public void CopyValuesTo(HEU_VolumeCache destCache)
{
destCache.UIExpanded = UIExpanded;
destCache._terrainData = Object.Instantiate(_terrainData);
if (_detailProperties != null)
{
if (destCache._detailProperties == null)
{
destCache._detailProperties = new HEU_DetailProperties();
}
CopyDetailProperties(_detailProperties, destCache._detailProperties);
}
else
{
destCache._detailProperties = null;
}
foreach (HEU_VolumeLayer srcLayer in _layers)
{
HEU_VolumeLayer destLayer = destCache.GetLayer(srcLayer._layerName);
if (destLayer != null)
{
CopyLayer(srcLayer, destLayer);
}
}
}
public bool ApplyPreset(HEU_VolumeCachePreset volumeCachePreset)
{
UIExpanded = volumeCachePreset._uiExpanded;
// Load the TerrainData if the path is given
//Debug.Log("Get terraindata path: " + volumeCachePreset._terrainDataPath);
if (!string.IsNullOrEmpty(volumeCachePreset._terrainDataPath))
{
_terrainData = HEU_AssetDatabase.LoadAssetAtPath(volumeCachePreset._terrainDataPath, typeof(TerrainData)) as TerrainData;
//Debug.Log("Loaded terrain? " + (_terrainData != null ? "yes" : "no"));
}
foreach (HEU_VolumeLayerPreset layerPreset in volumeCachePreset._volumeLayersPresets)
{
HEU_VolumeLayer layer = GetLayer(layerPreset._layerName);
if (layer == null)
{
Debug.LogWarningFormat("Volume layer with name {0} not found! Unable to set heightfield layer preset.", layerPreset._layerName);
return false;
}
layer._strength = layerPreset._strength;
layer._tile = layerPreset._tile;
layer._uiExpanded = layerPreset._uiExpanded;
}
IsDirty = true;
return true;
}
public void ResetParameters()
{
HEU_VolumeLayer defaultLayer = new HEU_VolumeLayer();
foreach (HEU_VolumeLayer layer in _layers)
{
CopyLayer(defaultLayer, layer);
}
}
public void UpdateLayerFromPart(HEU_SessionBase session, HEU_PartData part)
{
HEU_GeoNode geoNode = part.ParentGeoNode;
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
bool bResult = session.GetVolumeInfo(geoNode.GeoID, part.PartID, ref volumeInfo);
if (!bResult || volumeInfo.tupleSize != 1 || volumeInfo.zLength != 1 || volumeInfo.storage != HAPI_StorageType.HAPI_STORAGETYPE_FLOAT)
{
return;
}
string volumeName = HEU_SessionManager.GetString(volumeInfo.nameSH, session);
part.SetVolumeLayerName(volumeName);
//Debug.LogFormat("Part name: {0}, GeoName: {1}, Volume Name: {2}, Display: {3}", part.PartName, geoNode.GeoName, volumeName, geoNode.Displayable);
bool bHeightPart = volumeName.Equals("height");
HEU_VolumeLayer layer = GetLayer(volumeName);
if (layer == null)
{
layer = new HEU_VolumeLayer();
layer._layerName = volumeName;
if (bHeightPart)
{
_layers.Insert(0, layer);
}
else
{
_layers.Add(layer);
}
}
layer._part = part;
GetPartLayerAttributes(session, geoNode.GeoID, part.PartID, layer);
if (!bHeightPart)
{
part.DestroyAllData();
}
if (!_updatedLayers.Contains(layer))
{
if (bHeightPart)
{
_updatedLayers.Insert(0, layer);
}
else
{
_updatedLayers.Add(layer);
}
}
}
public void ResetParameters()
{
_terrainData = null;
_scatterTrees = null;
HEU_VolumeLayer defaultLayer = new HEU_VolumeLayer();
foreach (HEU_VolumeLayer layer in _layers)
{
CopyLayer(defaultLayer, layer);
}
}
public void CopyValuesTo(HEU_VolumeCache destCache)
{
destCache.UIExpanded = UIExpanded;
foreach(HEU_VolumeLayer srcLayer in _layers)
{
HEU_VolumeLayer destLayer = destCache.GetLayer(srcLayer._layerName);
if(destLayer != null)
{
CopyLayer(srcLayer, destLayer);
}
}
}
public void CopyValuesTo(HEU_VolumeCache destCache)
{
destCache.UIExpanded = UIExpanded;
destCache._terrainData = Object.Instantiate(_terrainData);
foreach (HEU_VolumeLayer srcLayer in _layers)
{
HEU_VolumeLayer destLayer = destCache.GetLayer(srcLayer._layerName);
if(destLayer != null)
{
CopyLayer(srcLayer, destLayer);
}
}
}
private void UpdateVolumeLayers(HEU_SessionBase session, HEU_HoudiniAsset houdiniAsset, List<HEU_PartData> volumeParts)
{
bool bResult;
foreach (HEU_PartData part in volumeParts)
{
HEU_GeoNode geoNode = part.ParentGeoNode;
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
bResult = session.GetVolumeInfo(geoNode.GeoID, part.PartID, ref volumeInfo);
if (!bResult || volumeInfo.tupleSize != 1 || volumeInfo.zLength != 1 || volumeInfo.storage != HAPI_StorageType.HAPI_STORAGETYPE_FLOAT)
{
continue;
}
string volumeName = HEU_SessionManager.GetString(volumeInfo.nameSH, session);
part.SetVolumeLayerName(volumeName);
//Debug.LogFormat("Part name: {0}, GeoName: {1}, Volume Name: {2}, Display: {3}", part.PartName, geoNode.GeoName, volumeName, geoNode.Displayable);
bool bHeightPart = volumeName.Equals("height");
HEU_VolumeLayer layer = GetLayer(volumeName);
if (layer == null)
{
layer = new HEU_VolumeLayer();
layer._layerName = volumeName;
layer._splatTexture = LoadDefaultSplatTexture();
if (bHeightPart)
{
_layers.Insert(0, layer);
}
else
{
_layers.Add(layer);
}
}
layer._part = part;
if (!bHeightPart)
{
part.DestroyAllData();
}
}
}
public void CopyValuesTo(HEU_VolumeCache destCache)
{
destCache.UIExpanded = UIExpanded;
