/// <summary>
/// Creates prefabs for the 3D Scatter assets.
/// </summary>
/// <param name="hasBillboard"></param>
/// <returns></returns>
public static void CreatePrefabsScatter(PrefabData prefabData)
{
try
{
string prefabPath = MegascansUtilities.ValidateFolderCreate(prefabData.assetPath, "Prefabs");
int numberOfVariations = MegascansUtilities.GetMeshChildrenCount(prefabData.importedGeometryPaths3D);
List <GameObject> prefabObjects = new List <GameObject>();
for (int i = 0; i < numberOfVariations; i++)
{
string prefabName = prefabData.finalAssetName.Replace("$mapName", "").Replace("$resolution", "").Replace("$lod", "").Replace("$variation", "");
string varName = "Var" + (i + 1).ToString();
prefabName = prefabName.Contains("$variation") ? prefabName.Replace("$variation", "Var" + varName) : prefabName + varName;
//Setting up prefab gameobject
GameObject prefabGameObject = new GameObject();
prefabGameObject.name = prefabName;
prefabGameObject.isStatic = true;
if (prefabData.setupLODs)
{
prefabGameObject.AddComponent <LODGroup>();
prefabGameObject.GetComponent <LODGroup>().fadeMode = (LODFadeMode)prefabData.lodFadeMode; //Casting lod fade mode to enum.
prefabGameObject.GetComponent <LODGroup>().animateCrossFading = true;
}
List <LOD> lodsForPrefab = new List <LOD>();
int numberOfFiles = prefabData.importedGeometryPaths3D.Count;
List <float> lodHeights = MegascansUtilities.getLODHeightList(numberOfFiles);
//Instantiate all the meshes in the scene, add them to the material/collider to them.
for (int x = 0; (x < numberOfFiles && x < 8); x++)
{
UnityEngine.Object loadedGeometry = AssetDatabase.LoadAssetAtPath <UnityEngine.Object>(prefabData.importedGeometryPaths3D[x]);
//Highpoly mesh check.
if (loadedGeometry.name.ToLower().Contains("highpoly") && !prefabData.highpoly)
{
continue;
}
GameObject geometryObject = Instantiate(loadedGeometry) as GameObject;
Renderer[] r;
if (prefabData.isAlembic) //if the instantiated mesh is an alembic asset.
{
//Get all variations in a LOD
List <Transform> varsInLOD = new List <Transform>();
foreach (Transform var in geometryObject.transform)
{
varsInLOD.Add(var);
}
//Delete all the other variations in the LOD object
for (int y = 0; y < varsInLOD.Count; y++)
{
//If variation does not match one currently being processed.
if (y != i)
{
DestroyImmediate(varsInLOD[y].gameObject);
}
}
//Parent the child gameobject (geometry) to the prefab game object.
geometryObject.transform.parent = prefabGameObject.transform;
geometryObject.transform.localPosition = Vector3.zero;
geometryObject.name = geometryObject.name.Replace("(Clone)", "");
r = geometryObject.GetComponentsInChildren <Renderer>();
}
else//if the instantiated mesh is a scatter type asset.
{
//Get all variations in a LOD
List <Transform> varsInLOD = new List <Transform>();
foreach (Transform var in geometryObject.transform)
{
varsInLOD.Add(var);
}
//Delete all the other variations in the LOD object
for (int y = 0; y < varsInLOD.Count; y++)
{
//If variation does not match one currently being processed.
if (y != i)
{
DestroyImmediate(varsInLOD[y].gameObject);
}
}
//Parent the child gameobject (geometry) to the prefab game object.
geometryObject.transform.parent = prefabGameObject.transform;
geometryObject.transform.localPosition = Vector3.zero;
geometryObject.name = geometryObject.name.Replace("(Clone)", "");
r = geometryObject.GetComponentsInChildren <Renderer>();
}
foreach (Renderer ren in r)
{
ren.material = prefabData.finalMat;
//Apply highpoly material if the mesh was highpoly and highpoly filter is enabled.
if (loadedGeometry.name.ToLower().Contains("highpoly") && prefabData.highpoly)
{
ren.material = prefabData.highpolyMat;
#if UNITY_EDITOR_OSX
ren.material = prefabData.finalMat;
#endif
}
//Apply collision
if (prefabData.setupCollision)
{
ren.gameObject.AddComponent <MeshCollider>().sharedMesh = ren.gameObject.GetComponent <MeshFilter>().sharedMesh;
}
}
if (prefabData.setupLODs)
{
lodsForPrefab.Add(new LOD(lodHeights[0], r));
lodHeights.RemoveAt(0);
}
else
{
break;
}
}
//Set LODs in the LOD group
if (prefabData.setupLODs)
{
prefabGameObject.GetComponent <LODGroup>().SetLODs(lodsForPrefab.ToArray());
prefabGameObject.GetComponent <LODGroup>().RecalculateBounds();
}
//Prefab saving
string prefLocation = prefabPath + "/" + prefabName + ".prefab";
prefLocation = prefLocation.Replace("(Clone)", "");
GameObject prefabObject = SavePrefab(prefabGameObject, prefLocation, prefabData.addAssetToScene);
if (prefabObject)
{
prefabObjects.Add(prefabObject);
}
}
//Setting up variation holder gameobject
GameObject scatterParent = new GameObject(prefabData.assetName);
scatterParent.isStatic = true;
foreach (GameObject variation in prefabObjects)
{
variation.transform.parent = scatterParent.transform;
}
}
catch (Exception ex)
{
Debug.Log("Exception::MegascansMeshUtils::3D Asset Prefab:: " + ex.ToString());
MegascansUtilities.HideProgressBar();
}
}
