1 files changed, 64 insertions, 0 deletions
diff --git a/source/blender/io/usd/intern/usd_reader_instance.cc b/source/blender/io/usd/intern/usd_reader_instance.cc
new file mode 100644
index 00000000000..e645b0237b9
--- /dev/null
+++ b/source/blender/io/usd/intern/usd_reader_instance.cc
@@ -0,0 +1,64 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2021 Blender Foundation.
+ * All rights reserved.
+ */
+
+#include "usd_reader_instance.h"
+
+#include "BKE_object.h"
+#include "DNA_object_types.h"
+
+#include <iostream>
+
+namespace blender::io::usd {
+
+USDInstanceReader::USDInstanceReader(const pxr::UsdPrim &prim,
+                                     const USDImportParams &import_params,
+                                     const ImportSettings &settings)
+    : USDXformReader(prim, import_params, settings)
+{
+}
+
+bool USDInstanceReader::valid() const
+{
+  return prim_.IsValid() && prim_.IsInstance();
+}
+
+void USDInstanceReader::create_object(Main *bmain, const double /* motionSampleTime */)
+{
+  this->object_ = BKE_object_add_only_object(bmain, OB_EMPTY, name_.c_str());
+  this->object_->data = nullptr;
+  this->object_->transflag |= OB_DUPLICOLLECTION;
+}
+
+void USDInstanceReader::set_instance_collection(Collection *coll)
+{
+  if (this->object_) {
+    this->object_->instance_collection = coll;
+  }
+}
+
+pxr::SdfPath USDInstanceReader::proto_path() const
+{
+  if (pxr::UsdPrim master = prim_.GetMaster()) {
+    return master.GetPath();
+  }
+
+  return pxr::SdfPath();
+}
+
+}  // namespace blender::io::usd