foreach(HEU_VolumeLayer srcLayer in _layers)
{
HEU_VolumeLayer destLayer = destCache.GetLayer(srcLayer._layerName);
if(destLayer != null)
{
destLayer._strength = srcLayer._strength;
destLayer._splatTexture = srcLayer._splatTexture;
destLayer._normalTexture = srcLayer._normalTexture;
destLayer._tileSize = srcLayer._tileSize;
destLayer._tileOffset = srcLayer._tileOffset;
destLayer._metallic = srcLayer._metallic;
destLayer._smoothness = srcLayer._smoothness;
destLayer._uiExpanded = srcLayer._uiExpanded;
}
}
}
public static void CopyLayer(HEU_VolumeLayer srcLayer, HEU_VolumeLayer destLayer)
{
destLayer._strength = srcLayer._strength;
destLayer._diffuseTexture = srcLayer._diffuseTexture;
destLayer._maskTexture = srcLayer._maskTexture;
destLayer._metallic = srcLayer._metallic;
destLayer._normalTexture = srcLayer._normalTexture;
destLayer._normalScale = srcLayer._normalScale;
destLayer._smoothness = srcLayer._smoothness;
destLayer._specularColor = srcLayer._specularColor;
destLayer._tileSize = srcLayer._tileSize;
destLayer._tileOffset = srcLayer._tileOffset;
destLayer._uiExpanded = srcLayer._uiExpanded;
destLayer._tile = srcLayer._tile;
destLayer._overrides = srcLayer._overrides;
}
public static void CopyLayer(HEU_VolumeLayer srcLayer, HEU_VolumeLayer destLayer)
{
destLayer._strength = srcLayer._strength;
destLayer._uiExpanded = srcLayer._uiExpanded;
destLayer._tile = srcLayer._tile;
destLayer._xLength = srcLayer._xLength;
destLayer._yLength = srcLayer._yLength;
destLayer._layerType = srcLayer._layerType;
if (srcLayer._detailPrototype != null)
{
if (destLayer._detailPrototype == null)
{
destLayer._detailPrototype = new HEU_DetailPrototype();
}
CopyPrototype(srcLayer._detailPrototype, destLayer._detailPrototype);
}
else
{
destLayer._detailPrototype = null;
}
}
public static void CopyLayer(HEU_VolumeLayer srcLayer, HEU_VolumeLayer destLayer)
{
destLayer._strength = srcLayer._strength;
destLayer._uiExpanded = srcLayer._uiExpanded;
destLayer._tile = srcLayer._tile;
}
public static bool IsLayerFieldOverriden(HEU_VolumeLayer layer, HEU_VolumeLayer.Overrides field)
{
return (layer._overrides & field) == field;
}
public void GenerateTerrainWithAlphamaps(HEU_SessionBase session, HEU_HoudiniAsset houdiniAsset)
{
if(_layers == null || _layers.Count == 0)
{
Debug.LogError("Unable to generate terrain due to lack of heightfield layers!");
return;
}
HEU_VolumeLayer baseLayer = _layers[0];
HAPI_VolumeInfo baseVolumeInfo = new HAPI_VolumeInfo();
bool bResult = session.GetVolumeInfo(_ownerNode.GeoID, baseLayer._part.PartID, ref baseVolumeInfo);
if (!bResult)
{
Debug.LogErrorFormat("Unable to get volume info for layer {0}!", baseLayer._layerName);
return;
}
TerrainData terrainData = null;
Vector3 terrainOffsetPosition = Vector3.zero;
// Generate the terrain and terrain data from the heightmap's height layer
bResult = HEU_GeometryUtility.GenerateTerrainFromVolume(session, ref baseVolumeInfo, baseLayer._part.ParentGeoNode.GeoID,
baseLayer._part.PartID, baseLayer._part.OutputGameObject, out terrainData, out terrainOffsetPosition);
if (!bResult)
{
return;
}
baseLayer._part.SetTerrainData(terrainData);
baseLayer._part.SetTerrainOffsetPosition(terrainOffsetPosition);
int terrainSize = terrainData.heightmapResolution;
// Now set the alphamaps (textures with masks) for the other layers
// First, preprocess all layers to get heightfield arrays, converted to proper size
// Then, merge into a float[x,y,map]
List<float[]> heightFields = new List<float[]>();
List<HEU_VolumeLayer> validLayers = new List<HEU_VolumeLayer>();
int numLayers = _layers.Count;
for(int i = 1; i < numLayers; ++i)
{
float[] hf = HEU_GeometryUtility.GetHeightfieldFromPart(session, _ownerNode.GeoID, _layers[i]._part.PartID, _layers[i]._part.PartName, terrainSize);
if (hf != null && hf.Length > 0)
{
heightFields.Add(hf);
validLayers.Add(_layers[i]);
}
}
// Total maps is masks plus base height layer
int numMaps = heightFields.Count + 1;
// Assign floats to alpha map
float[,,] alphamap = new float[terrainSize, terrainSize, numMaps];
for (int y = 0; y < terrainSize; ++y)
{
for (int x = 0; x < terrainSize; ++x)
{
float f = 0f;
for (int m = numMaps - 1; m > 0; --m)
{
float a = heightFields[m - 1][y + terrainSize * x];
a = Mathf.Clamp01(a - f) * validLayers[m - 1]._strength;
alphamap[x, y, m] = a;
f += a;
}
// Base layer gets leftover value
alphamap[x, y, 0] = Mathf.Clamp01(1.0f - f) * baseLayer._strength;
}
}
#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[numMaps];
for (int m = 0; m < numMaps; ++m)
{
terrainLayers[m] = new TerrainLayer();
HEU_VolumeLayer layer = (m == 0) ? baseLayer : validLayers[m - 1];
terrainLayers[m].diffuseTexture = layer._diffuseTexture;
terrainLayers[m].diffuseRemapMin = Vector4.zero;
terrainLayers[m].diffuseRemapMax = Vector4.one;
terrainLayers[m].maskMapTexture = layer._maskTexture;
terrainLayers[m].maskMapRemapMin = Vector4.zero;
