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

@@ -214,8 +214,8 @@ void BlenderSceneDelegate::clear()
   for (auto &it : objects_.values()) {
     it->remove();
   }
-  for (auto &it : instancers_) {
-    it.second->remove();
+  for (auto &it : instancers_.values()) {
+    it->remove();
   }
 
 
@@ -320,9 +320,9 @@ InstancerData *BlenderSceneDelegate::instancer_data(pxr::SdfPath const &id, bool
     p_id = id;
   }
 
-  auto it = instancers_.find(p_id);
-  if (it != instancers_.end()) {
-    return it->second.get();
+  const std::unique_ptr<InstancerData> *value = instancers_.lookup_ptr(p_id);
+  if (value != nullptr) {
+    return value->get();
   }
   return nullptr;
 }
@@ -357,8 +357,8 @@ void BlenderSceneDelegate::update_objects(Object *object)
 void BlenderSceneDelegate::update_instancers(Object *object)
 {
   /* Check object inside instancers */
-  for (auto &it : instancers_) {
-    it.second->check_update(object);
+  for (auto &it : instancers_.values()) {
+    it->check_update(object);
   }
 
   pxr::SdfPath id = instancer_prim_id(object);
@@ -367,7 +367,7 @@ void BlenderSceneDelegate::update_instancers(Object *object)
     if ((object->transflag & OB_DUPLI) == 0) {
       /* Object isn't instancer anymore and should be removed */
       i_data->remove();
-      instancers_.erase(id);
+      instancers_.remove(id);
       return;
     }
 
@@ -384,7 +384,7 @@ void BlenderSceneDelegate::update_instancers(Object *object)
     return;
   }
 
-  instancers_[id] = std::make_unique<InstancerData>(this, object, id);
+  instancers_.add_overwrite(id, std::make_unique<InstancerData>(this, object, id));
   i_data = instancer_data(id);
   i_data->init();
   i_data->insert();
@@ -547,16 +547,16 @@ void BlenderSceneDelegate::remove_unused_objects()
   ITER_END;
 
   /* Remove unused instancers */
-  for (auto it = instancers_.begin(); it != instancers_.end(); ++it) {
-    if (available_objects.find(it->first.GetName()) != available_objects.end()) {
-      /* Remove objects from instancers */
-      it->second->check_remove(available_objects);
-      continue;
+  instancers_.remove_if([&](auto item) {
+  bool ret = available_objects.find(item.key.GetName()) == available_objects.end();
+  if (ret){
+    item.value->remove();
   }
-    it->second->remove();
-    instancers_.erase(it);
-    it = instancers_.begin();
+  else{
+    item.value->check_remove(available_objects);
   }
+  return ret;
+  });
 
   /* Remove unused objects */
     objects_.remove_if([&](auto item) {
@@ -580,8 +580,8 @@ void BlenderSceneDelegate::remove_unused_objects()
       c_data->available_materials(available_materials);
     }
   }
-  for (auto &it : instancers_) {
-    it.second->available_materials(available_materials);
+  for (auto &it : instancers_.values()) {
+    it->available_materials(available_materials);
   }
 
   materials_.remove_if([&](auto item) {
@@ -599,8 +599,8 @@ void BlenderSceneDelegate::update_visibility()
   for (auto &it : objects_.values()) {
     it->update_visibility();
   }
-  for (auto &it : instancers_) {
-    it.second->update_visibility();
+  for (auto &it : instancers_.values()) {
+    it->update_visibility();
   }
 
   /* Add objects/instancers which were invisible before and not added yet */

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

@@ -4,6 +4,7 @@
 #pragma once
 
 #include "BKE_duplilist.h"
+#include "BLI_map.hh"
 
 #include "light.h"
 #include "mesh.h"
@@ -62,6 +63,6 @@ class InstancerData : public ObjectData {
 };
 
 using InstancerDataMap =
-    pxr::TfHashMap<pxr::SdfPath, std::unique_ptr<InstancerData>, pxr::SdfPath::Hash>;
+    Map<pxr::SdfPath, std::unique_ptr<InstancerData>>;
 
 }  // namespace blender::render::hydra

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

@@ -66,8 +66,8 @@ void MaterialData::update()
         m_data->update_double_sided(this);
       }
     }
-    for (auto &it : scene_delegate_->instancers_) {
-      it.second->update_double_sided(this);
+    for (auto &it : scene_delegate_->instancers_.values()) {
+      it->update_double_sided(this);
     }
   }
 }