normalTexturePath))
{
splatPrototypes[m].normalMap = HEU_MaterialFactory.LoadTexture(layer._normalTexturePath);
}
}
terrainData.splatPrototypes = splatPrototypes;
#endif
// Set the splatmaps
if (terrainBuffers[t]._splatMaps != null)
{
// Set the alphamap size before setting the alphamaps to get correct scaling
// The alphamap size comes from the first alphamap layer
int alphamapResolution = terrainBuffers[t]._heightMapWidth;
if (numLayers > 1)
{
alphamapResolution = terrainBuffers[t]._splatLayers[1]._heightMapWidth;
}
terrainData.alphamapResolution = alphamapResolution;
terrainData.SetAlphamaps(0, 0, terrainBuffers[t]._splatMaps);
}
// Set the tree scattering
if (terrainBuffers[t]._scatterTrees != null)
{
HEU_TerrainUtility.ApplyScatterTrees(terrainData, terrainBuffers[t]._scatterTrees);
}
// Set the detail layers
if (terrainBuffers[t]._detailPrototypes != null)
{
HEU_TerrainUtility.ApplyDetailLayers(terrain, terrainData, terrainBuffers[t]._detailProperties,
terrainBuffers[t]._detailPrototypes, terrainBuffers[t]._detailMaps);
}
terrainBuffers[t]._generatedOutput = generatedOutput;
_generatedOutputs.Add(generatedOutput);
SetOutputVisiblity(terrainBuffers[t]);
}
}
}
private void GenerateTerrain(List<HEU_LoadBufferVolume> terrainBuffers)
{
Transform parent = this.gameObject.transform;
int numVolumes = terrainBuffers.Count;
for(int t = 0; t < numVolumes; ++t)
{
if (terrainBuffers[t]._heightMap != null)
{
GameObject newGameObject = new GameObject("heightfield_" + terrainBuffers[t]._tileIndex);
Transform newTransform = newGameObject.transform;
newTransform.parent = parent;
HEU_GeneratedOutput generatedOutput = new HEU_GeneratedOutput();
generatedOutput._outputData._gameObject = newGameObject;
Terrain terrain = HEU_GeneralUtility.GetOrCreateComponent<Terrain>(newGameObject);
TerrainCollider collider = HEU_GeneralUtility.GetOrCreateComponent<TerrainCollider>(newGameObject);
if (!string.IsNullOrEmpty(terrainBuffers[t]._terrainDataPath))
{
terrain.terrainData = HEU_AssetDatabase.LoadAssetAtPath(terrainBuffers[t]._terrainDataPath, typeof(TerrainData)) as TerrainData;
if (terrain.terrainData == null)
{
Debug.LogWarningFormat("TerrainData, set via attribute, not found at: {0}", terrainBuffers[t]._terrainDataPath);
}
}
if (terrain.terrainData == null)
{
terrain.terrainData = new TerrainData();
}
TerrainData terrainData = terrain.terrainData;
collider.terrainData = terrainData;
HEU_TerrainUtility.SetTerrainMaterial(terrain);
#if UNITY_2018_3_OR_NEWER
terrain.allowAutoConnect = true;
// This has to be set after setting material
terrain.drawInstanced = true;
#endif
int heightMapSize = terrainBuffers[t]._heightMapWidth;
terrainData.heightmapResolution = heightMapSize;
if (terrainData.heightmapResolution != heightMapSize)
{
Debug.LogErrorFormat("Unsupported terrain size: {0}", heightMapSize);
continue;
}
// The terrainData.baseMapResolution is not set here, but rather left to whatever default Unity uses
// The terrainData.alphamapResolution is set later when setting the alphamaps.
// 32 is the default for resolutionPerPatch
const int detailResolution = 1024;
const int resolutionPerPatch = 32;
terrainData.SetDetailResolution(detailResolution, resolutionPerPatch);
terrainData.SetHeights(0, 0, terrainBuffers[t]._heightMap);
// Note that Unity uses a default height range of 600 when a flat terrain is created.
// Without a non-zero value for the height range, user isn't able to draw heights.