terrainLayers[m].maskMapRemapMax = Vector4.one;
terrainLayers[m].metallic = layer._metallic;
terrainLayers[m].normalMapTexture = layer._normalTexture;
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)
{
// Use texture size if tile size is 0
layer._tileSize = new Vector2(layer._diffuseTexture.width, layer._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[numMaps];
for (int m = 0; m < numMaps; ++m)
{
splatPrototypes[m] = new SplatPrototype();
HEU_VolumeLayer layer = (m == 0) ? baseLayer : validLayers[m - 1];
splatPrototypes[m].texture = layer._diffuseTexture;
splatPrototypes[m].tileOffset = layer._tileOffset;
if(layer._tileSize.magnitude == 0f)
{
// Use texture size if tile size is 0
layer._tileSize = new Vector2(layer._diffuseTexture.width, layer._diffuseTexture.height);
}
splatPrototypes[m].tileSize = layer._tileSize;
splatPrototypes[m].metallic = layer._metallic;
splatPrototypes[m].smoothness = layer._smoothness;
splatPrototypes[m].normalMap = layer._normalTexture;
}
terrainData.splatPrototypes = splatPrototypes;
#endif
terrainData.SetAlphamaps(0, 0, alphamap);
}
private void GetPartLayerAttributes(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_NodeId partID, HEU_VolumeLayer layer)
{
// Get the tile index, if it exists, for this part
HAPI_AttributeInfo tileAttrInfo = new HAPI_AttributeInfo();
int[] tileAttrData = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_Defines.HAPI_HEIGHTFIELD_TILE_ATTR, ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData);
if (tileAttrData != null && tileAttrData.Length > 0)
{
layer._tile = tileAttrData[0];
//Debug.LogFormat("Tile: {0}", tileAttrData[0]);
}
else
{
layer._tile = 0;
}
string[] layerAttrNames =
{
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_DIFFUSE_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_MASK_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_NORMAL_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_NORMAL_SCALE_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_METALLIC_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SMOOTHNESS_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SPECULAR_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_OFFSET_ATTR,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_SIZE_ATTR
};
// Check if any of the layer attribute names show up in the existing primitive attributes
layer._hasLayerAttributes = false;
HAPI_AttributeInfo attrInfo = new HAPI_AttributeInfo();
bool bResult = false;
foreach (string layerAttr in layerAttrNames)
{
bResult = session.GetAttributeInfo(geoID, partID, layerAttr, HAPI_AttributeOwner.HAPI_ATTROWNER_PRIM, ref attrInfo);
if (bResult && attrInfo.exists)
{
layer._hasLayerAttributes = true;
break;
}
}
}
public void UpdateLayerFromPart(HEU_SessionBase session, HEU_PartData part)
{
HEU_GeoNode geoNode = part.ParentGeoNode;
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
bool bResult = session.GetVolumeInfo(geoNode.GeoID, part.PartID, ref volumeInfo);
if (!bResult || volumeInfo.tupleSize != 1 || volumeInfo.zLength != 1 || volumeInfo.storage != HAPI_StorageType.HAPI_STORAGETYPE_FLOAT)
{
return;
}
string volumeName = HEU_SessionManager.GetString(volumeInfo.nameSH, session);
part.SetVolumeLayerName(volumeName);
//Debug.LogFormat("Part name: {0}, GeoName: {1}, Volume Name: {2}, Display: {3}", part.PartName, geoNode.GeoName, volumeName, geoNode.Displayable);
bool bHeightPart = volumeName.Equals(HEU_Defines.HAPI_HEIGHTFIELD_LAYERNAME_HEIGHT);
bool bMaskPart = volumeName.Equals(HEU_Defines.HAPI_HEIGHTFIELD_LAYERNAME_MASK);
HEU_VolumeLayer layer = GetLayer(volumeName);
if (layer == null)
{
layer = new HEU_VolumeLayer();
layer._layerName = volumeName;
if (bHeightPart)
{
_layers.Insert(0, layer);
}
else if(!bMaskPart)
{
_layers.Add(layer);
}
}
layer._part = part;
layer._xLength = volumeInfo.xLength;
layer._yLength = volumeInfo.yLength;
if (!bMaskPart)
{
GetPartLayerAttributes(session, geoNode.GeoID, part.PartID, layer);
}
if (!bHeightPart)
{
// Non-height parts don't have any outputs as they are simply layers carrying info
part.DestroyAllData();
}
else
{
// Height part
List<HEU_TreePrototypeInfo> treePrototypeInfos = HEU_TerrainUtility.GetTreePrototypeInfosFromPart(session, geoNode.GeoID, part.PartID);
if (treePrototypeInfos != null)
{
if (_scatterTrees == null)
{
_scatterTrees = new HEU_VolumeScatterTrees();
}
_scatterTrees._treePrototypInfos = treePrototypeInfos;
}
}
if (!_updatedLayers.Contains(layer))
{
if (bHeightPart)
{
_updatedLayers.Insert(0, layer);
}
else if (!bMaskPart)
{
_updatedLayers.Add(layer);
}
}
}
public void ProcessVolumeParts(HEU_SessionBase session, List <HEU_PartData> volumeParts, bool bRebuild)
{
int numVolumeParts = volumeParts.Count;
if (numVolumeParts == 0)
{
DestroyVolumeCache();
}
else if (_volumeCaches == null)
{
_volumeCaches = new List <HEU_VolumeCache>();
}
// First update volume caches. Each volume cache represents a set of terrain layers grouped by tile index.
