source/blender/render/hydra/python.cc

@@ -107,7 +107,6 @@ static PyObject *engine_create_func(PyObject * /*self*/, PyObject *args)
 
   RenderEngine *bl_engine = (RenderEngine *)PyLong_AsVoidPtr(pyengine);
 
-
   Engine *engine;
   if (STREQ(engine_type, "VIEWPORT")) {
     engine = new ViewportEngine(bl_engine, render_delegate_id);

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

@@ -26,7 +26,6 @@ BlenderSceneDelegate::BlenderSceneDelegate(pxr::HdRenderIndex *parent_index,
 
 void BlenderSceneDelegate::update_world()
 {
-  Scene *scene = DEG_get_input_scene(depsgraph);
   World *world = scene->world;
   if (!world_data) {
     if (world) {
@@ -104,7 +103,7 @@ void BlenderSceneDelegate::update_collection(bool remove, bool visibility)
   DEGObjectIterSettings settings = {0};
   settings.depsgraph = depsgraph;
   settings.flags = DEG_ITER_OBJECT_FLAG_LINKED_DIRECTLY | DEG_ITER_OBJECT_FLAG_VISIBLE |
-                   DEG_ITER_OBJECT_FLAG_LINKED_VIA_SET | DEG_ITER_OBJECT_FLAG_DUPLI;
+                   DEG_ITER_OBJECT_FLAG_LINKED_VIA_SET;
   DEGObjectIterData data = {0};
   data.settings = &settings;
   data.graph = settings.depsgraph;
@@ -116,16 +115,12 @@ void BlenderSceneDelegate::update_collection(bool remove, bool visibility)
               Object *,
               object) {
 
+    CLOG_INFO(LOG_BSD, 2, "Add %s", ((ID *)object)->name);
     if (!ObjectData::supported(object)) {
       continue;
     }
-
-    if (data.dupli_object_current != nullptr) {
-      if (!InstancerData::supported(data.dupli_object_current->ob)) {
-        continue;
-      }
-      add_update_instancer(data.dupli_object_current);
-      continue;
+    if ((object->transflag & OB_DUPLI) && InstancerData::supported(object)) {
+      add_update_instancer(object);
     }
 
     id = ObjectData::prim_id(this, object);
@@ -177,29 +172,26 @@ void BlenderSceneDelegate::add_update_object(Object *object)
 {
   pxr::SdfPath id = ObjectData::prim_id(this, object);
   ObjectData *obj_data = object_data(id);
-  if (!obj_data) {
+  if (obj_data) {
+    obj_data->update();
+  }
   objects[id] = ObjectData::create(this, object);
   obj_data = object_data(id);
   obj_data->update_visibility(view3d);
-    return;
 }
 
-  obj_data->update();
-}
-
-void BlenderSceneDelegate::add_update_instancer(DupliObject *dupli)
+void BlenderSceneDelegate::add_update_instancer(Object *object)
 {
-  pxr::SdfPath id = InstancerData::prim_id(this, dupli->ob);
+  pxr::SdfPath id = InstancerData::prim_id(this, object);
   InstancerData *i_data = instancer_data(id, true);
-  if (!i_data) {
-    objects[id] = InstancerData::create(this, dupli->ob);
+  if (i_data) {
+    i_data->update();
+  }
+  objects[id] = InstancerData::create(this, object);
   i_data = instancer_data(id, true);
   i_data->update_visibility(view3d);
 }
 
-  i_data->add_instance(dupli);
-}
-
 ObjectData *BlenderSceneDelegate::object_data(pxr::SdfPath const &id)
 {
   auto it = objects.find(id);
@@ -242,6 +234,7 @@ void BlenderSceneDelegate::populate(Depsgraph *deps, bContext *cont)
 
   depsgraph = deps;
   context = cont;
+  scene = DEG_get_input_scene(depsgraph);
   view3d = CTX_wm_view3d(context);
 
   if (!is_populated) {
@@ -263,7 +256,8 @@ void BlenderSceneDelegate::populate(Depsgraph *deps, bContext *cont)
   ITER_BEGIN (
       DEG_iterator_ids_begin, DEG_iterator_ids_next, DEG_iterator_ids_end, &data, ID *, id) {
 
-    CLOG_INFO(LOG_BSD, 2, "Update: %s [%s]", id->name, std::bitset<32>(id->recalc).to_string().c_str());
+    CLOG_INFO(
+        LOG_BSD, 2, "Update: %s [%s]", id->name, std::bitset<32>(id->recalc).to_string().c_str());
 
     switch (GS(id->name)) {
       case ID_OB: {

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

@@ -10,11 +10,11 @@
 
 #include "CLG_log.h"
 
+#include "instancer.h"
 #include "light.h"
 #include "mesh.h"
 #include "object.h"
 #include "world.h"
-#include "instancer.h"
 
 namespace blender::render::hydra {
 
@@ -22,6 +22,7 @@ extern struct CLG_LogRef *LOG_BSD;  /* BSD - Blender Scene Delegate */
 
 class BlenderSceneDelegate : public pxr::HdSceneDelegate {
   friend MeshData;
+  friend InstancerData;
 
  public:
   enum class EngineType { VIEWPORT = 1, FINAL, PREVIEW };
@@ -59,13 +60,14 @@ class BlenderSceneDelegate : public pxr::HdSceneDelegate {
   InstancerData *instancer_data(pxr::SdfPath const &id, bool base_prim = false);
 
   void add_update_object(Object *object);
-  void add_update_instancer(DupliObject *dupli);
+  void add_update_instancer(Object *object);
   void update_world();
   void update_collection(bool remove, bool visibility);
 
  private:
   Depsgraph *depsgraph;
   bContext *context;
+  Scene *scene;
   View3D *view3d;
 