// Therefore, set 600 as the value if height range is currently 0 (due to flat heightfield).
float heightRange = terrainBuffers[t]._heightRange;
if (heightRange == 0)
{
heightRange = 600;
}
terrainData.size = new Vector3(terrainBuffers[t]._terrainSizeX, heightRange, terrainBuffers[t]._terrainSizeY);
terrain.Flush();
// Set position
HAPI_Transform hapiTransformVolume = new HAPI_Transform(true);
hapiTransformVolume.position[0] += terrainBuffers[t]._position[0];
hapiTransformVolume.position[1] += terrainBuffers[t]._position[1];
hapiTransformVolume.position[2] += terrainBuffers[t]._position[2];
HEU_HAPIUtility.ApplyLocalTransfromFromHoudiniToUnity(ref hapiTransformVolume, newTransform);
// Set layers
Texture2D defaultTexture = HEU_VolumeCache.LoadDefaultSplatTexture();
int numLayers = terrainBuffers[t]._layers.Count;
#if UNITY_2018_3_OR_NEWER
// Create TerrainLayer for each heightfield layer.
// Note that height and mask layers are ignored (i.e. not created as TerrainLayers).
// Since height layer is first, only process layers from 2nd index onwards.
if (numLayers > 1)
{
TerrainLayer[] terrainLayers = new TerrainLayer[numLayers - 1];
for (int m = 1; m < numLayers; ++m)
{
TerrainLayer terrainlayer = null;
HEU_LoadBufferVolumeLayer layer = terrainBuffers[t]._layers[m];
// Look up TerrainLayer file via attribute if user has set it
if (!string.IsNullOrEmpty(layer._layerPath))
{
terrainlayer = HEU_AssetDatabase.LoadAssetAtPath(layer._layerPath, typeof(TerrainLayer)) as TerrainLayer;
if (terrainlayer == null)
{
Debug.LogWarningFormat("TerrainLayer, set via attribute, not found at: {0}", layer._layerPath);
continue;
}
}
if (terrainlayer == null)
{
terrainlayer = new TerrainLayer();
}
if (!string.IsNullOrEmpty(layer._diffuseTexturePath))
{
terrainlayer.diffuseTexture = HEU_MaterialFactory.LoadTexture(layer._diffuseTexturePath);
}
if (terrainlayer.diffuseTexture == null)
{
terrainlayer.diffuseTexture = defaultTexture;
}
terrainlayer.diffuseRemapMin = Vector4.zero;
terrainlayer.diffuseRemapMax = Vector4.one;
if (!string.IsNullOrEmpty(layer._maskTexturePath))
{
terrainlayer.maskMapTexture = HEU_MaterialFactory.LoadTexture(layer._maskTexturePath);
}
terrainlayer.maskMapRemapMin = Vector4.zero;
terrainlayer.maskMapRemapMax = Vector4.one;
terrainlayer.metallic = layer._metallic;
if (!string.IsNullOrEmpty(layer._normalTexturePath))
{
terrainlayer.normalMapTexture = HEU_MaterialFactory.LoadTexture(layer._normalTexturePath);
}
terrainlayer.normalScale = layer._normalScale;
terrainlayer.smoothness = layer._smoothness;
terrainlayer.specular = layer._specularColor;
terrainlayer.tileOffset = layer._tileOffset;
if (layer._tileSize.magnitude == 0f && terrainlayer.diffuseTexture != null)
{
// Use texture size if tile size is 0
layer._tileSize = new Vector2(terrainlayer.diffuseTexture.width, terrainlayer.diffuseTexture.height);
}
terrainlayer.tileSize = layer._tileSize;
// Note index is m - 1 due to skipping height layer
terrainLayers[m - 1] = terrainlayer;
}
terrainData.terrainLayers = terrainLayers;
}
#else
// Need to create SplatPrototype for each layer in heightfield, representing the textures.