// Therefore each volume cache represents a potential Unity Terrain (containing layers)
_volumeCaches = HEU_VolumeCache.UpdateVolumeCachesFromParts(session, this, volumeParts, _volumeCaches);
// Heightfield scatter nodes come in as mesh-type parts with attribute instancing.
// So process them here to get all the tree/detail instance scatter information.
int numParts = _parts.Count;
for (int i = 0; i < numParts; ++i)
{
// Find the terrain tile (use primitive attr). Assume 0 tile if not set (i.e. not split into tiles)
int terrainTile = 0;
HAPI_AttributeInfo tileAttrInfo = new HAPI_AttributeInfo();
int[] tileAttrData = new int[0];
if (HEU_GeneralUtility.GetAttribute(session, GeoID, _parts[i].PartID, HEU_Defines.HAPI_HEIGHTFIELD_TILE_ATTR, ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData))
{
if (tileAttrData != null && tileAttrData.Length > 0)
{
terrainTile = tileAttrData[0];
}
}
// Find the volumecache associated with this part using the terrain tile index
HEU_VolumeCache volumeCache = GetVolumeCacheByTileIndex(terrainTile);
if (volumeCache == null)
{
continue;
}
HEU_VolumeLayer volumeLayer = volumeCache.GetLayer(_parts[i].GetVolumeLayerName());
if (volumeLayer != null && volumeLayer._layerType == HFLayerType.DETAIL)
{
// Clear out outputs since it might have been created when the part was created.
_parts[i].DestroyAllData();
volumeCache.PopulateDetailPrototype(session, GeoID, _parts[i].PartID, volumeLayer);
}
else if (_parts[i].IsAttribInstancer())
{
HAPI_AttributeInfo treeInstAttrInfo = new HAPI_AttributeInfo();
if (HEU_GeneralUtility.GetAttributeInfo(session, GeoID, _parts[i].PartID, HEU_Defines.HEIGHTFIELD_TREEINSTANCE_PROTOTYPEINDEX, ref treeInstAttrInfo))
{
if (treeInstAttrInfo.exists && treeInstAttrInfo.count > 0)
{
// Clear out outputs since it might have been created when the part was created.
_parts[i].DestroyAllData();
// Mark the instancers as having been created so that the object instancer step skips this.
_parts[i].ObjectInstancesBeenGenerated = true;
// Now populate scatter trees based on attributes on this part
volumeCache.PopulateScatterTrees(session, GeoID, _parts[i].PartID, treeInstAttrInfo.count);
}
}
}
}
// Now generate the terrain for each volume cache
foreach (HEU_VolumeCache cache in _volumeCaches)
{
cache.GenerateTerrainWithAlphamaps(session, ParentAsset, bRebuild);
cache.IsDirty = false;
}
}
public void UpdateLayerFromPart(HEU_SessionBase session, HEU_PartData part)
{
HEU_GeoNode geoNode = part.ParentGeoNode;
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
bool bResult = session.GetVolumeInfo(geoNode.GeoID, part.PartID, ref volumeInfo);
if (!bResult || volumeInfo.tupleSize != 1 || volumeInfo.zLength != 1 || volumeInfo.storage != HAPI_StorageType.HAPI_STORAGETYPE_FLOAT)
{
return;
}
string volumeName = HEU_SessionManager.GetString(volumeInfo.nameSH, session);
part.SetVolumeLayerName(volumeName);
//Debug.LogFormat("Part name: {0}, GeoName: {1}, Volume Name: {2}, Display: {3}", part.PartName, geoNode.GeoName, volumeName, geoNode.Displayable);
HFLayerType layerType = HEU_TerrainUtility.GetHeightfieldLayerType(session, geoNode.GeoID, part.PartID, volumeName);
HEU_VolumeLayer layer = GetLayer(volumeName);
if (layer == null)
{
layer = new HEU_VolumeLayer();
layer._layerName = volumeName;
if (layerType == HFLayerType.HEIGHT)
{
_layers.Insert(0, layer);
}
else if (layerType != HFLayerType.MASK)
{
_layers.Add(layer);
}
}
layer._part = part;
layer._xLength = volumeInfo.xLength;
layer._yLength = volumeInfo.yLength;
layer._layerType = layerType;
if (layerType != HFLayerType.MASK)
{
GetPartLayerAttributes(session, geoNode.GeoID, part.PartID, layer);
}
if (layerType != HFLayerType.HEIGHT)
{
// Non-height parts don't have any outputs as they are simply layers carrying info
part.DestroyAllData();
}
else
{
// Height part
// Might contain terrain properties via attributes (i.e. not layer specific, but for entire terrain)
// Scatter Tree Prototypes
List<HEU_TreePrototypeInfo> treePrototypeInfos = HEU_TerrainUtility.GetTreePrototypeInfosFromPart(session, geoNode.GeoID, part.PartID);
if (treePrototypeInfos != null)
{
if (_scatterTrees == null)
{
_scatterTrees = new HEU_VolumeScatterTrees();
}
_scatterTrees._treePrototypInfos = treePrototypeInfos;
}
HEU_TerrainUtility.PopulateDetailProperties(session, geoNode.GeoID,
part.PartID, ref _detailProperties);
}
if (!_updatedLayers.Contains(layer))
{
if (layerType == HFLayerType.HEIGHT)
{
_updatedLayers.Insert(0, layer);
}
else if (layerType != HFLayerType.MASK)
{
_updatedLayers.Add(layer);
}
}
}
public void PopulateDetailPrototype(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_PartId partID,
HEU_VolumeLayer layer)
{
HEU_TerrainUtility.PopulateDetailPrototype(session, geoID, partID, ref layer._detailPrototype);
}
private void GetPartLayerAttributes(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_NodeId partID, HEU_VolumeLayer layer)
{
// Get the tile index, if it exists, for this part
HAPI_AttributeInfo tileAttrInfo = new HAPI_AttributeInfo();
int[] tileAttrData = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, HEU_Defines.HAPI_HEIGHTFIELD_TILE_ATTR, ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData);
if (tileAttrData != null && tileAttrData.Length > 0)
{
layer._tile = tileAttrData[0];
//Debug.LogFormat("Tile: {0}", tileAttrData[0]);
}
else
{
layer._tile = 0;
}
layer._hasLayerAttributes = HEU_TerrainUtility.VolumeLayerHasAttributes(session, geoID, partID);
