private static void FillChildrenRecursive(Transform rootObject, List <object> resChildren)
{
// rootObject.localToWorldMatrix is not in parent's world space
var trs = Matrix4x4.TRS(rootObject.localPosition, rootObject.localRotation, rootObject.localScale); // TODO: slow, need optimization
var matrixArray = UnityExporterHelper.MatrixToArray(trs);
var filter = rootObject.GetComponent <MeshFilter>();
if (filter)
{
UnityEngine.Mesh sharedMesh = filter.sharedMesh;
var meshObject = new Mesh(
Guid.NewGuid().ToString("D"),
sharedMesh.name,
matrixArray,
filter == null ? string.Empty : meshesDictionary[sharedMesh].Uuid
);
resChildren.Add(meshObject);
}
var camera = rootObject.GetComponent <Camera>();
if (camera)
{
var cameraMatrixArray = GetCameraMatrixArray(matrixArray);
var cameraObj = new PerspectiveCamera(
Guid.NewGuid().ToString("D"),
rootObject.name,
cameraMatrixArray,
camera.fieldOfView,
camera.nearClipPlane,
camera.farClipPlane);
resChildren.Add(cameraObj);
}
var newRoot = new Object3D(
Guid.NewGuid().ToString("D"),
rootObject.name,
matrixArray);
resChildren.Add(newRoot);
for (int i = 0; i < rootObject.childCount; i++)
{
var child = rootObject.GetChild(i);
FillChildrenRecursive(child, newRoot.Children);
}
}
private static Dictionary <UnityEngine.Mesh, Geometry> PrepareGeometriesMap(UnityScene scene, bool includeInactive)
{
var meshFilters = UnityExporterHelper.GetComponentsInScene <MeshFilter>(scene, includeInactive);
var distinctMeshes = meshFilters.Select(x => x.sharedMesh).Distinct();
var res = new Dictionary <UnityEngine.Mesh, Geometry>();
foreach (var mesh in distinctMeshes)
{
var geometry = StructuresConverter.ToBufferGeometry(mesh);
res.Add(mesh, geometry);
}
return(res);
}