SplatPrototype[] splatPrototypes = new SplatPrototype[numLayers];
for (int m = 0; m < numLayers; ++m)
{
splatPrototypes[m] = new SplatPrototype();
HEU_LoadBufferVolumeLayer layer = terrainBuffers[t]._layers[m];
Texture2D diffuseTexture = null;
if (!string.IsNullOrEmpty(layer._diffuseTexturePath))
{
diffuseTexture = HEU_MaterialFactory.LoadTexture(layer._diffuseTexturePath);
}
if (diffuseTexture == null)
{
diffuseTexture = defaultTexture;
}
splatPrototypes[m].texture = diffuseTexture;
splatPrototypes[m].tileOffset = layer._tileOffset;
if (layer._tileSize.magnitude == 0f && diffuseTexture != null)
{
// Use texture size if tile size is 0
layer._tileSize = new Vector2(diffuseTexture.width, diffuseTexture.height);
}
splatPrototypes[m].tileSize = layer._tileSize;
splatPrototypes[m].metallic = layer._metallic;
splatPrototypes[m].smoothness = layer._smoothness;
if (!string.IsNullOrEmpty(layer._normalTexturePath))
{
splatPrototypes[m].normalMap = HEU_MaterialFactory.LoadTexture(layer._normalTexturePath);
}
}
terrainData.splatPrototypes = splatPrototypes;
#endif
// Set the splatmaps
if (terrainBuffers[t]._splatMaps != null)
{
// Set the alphamap size before setting the alphamaps to get correct scaling
// The alphamap size comes from the first alphamap layer
int alphamapResolution = terrainBuffers[t]._heightMapWidth;
if (numLayers > 1)
{
alphamapResolution = terrainBuffers[t]._layers[1]._heightMapWidth;
}
terrainData.alphamapResolution = alphamapResolution;
terrainData.SetAlphamaps(0, 0, terrainBuffers[t]._splatMaps);
}
// Set the tree scattering
if (terrainBuffers[t]._scatterTrees != null)
{
HEU_TerrainUtility.ApplyScatter(terrainData, terrainBuffers[t]._scatterTrees);
}
terrainBuffers[t]._generatedOutput = generatedOutput;
_generatedOutputs.Add(generatedOutput);
SetOutputVisiblity(terrainBuffers[t]);
}
}
}
private void GenerateTerrain(List<HEU_LoadBufferVolume> terrainBuffers)
{
Transform parent = this.gameObject.transform;
int numVolues = terrainBuffers.Count;
for(int t = 0; t < numVolues; ++t)
{
if (terrainBuffers[t]._heightMap != null)
{
GameObject newGameObject = new GameObject("heightfield_" + terrainBuffers[t]._tileIndex);
Transform newTransform = newGameObject.transform;
newTransform.parent = parent;
HEU_GeneratedOutput generatedOutput = new HEU_GeneratedOutput();
generatedOutput._outputData._gameObject = newGameObject;
Terrain terrain = HEU_GeneralUtility.GetOrCreateComponent<Terrain>(newGameObject);
TerrainCollider collider = HEU_GeneralUtility.GetOrCreateComponent<TerrainCollider>(newGameObject);
terrain.terrainData = new TerrainData();
TerrainData terrainData = terrain.terrainData;
collider.terrainData = terrainData;
int heightMapSize = terrainBuffers[t]._heightMapSize;
terrainData.heightmapResolution = heightMapSize;
if (terrainData.heightmapResolution != heightMapSize)
{
Debug.LogErrorFormat("Unsupported terrain size: {0}", heightMapSize);
continue;
}
terrainData.baseMapResolution = heightMapSize;
terrainData.alphamapResolution = heightMapSize;
const int resolutionPerPatch = 128;
terrainData.SetDetailResolution(resolutionPerPatch, resolutionPerPatch);
terrainData.SetHeights(0, 0, terrainBuffers[t]._heightMap);
terrainData.size = new Vector3(terrainBuffers[t]._terrainSizeX, terrainBuffers[t]._heightRange, terrainBuffers[t]._terrainSizeY);
terrain.Flush();
// Set position
HAPI_Transform hapiTransformVolume = new HAPI_Transform(true);
hapiTransformVolume.position[0] += terrainBuffers[t]._position[0];
hapiTransformVolume.position[1] += terrainBuffers[t]._position[1];
hapiTransformVolume.position[2] += terrainBuffers[t]._position[2];
HEU_HAPIUtility.ApplyLocalTransfromFromHoudiniToUnity(ref hapiTransformVolume, newTransform);
// Set layers
Texture2D defaultTexture = HEU_VolumeCache.LoadDefaultSplatTexture();
int numLayers = terrainBuffers[t]._layers.Count;
#if UNITY_2018_3_OR_NEWER
// Create TerrainLayer for each heightfield layer
// Note that at time of this implementation the new Unity terrain
// is still in beta. Therefore, the following layer creation is subject
// to change.