}
private void GetPartLayerAttributes(HEU_SessionBase session, HAPI_NodeId geoID, HAPI_NodeId partID, HEU_VolumeLayer layer)
{
// Get the tile index, if it exists, for this part
HAPI_AttributeInfo tileAttrInfo = new HAPI_AttributeInfo();
int[] tileAttrData = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoID, partID, "tile", ref tileAttrInfo, ref tileAttrData, session.GetAttributeIntData);
if (tileAttrData != null && tileAttrData.Length > 0)
{
layer._tile = tileAttrData[0];
//Debug.LogFormat("Tile: {0}", tileAttrData[0]);
}
else
{
layer._tile = 0;
}
// Get the layer textures, and other layer values from attributes
Texture2D defaultTexture = LoadDefaultSplatTexture();
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Diffuse) && (layer._diffuseTexture == null || layer._diffuseTexture == defaultTexture))
{
layer._diffuseTexture = LoadLayerTextureFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_DIFFUSE_ATTR);
if (layer._diffuseTexture == null)
{
layer._diffuseTexture = defaultTexture;
}
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Mask) && layer._maskTexture == null)
{
layer._maskTexture = LoadLayerTextureFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_MASK_ATTR);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Normal) && layer._normalTexture == null)
{
layer._normalTexture = LoadLayerTextureFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TEXTURE_NORMAL_ATTR);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.NormalScale))
{
LoadLayerFloatFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_NORMAL_SCALE_ATTR, ref layer._normalScale);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Metallic))
{
LoadLayerFloatFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_METALLIC_ATTR, ref layer._metallic);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Smoothness))
{
LoadLayerFloatFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SMOOTHNESS_ATTR, ref layer._smoothness);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.Specular))
{
LoadLayerColorFromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_SPECULAR_ATTR, ref layer._specularColor);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.TileOffset))
{
LoadLayerVector2FromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_OFFSET_ATTR, ref layer._tileOffset);
}
if (!IsLayerFieldOverriden(layer, HEU_VolumeLayer.Overrides.TileSize))
{
LoadLayerVector2FromAttribute(session, geoID, partID, HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TILE_SIZE_ATTR, ref layer._tileSize);
}
}
public void GenerateTerrainWithAlphamaps(HEU_SessionBase session, HEU_HoudiniAsset houdiniAsset, bool bRebuild)
{
if(_layers == null || _layers.Count == 0)
{
Debug.LogError("Unable to generate terrain due to lack of heightfield layers!");
return;
}
HEU_VolumeLayer heightLayer = _layers[0];
HAPI_VolumeInfo heightVolumeInfo = new HAPI_VolumeInfo();
bool bResult = session.GetVolumeInfo(_ownerNode.GeoID, heightLayer._part.PartID, ref heightVolumeInfo);
if (!bResult)
{
Debug.LogErrorFormat("Unable to get volume info for height layer: {0}!", heightLayer._layerName);
return;
}
// Special handling of volume cache presets. It is applied here (if exists) because it might pertain to TerrainData that exists
// in the AssetDatabase. If we don't apply here but rather create a new one, the existing file will get overwritten.
// Applying the preset here for terrain ensures the TerrainData is reused.
// Get the volume preset for this part
HEU_VolumeCachePreset volumeCachePreset = houdiniAsset.GetVolumeCachePreset(_ownerNode.ObjectNode.ObjectName, _ownerNode.GeoName, TileIndex);
if (volumeCachePreset != null)
{
ApplyPreset(volumeCachePreset);
// Remove it so that it doesn't get applied when doing the recook step
houdiniAsset.RemoveVolumeCachePreset(volumeCachePreset);
}
// The TerrainData and TerrainLayer files needs to be saved out if we create them. This creates the relative folder
// path from the Asset's cache folder: {assetCache}/{geo name}/Terrain/Tile{tileIndex}/...
string relativeFolderPath = HEU_Platform.BuildPath(_ownerNode.GeoName, HEU_Defines.HEU_FOLDER_TERRAIN, HEU_Defines.HEU_FOLDER_TILE + TileIndex);
if (bRebuild)
{
// For full rebuild, re-create the TerrainData instead of using previous
_terrainData = null;
}
//Debug.Log("Generating Terrain with AlphaMaps: " + (_terrainData != null ? _terrainData.name : "NONE"));
TerrainData terrainData = _terrainData;
Vector3 terrainOffsetPosition = Vector3.zero;
// Look up TerrainData file via attribute if user has set it
string terrainDataFile = HEU_GeneralUtility.GetAttributeStringValueSingle(session, _ownerNode.GeoID, heightLayer._part.PartID,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TERRAINDATA_FILE_ATTR, HAPI_AttributeOwner.HAPI_ATTROWNER_PRIM);
if (!string.IsNullOrEmpty(terrainDataFile))
{
TerrainData loadedTerrainData = HEU_AssetDatabase.LoadAssetAtPath(terrainDataFile, typeof(TerrainData)) as TerrainData;
if (loadedTerrainData == null)
{
Debug.LogWarningFormat("TerrainData, set via attribute, not found at: {0}", terrainDataFile);
}
else
{
// In the case that the specified TerrainData belongs to another Terrain (i.e. input Terrain),
// make a copy of it and store it in our cache. Note that this overwrites existing TerrainData in our cache
// because the workflow is such that attributes will always override local setting.
