UsdSchema usdiFindOrCreateNode(Transform parent, usdi.Schema schema, ref bool created)
{
GameObject go = null;
// find existing GameObject or create new one
var name = usdi.usdiPrimGetNameS(schema);
var child = parent.FindChild(name);
if (child != null)
{
go = child.gameObject;
created = false;
}
else if (go == null)
{
go = new GameObject();
go.name = name;
go.GetComponent <Transform>().SetParent(parent, false);
created = true;
}
// create USD node
UsdSchema ret = usdiCreateNode(schema);
ret.gameObject = go;
return(ret);
}
UsdSchema usdiCreateNode(usdi.Schema schema)
{
UsdSchema ret = null;
if (ret == null)
{
var s = usdi.usdiAsPoints(schema);
if (s)
{
ret = new UsdPoints();
}
}
if (ret == null)
{
var s = usdi.usdiAsMesh(schema);
if (s)
{
ret = new UsdMesh();
}
}
if (ret == null)
{
var s = usdi.usdiAsCamera(schema);
if (s)
{
ret = new UsdCamera();
}
}
if (ret == null)
{
// Xform must be latter because some schemas are subclass of Xform
var s = usdi.usdiAsXform(schema);
if (s)
{
ret = new UsdXform();
}
}
if (ret == null)
{
ret = new UsdSchema();
}
ret.nativeSchemaPtr = schema;
ret.stream = this;
return(ret);
}
void usdiConstructMasterTree(usdi.Schema schema, Action <UsdSchema> node_handler)
{
if (!schema)
{
return;
}
var elem = usdiCreateNode(schema);
node_handler(elem);
int num_children = usdi.usdiPrimGetNumChildren(schema);
for (int ci = 0; ci < num_children; ++ci)
{
var child = usdi.usdiPrimGetChild(schema, ci);
usdiConstructMasterTree(child, node_handler);
}
}
void usdiConstructTree(Transform parent, usdi.Schema schema, Action <UsdSchema> node_handler)
{
if (!schema)
{
return;
}
bool created = false;
var elem = usdiFindOrCreateNode(parent, schema, ref created);
if (elem != null)
{
node_handler(elem);
}
var trans = elem == null ? parent : elem.GetComponent <Transform>();
int num_children = usdi.usdiPrimGetNumChildren(schema);
for (int ci = 0; ci < num_children; ++ci)
{
var child = usdi.usdiPrimGetChild(schema, ci);
usdiConstructTree(trans, child, node_handler);
}
}
public virtual void usdiOnUnload()
{
usdiSync();
m_schema = default(usdi.Xform);
}
public abstract void CreateUSDObject(usdi.Context ctx, usdi.Schema parent);
public UsdSchema usdiFindSchema(usdi.Schema s)
{
return(usdiFindSchema(usdi.usdiPrimGetPathS(s)));
}
public RootCapturer(UsdExporter exporter, usdi.Schema usd)
: base(exporter, null)
{
m_usd = usd;
}
public void usdiOnLoad(UsdMesh parent, int nth)
{
m_schema = parent.nativeSchemaPtr;
m_nth = nth;
}