TerrainLayer[] terrainLayers = new TerrainLayer[numLayers];
for (int m = 0; m < numLayers; ++m)
{
terrainLayers[m] = new TerrainLayer();
HEU_LoadBufferVolumeLayer layer = terrainBuffers[t]._layers[m];
if (!string.IsNullOrEmpty(layer._diffuseTexturePath))
{
// Using Resources.Load is much faster than AssetDatabase.Load
//terrainLayers[m].diffuseTexture = HEU_MaterialFactory.LoadTexture(layer._diffuseTexturePath);
terrainLayers[m].diffuseTexture = Resources.Load<Texture2D>(layer._diffuseTexturePath);
}
if (terrainLayers[m].diffuseTexture == null)
{
terrainLayers[m].diffuseTexture = defaultTexture;
}
terrainLayers[m].diffuseRemapMin = Vector4.zero;
terrainLayers[m].diffuseRemapMax = Vector4.one;
if (!string.IsNullOrEmpty(layer._maskTexturePath))
{
// Using Resources.Load is much faster than AssetDatabase.Load
//terrainLayers[m].maskMapTexture = HEU_MaterialFactory.LoadTexture(layer._maskTexturePath);
terrainLayers[m].maskMapTexture = Resources.Load<Texture2D>(layer._maskTexturePath);
}
terrainLayers[m].maskMapRemapMin = Vector4.zero;
terrainLayers[m].maskMapRemapMax = Vector4.one;
terrainLayers[m].metallic = layer._metallic;
if (!string.IsNullOrEmpty(layer._normalTexturePath))
{
terrainLayers[m].normalMapTexture = HEU_MaterialFactory.LoadTexture(layer._normalTexturePath);
}
terrainLayers[m].normalScale = layer._normalScale;
terrainLayers[m].smoothness = layer._smoothness;
terrainLayers[m].specular = layer._specularColor;
terrainLayers[m].tileOffset = layer._tileOffset;
if (layer._tileSize.magnitude == 0f && terrainLayers[m].diffuseTexture != null)
{
// Use texture size if tile size is 0
layer._tileSize = new Vector2(terrainLayers[m].diffuseTexture.width, terrainLayers[m].diffuseTexture.height);
}
terrainLayers[m].tileSize = layer._tileSize;
}
terrainData.terrainLayers = terrainLayers;
#else
// Need to create SplatPrototype for each layer in heightfield, representing the textures.
SplatPrototype[] splatPrototypes = new SplatPrototype[numLayers];
for (int m = 0; m < numLayers; ++m)
{
splatPrototypes[m] = new SplatPrototype();
HEU_LoadBufferVolumeLayer layer = terrainBuffers[t]._layers[m];
Texture2D diffuseTexture = null;
if (!string.IsNullOrEmpty(layer._diffuseTexturePath))
{
diffuseTexture = HEU_MaterialFactory.LoadTexture(layer._diffuseTexturePath);
}
if (diffuseTexture == null)
{
diffuseTexture = defaultTexture;
}
splatPrototypes[m].texture = diffuseTexture;
splatPrototypes[m].tileOffset = layer._tileOffset;
if (layer._tileSize.magnitude == 0f && diffuseTexture != null)
{
// Use texture size if tile size is 0
layer._tileSize = new Vector2(diffuseTexture.width, diffuseTexture.height);
}
splatPrototypes[m].tileSize = layer._tileSize;
splatPrototypes[m].metallic = layer._metallic;
splatPrototypes[m].smoothness = layer._smoothness;
if (!string.IsNullOrEmpty(layer._normalTexturePath))
{
splatPrototypes[m].normalMap = HEU_MaterialFactory.LoadTexture(layer._normalTexturePath);
}
}
terrainData.splatPrototypes = splatPrototypes;
#endif
terrainData.SetAlphamaps(0, 0, terrainBuffers[t]._splatMaps);
//string assetPath = HEU_AssetDatabase.CreateAssetCacheFolder("terrainData");
//AssetDatabase.CreateAsset(terrainData, assetPath);
//Debug.Log("Created asset data at " + assetPath);
terrainBuffers[t]._generatedOutput = generatedOutput;
_generatedOutputs.Add(generatedOutput);
SetOutputVisiblity(terrainBuffers[t]);
}
}
}