string bakedTerrainPath = houdiniAsset.GetValidAssetCacheFolderPath();
bakedTerrainPath = HEU_Platform.BuildPath(bakedTerrainPath, relativeFolderPath);
terrainData = HEU_AssetDatabase.CopyAndLoadAssetAtAnyPath(loadedTerrainData, bakedTerrainPath, typeof(TerrainData), true) as TerrainData;
if (terrainData == null)
{
Debug.LogErrorFormat("Unable to copy TerrainData from {0} for generating Terrain.", terrainDataFile);
}
}
}
// Generate the terrain and terrain data from the height layer. This applies height values.
bResult = HEU_TerrainUtility.GenerateTerrainFromVolume(session, ref heightVolumeInfo, heightLayer._part.ParentGeoNode.GeoID,
heightLayer._part.PartID, heightLayer._part.OutputGameObject, ref terrainData, out terrainOffsetPosition);
if (!bResult || terrainData == null)
{
return;
}
if (_terrainData != terrainData)
{
_terrainData = terrainData;
heightLayer._part.SetTerrainData(terrainData, relativeFolderPath);
}
heightLayer._part.SetTerrainOffsetPosition(terrainOffsetPosition);
int terrainSize = terrainData.heightmapResolution;
// Now process TerrainLayers and alpha maps
// First, preprocess all layers to get heightfield arrays, converted to proper size
List<float[]> heightFields = new List<float[]>();
// Corresponding list of HF volume layers to process as splatmaps
List<HEU_VolumeLayer> volumeLayersToProcess = new List<HEU_VolumeLayer>();
int numLayers = _layers.Count;
float minHeight = 0;
float maxHeight = 0;
float heightRange = 0;
// This skips the height layer, and processes all other layers.
// Note that mask shouldn't be part of _layers at this point.
for(int i = 1; i < numLayers; ++i)
{
float[] normalizedHF = HEU_TerrainUtility.GetNormalizedHeightmapFromPartWithMinMax(session, _ownerNode.GeoID, _layers[i]._part.PartID,
_layers[i]._xLength, _layers[i]._yLength, ref minHeight, ref maxHeight, ref heightRange);
if (normalizedHF != null && normalizedHF.Length > 0)
{
heightFields.Add(normalizedHF);
volumeLayersToProcess.Add(_layers[i]);
}
}
int numVolumeLayers = volumeLayersToProcess.Count;
HAPI_NodeId geoID;
HAPI_PartId partID;
Texture2D defaultTexture = LoadDefaultSplatTexture();
#if UNITY_2018_3_OR_NEWER
// Create or update the terrain layers based on heightfield layers.
// 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);
// This holds the alpha map indices for each layer that will be added to the TerrainData.
// The alpha maps could be a mix of existing and new values, so need to know which to use
// Initially set to use existing alpha maps, then override later on if specified via HF layers
List<int> alphaMapIndices = new List<int>();
for (int a = 0; a < existingTerrainLayers.Length; ++a)
{
// Negative indices for existing alpha map (offset by -1)
alphaMapIndices.Add(-a - 1);
}
bool bNewTerrainLayer = false;
HEU_VolumeLayer layer = null;
TerrainLayer terrainLayer = null;
bool bSetTerrainLayerProperties = true;
for (int m = 0; m < numVolumeLayers; ++m)
{
bNewTerrainLayer = false;
bSetTerrainLayerProperties = true;
layer = volumeLayersToProcess[m];
geoID = _ownerNode.GeoID;
partID = layer._part.PartID;
terrainLayer = null;
int terrainLayerIndex = -1;
// The TerrainLayer attribute overrides existing TerrainLayer. So if its set, load and use it.
string terrainLayerFile = HEU_GeneralUtility.GetAttributeStringValueSingle(session, geoID, partID,
HEU_Defines.DEFAULT_UNITY_HEIGHTFIELD_TERRAINLAYER_FILE_ATTR, HAPI_AttributeOwner.HAPI_ATTROWNER_PRIM);
if (!string.IsNullOrEmpty(terrainLayerFile))
{
terrainLayer = HEU_AssetDatabase.LoadAssetAtPath(terrainLayerFile, typeof(TerrainLayer)) as TerrainLayer;
if (terrainLayer == null)
{
Debug.LogWarningFormat("TerrainLayer, set via attribute, not found at: {0}", terrainLayerFile);
// Not earlying out or skipping this layer due to error because we want to keep proper indexing
// by creating a new TerrainLayer.
}
else
{
// TerrainLayer loaded from attribute.
// It could be an existing TerrainLayer that is already part of finalTerrainLayers
// or could be a new one which needs to be added.
