source/blender/render/hydra/scene_delegate/blender_scene_delegate.cc

@@ -65,15 +65,11 @@ pxr::GfMatrix4d BlenderSceneDelegate::GetInstancerTransform(pxr::SdfPath const &
   return i_data->transform();
 }
 
-void BlenderSceneDelegate::add_update_object(Object *object)
+void BlenderSceneDelegate::update_objects(Object *object)
 {
-  if ((object->transflag & OB_DUPLI) && InstancerData::supported(object)) {
-    add_update_instancer(object);
+  if (!ObjectData::supported(object)) {
+    return;
   }
-  for (auto &it : instancers) {
-    it.second->check_update(object);
-  }
-
   pxr::SdfPath id = ObjectData::prim_id(this, object);
   ObjectData *obj_data = object_data(id);
   if (obj_data) {
@@ -88,12 +84,29 @@ void BlenderSceneDelegate::add_update_object(Object *object)
   obj_data->update_visibility(view3d);
 }
 
-void BlenderSceneDelegate::add_update_instancer(Object *object)
+void BlenderSceneDelegate::update_instancers(Object *object)
 {
+  /* Check object inside instancers */
+  for (auto &it : instancers) {
+    it.second->check_update(object);
+  }
+
   pxr::SdfPath id = InstancerData::prim_id(this, object);
   InstancerData *i_data = instancer_data(id);
   if (i_data) {
+    if (object->transflag & OB_DUPLI) {
       i_data->update();
+    }
+    else {
+      i_data->remove();
+      instancers.erase(id);
+    }
+    return;
+  }
+  if ((object->transflag & OB_DUPLI) == 0) {
+    return;
+  }
+  if (view3d && !BKE_object_is_visible_in_viewport(view3d, object)) {
     return;
   }
   instancers[id] = InstancerData::create(this, object);
@@ -311,10 +324,8 @@ void BlenderSceneDelegate::check_updates()
     switch (GS(id->name)) {
       case ID_OB: {
         Object *object = (Object *)id;
-        if (!ObjectData::supported(object)) {
-          break;
-        }
-        add_update_object(object);
+        update_objects(object);
+        update_instancers(object);
       } break;
 
       case ID_MA: {
@@ -368,7 +379,8 @@ void BlenderSceneDelegate::add_new_objects()
       continue;
     }
 
-    add_update_object(object);
+    update_objects(object);
+    update_instancers(object);
   }
   ITER_END;
 }
@@ -477,7 +489,10 @@ void BlenderSceneDelegate::update_visibility()
     }
 
     if (!object_data(ObjectData::prim_id(this, object))) {
-      add_update_object(object);
+      update_objects(object);
+    }
+    if (!instancer_data(InstancerData::prim_id(this, object))) {
+      update_instancers(object);
     }
   }
   ITER_END;

source/blender/render/hydra/scene_delegate/blender_scene_delegate.h

@@ -60,8 +60,8 @@ class BlenderSceneDelegate : public pxr::HdSceneDelegate {
   MaterialData *material_data(pxr::SdfPath const &id);
   InstancerData *instancer_data(pxr::SdfPath const &id);
 
-  void add_update_object(Object *object);
-  void add_update_instancer(Object *object);
+  void update_objects(Object *object);
+  void update_instancers(Object *object);
   void update_world();
   void check_updates();
   void add_new_objects();

source/blender/render/hydra/scene_delegate/material.cc

@@ -127,7 +127,7 @@ void MaterialData::insert()
 
 void MaterialData::remove()
 {
-  ID_LOG(2, "");
+  CLOG_INFO(LOG_BSD, 2, "%s", p_id.GetText());
   scene_delegate->GetRenderIndex().RemoveSprim(pxr::HdPrimTypeTokens->material, p_id);
 }