// If its a different TerrainLayer than existing, update the finalTerrainLayers, and index.
if (layer._terrainLayer != null && layer._terrainLayer != terrainLayer)
{
terrainLayerIndex = HEU_TerrainUtility.GetTerrainLayerIndex(layer._terrainLayer, existingTerrainLayers);
if (terrainLayerIndex >= 0)
{
finalTerrainLayers[terrainLayerIndex] = terrainLayer;
}
}
if (terrainLayerIndex == -1)
{
// Always check if its part of existing list so as not to add it again
terrainLayerIndex = HEU_TerrainUtility.GetTerrainLayerIndex(terrainLayer, existingTerrainLayers);
}
}
}
// No terrain layer specified, so try using existing if we have it
if (terrainLayer == null)
{
terrainLayerIndex = HEU_TerrainUtility.GetTerrainLayerIndex(layer._terrainLayer, existingTerrainLayers);
if (terrainLayerIndex >= 0)
{
// Note the terrainLayerIndex is same for finalTerrainLayers as existingTerrainLayers
terrainLayer = existingTerrainLayers[terrainLayerIndex];
}
}
// Still not found, so just create a new one
if (terrainLayer == null)
{
terrainLayer = new TerrainLayer();
terrainLayer.name = layer._layerName;
//Debug.LogFormat("Created new TerrainLayer with name: {0} ", terrainLayer.name);
bNewTerrainLayer = true;
}
if (terrainLayerIndex == -1)
{
// Adding to the finalTerrainLayers if this is indeed a newly created or loaded TerrainLayer
// (i.e. isn't already part of the TerrainLayers for this Terrain).
// Save this layer's index for later on if we make a copy.
terrainLayerIndex = finalTerrainLayers.Count;
finalTerrainLayers.Add(terrainLayer);
// Positive index for alpha map from heightfield (starting at 1)
alphaMapIndices.Add(m + 1);
}
else
{
// Positive index for alpha map from heightfield (starting at 1)
alphaMapIndices[terrainLayerIndex] = m + 1;
}
// 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 (!bNewTerrainLayer && layer._hasLayerAttributes)
{
string bakedTerrainPath = houdiniAsset.GetValidAssetCacheFolderPath();
bakedTerrainPath = HEU_Platform.BuildPath(bakedTerrainPath, relativeFolderPath);
TerrainLayer prevTerrainLayer = terrainLayer;
terrainLayer = HEU_AssetDatabase.CopyAndLoadAssetAtAnyPath(terrainLayer, bakedTerrainPath, typeof(TerrainLayer), true) as TerrainLayer;
if (terrainLayer != null)
{
// Update the TerrainLayer reference in the list with this copy
finalTerrainLayers[terrainLayerIndex] = 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.
}
}
// Now override layer properties if they have been set via attributes
if (bSetTerrainLayerProperties)
{
LoadLayerPropertiesFromAttributes(session, geoID, partID, terrainLayer, bNewTerrainLayer, defaultTexture);
}
if (bNewTerrainLayer)
{
// In order to retain the new TerrainLayer, it must be saved to the AssetDatabase.
Object savedObject = null;
string layerFileNameWithExt = terrainLayer.name;
if (!layerFileNameWithExt.EndsWith(HEU_Defines.HEU_EXT_TERRAINLAYER))
{
layerFileNameWithExt += HEU_Defines.HEU_EXT_TERRAINLAYER;
}
houdiniAsset.AddToAssetDBCache(layerFileNameWithExt, terrainLayer, relativeFolderPath, ref savedObject);
}
// Store reference
layer._terrainLayer = terrainLayer;
}
// Get existing alpha maps so we can reuse the values if needed
float[,,] existingAlphaMaps = terrainData.GetAlphamaps(0, 0, terrainData.alphamapWidth, terrainData.alphamapHeight);
terrainData.terrainLayers = finalTerrainLayers.ToArray();
int numTotalAlphaMaps = finalTerrainLayers.Count;
#else
// Create or update the SplatPrototype based on heightfield layers.
// Need to create or reuse SplatPrototype for each layer in heightfield, representing the textures.
SplatPrototype[] existingSplats = terrainData.splatPrototypes;
// A full rebuild clears out existing splats, but a regular cook keeps them.
List<SplatPrototype> finalSplats = new List<SplatPrototype>(existingSplats);
// This holds the alpha map indices for each layer that will be added to the TerrainData
// The alpha maps could be a mix of existing and new values, so need to know which to use
List<int> alphaMapIndices = new List<int>();
// Initially set to use existing alpha maps, then override later on if specified via HF layers.
for (int a = 0; a < existingSplats.Length; ++a)
{
// Negative indices for existing alpha map (offset by -1)
alphaMapIndices.Add(-a - 1);
}
bool bNewSplat = false;
HEU_VolumeLayer layer = null;
SplatPrototype splatPrototype = null;
for (int m = 0; m < numVolumeLayers; ++m)
{
bNewSplat = false;
layer = volumeLayersToProcess[m];
geoID = _ownerNode.GeoID;
partID = layer._part.PartID;
// Try to find existing SplatPrototype for reuse. But not for full rebuild.
splatPrototype = null;
if (layer._splatPrototypeIndex >= 0 && layer._splatPrototypeIndex < existingSplats.Length)
{
splatPrototype = existingSplats[layer._splatPrototypeIndex];
// Positive index for alpha map from heightfield (starting at 1)
alphaMapIndices[layer._splatPrototypeIndex] = m + 1;
}
if (splatPrototype == null)
{
splatPrototype = new SplatPrototype();
layer._splatPrototypeIndex = finalSplats.Count;
finalSplats.Add(splatPrototype);
// Positive index for alpha map from heightfield (starting at 1)
alphaMapIndices.Add(m + 1);
}
// Now override splat properties if they have been set via attributes
LoadLayerPropertiesFromAttributes(session, geoID, partID, splatPrototype, bNewSplat, defaultTexture);
}
// On regular cook, get existing alpha maps so we can reuse the values if needed.
float[,,] existingAlphaMaps = terrainData.GetAlphamaps(0, 0, terrainData.alphamapWidth, terrainData.alphamapHeight);
terrainData.splatPrototypes = finalSplats.ToArray();
int numTotalAlphaMaps = finalSplats.Count;
#endif
// Set alpha maps by combining with existing alpha maps, and appending new heightfields
float[,,] alphamap = null;
if (numTotalAlphaMaps > 0 && volumeLayersToProcess.Count > 0)
{
// Convert the heightfields into alpha maps with layer strengths
float[] strengths = new float[volumeLayersToProcess.Count];
for (int m = 0; m < volumeLayersToProcess.Count; ++m)
{
strengths[m] = volumeLayersToProcess[m]._strength;
}
alphamap = HEU_TerrainUtility.AppendConvertedHeightFieldToAlphaMap(
volumeLayersToProcess[0]._xLength, volumeLayersToProcess[0]._yLength, existingAlphaMaps,
heightFields, strengths, alphaMapIndices);
// Update the alphamap resolution to the actual size of the first
// heightfield layer used for the alphamaps.
// Setting the size before setting the alphamas applies proper scaling.
int alphamapResolution = volumeLayersToProcess[0]._xLength;
terrainData.alphamapResolution = alphamapResolution;
terrainData.SetAlphamaps(0, 0, alphamap);
}
// Tree instances for scattering
HEU_TerrainUtility.ApplyScatter(terrainData, _scatterTrees);
// If the layers were writen out, this saves the asset DB. Otherwise user has to save it themselves.
// Not 100% sure this is needed, but without this the editor doesn't know the terrain asset has been updated
// and therefore doesn't import and show the terrain layer.
HEU_AssetDatabase.SaveAssetDatabase();
}
public void UpdateLayerFromPart(HEU_SessionBase session, HEU_PartData part)
{
HEU_GeoNode geoNode = part.ParentGeoNode;
HAPI_VolumeInfo volumeInfo = new HAPI_VolumeInfo();
bool bResult = session.GetVolumeInfo(geoNode.GeoID, part.PartID, ref volumeInfo);
if (!bResult || volumeInfo.tupleSize != 1 || volumeInfo.zLength != 1 || volumeInfo.storage != HAPI_StorageType.HAPI_STORAGETYPE_FLOAT)
{
return;
}
string volumeName = HEU_SessionManager.GetString(volumeInfo.nameSH, session);
part.SetVolumeLayerName(volumeName);
//Debug.LogFormat("Part name: {0}, GeoName: {1}, Volume Name: {2}, Display: {3}", part.PartName, geoNode.GeoName, volumeName, geoNode.Displayable);
HEU_VolumeLayer.HFLayerType layerType = GetHeightfieldLayerType(session, geoNode.GeoID, part.PartID, volumeName);
HEU_VolumeLayer layer = GetLayer(volumeName);
if (layer == null)
{
layer = new HEU_VolumeLayer();
layer._layerName = volumeName;
if (layerType == HEU_VolumeLayer.HFLayerType.HEIGHT)
{
_layers.Insert(0, layer);
}
else if(layerType != HEU_VolumeLayer.HFLayerType.MASK)
{
_layers.Add(layer);
}
}
layer._part = part;
layer._xLength = volumeInfo.xLength;
layer._yLength = volumeInfo.yLength;
layer._layerType = layerType;
if (layerType != HEU_VolumeLayer.HFLayerType.MASK)
{
GetPartLayerAttributes(session, geoNode.GeoID, part.PartID, layer);
}
if (layerType != HEU_VolumeLayer.HFLayerType.HEIGHT)
{
// Non-height parts don't have any outputs as they are simply layers carrying info
part.DestroyAllData();
}
else
{
// Height part
// Might contain terrain properties via attributes (i.e. not layer specific, but for entire terrain)
// Scatter Tree Prototypes
List<HEU_TreePrototypeInfo> treePrototypeInfos = HEU_TerrainUtility.GetTreePrototypeInfosFromPart(session, geoNode.GeoID, part.PartID);
if (treePrototypeInfos != null)
{
if (_scatterTrees == null)
{
_scatterTrees = new HEU_VolumeScatterTrees();
}
_scatterTrees._treePrototypInfos = treePrototypeInfos;
}
// Detail distance
HAPI_AttributeInfo detailDistanceAttrInfo = new HAPI_AttributeInfo();
int[] detailDistances = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoNode.GeoID, part.PartID,
HEU_Defines.HEIGHTFIELD_DETAIL_DISTANCE, ref detailDistanceAttrInfo, ref detailDistances,
session.GetAttributeIntData);
// Scatter Detail Resolution Per Patch (note that Detail Resolution comes from HF layer size)
HAPI_AttributeInfo resolutionPatchAttrInfo = new HAPI_AttributeInfo();
int[] resolutionPatches = new int[0];
HEU_GeneralUtility.GetAttribute(session, geoNode.GeoID, part.PartID,
HEU_Defines.HEIGHTFIELD_DETAIL_RESOLUTION_PER_PATCH, ref resolutionPatchAttrInfo,
ref resolutionPatches, session.GetAttributeIntData);
if (_detailProperties == null)
{
_detailProperties = new HEU_DetailProperties();
}
// Unity only supports 1 set of detail resolution properties per terrain
int arraySize = 1;
if (detailDistanceAttrInfo.exists && detailDistances.Length >= arraySize)
{
_detailProperties._detailDistance = detailDistances[0];
}
if (resolutionPatchAttrInfo.exists && resolutionPatches.Length >= arraySize)
{
_detailProperties._detailResolutionPerPatch = resolutionPatches[0];
}
}
if (!_updatedLayers.Contains(layer))
{
if (layerType == HEU_VolumeLayer.HFLayerType.HEIGHT)
{
_updatedLayers.Insert(0, layer);
}
else if (layerType != HEU_VolumeLayer.HFLayerType.MASK)
{
_updatedLayers.Add(layer);
}
}
}