   ObjectDataMap objects;

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

@@ -3,9 +3,9 @@
 
 #include <pxr/base/gf/vec2f.h>
 
+#include "../utils.h"
 #include "blender_scene_delegate.h"
 #include "instancer.h"
-#include "../utils.h"
 
 using namespace pxr;
 
@@ -27,7 +27,8 @@ bool InstancerData::supported(Object *object)
   return false;
 }
 
-std::unique_ptr<InstancerData> InstancerData::create(BlenderSceneDelegate *scene_delegate, Object *object)
+std::unique_ptr<InstancerData> InstancerData::create(BlenderSceneDelegate *scene_delegate,
+                                                     Object *object)
 {
   auto data = std::make_unique<InstancerData>(scene_delegate, object);
   data->init();
@@ -45,26 +46,36 @@ SdfPath InstancerData::prim_id(BlenderSceneDelegate *scene_delegate, Object *obj
 }
 
 InstancerData::InstancerData(BlenderSceneDelegate *scene_delegate, Object *object)
-  : MeshData(scene_delegate, object)
+    : MeshData(scene_delegate, object), parent_obj(object)
 {
   p_id = prim_id(scene_delegate, object);
   instancer_id = p_id.AppendElementString("Instancer");
   CLOG_INFO(LOG_BSD, 2, "%s, instancer_id=%s", id->name, instancer_id.GetText());
+  id = nullptr;
 }
 
 void InstancerData::init()
 {
-  CLOG_INFO(LOG_BSD, 2, "%s", id->name);
-  MeshData::init();
+  CLOG_INFO(LOG_BSD, 2, "%s", ((ID *)parent_obj)->name);
 
+  id = nullptr;
   transforms.clear();
+  ListBase *lb = object_duplilist(scene_delegate->depsgraph, scene_delegate->scene, parent_obj);
+  LISTBASE_FOREACH (DupliObject *, dupli, lb) {
+    if (!id) {
+      id = (ID *)dupli->ob;
+    }
+    transforms.push_back(gf_matrix_from_transform(dupli->mat));
+    CLOG_INFO(LOG_BSD, 2, "Instance %s %d", id->name, dupli->random_id);
+  }
+  free_object_duplilist(lb);
+
+  MeshData::init();
 }
 
 GfMatrix4d InstancerData::transform()
 {
   return pxr::GfMatrix4d(1.0);
-  /* transform of the first instance */
-  //return transforms[0];
 }
 
 bool InstancerData::update_visibility(View3D *view3d)
@@ -73,13 +84,8 @@ bool InstancerData::update_visibility(View3D *view3d)
     return false;
   }
 
-  Object *obj = (Object *)id;
-  if (!obj->parent) {
-    return false;
-  }
-
   bool prev_visible = visible;
-  visible = BKE_object_is_visible_in_viewport(view3d, obj->parent);
+  visible = BKE_object_is_visible_in_viewport(view3d, parent_obj);
   return visible != prev_visible;
 }
 
@@ -113,12 +119,6 @@ VtIntArray InstancerData::instance_indices()
   return ret;
 }
 
-void InstancerData::add_instance(DupliObject *dupli)
-{
-  CLOG_INFO(LOG_BSD, 2, "%s [%d]", id->name, dupli->random_id);
-  transforms.push_back(gf_matrix_from_transform(dupli->mat));
-}
-
 void InstancerData::insert()
 {
   CLOG_INFO(LOG_BSD, 2, "%s", id->name);

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

@@ -12,7 +12,8 @@ namespace blender::render::hydra {
 class InstancerData : public MeshData {
  public:
   static bool supported(Object *object);
- static std::unique_ptr<InstancerData> create(BlenderSceneDelegate *scene_delegate, Object *object);
+  static std::unique_ptr<InstancerData> create(BlenderSceneDelegate *scene_delegate,
+                                               Object *object);
   static pxr::SdfPath prim_id(BlenderSceneDelegate *scene_delegate, Object *object);
 
   InstancerData(BlenderSceneDelegate *scene_delegate, Object *object);
@@ -28,11 +29,10 @@ public:
   pxr::HdPrimvarDescriptorVector instancer_primvar_descriptors(pxr::HdInterpolation interpolation);
   pxr::VtIntArray instance_indices();
 
-  void add_instance(DupliObject *dupli);
-
   pxr::SdfPath instancer_id;
 
  private:
+  Object *parent_obj;
   pxr::VtMatrix4dArray transforms;
 };
 

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

@@ -104,7 +104,8 @@ pxr::VtValue MaterialData::material_resource()
   if (material_network_map.IsEmpty()) {
     const std::string &path = mtlx_path.GetResolvedPath();
     if (!path.empty()) {
-      pxr::HdRenderDelegate *render_delegate = scene_delegate->GetRenderIndex().GetRenderDelegate();
+      pxr::HdRenderDelegate *render_delegate =
+          scene_delegate->GetRenderIndex().GetRenderDelegate();
       pxr::TfTokenVector shader_source_types = render_delegate->GetShaderSourceTypes();
       pxr::TfTokenVector render_contexts = render_delegate->GetMaterialRenderContexts();
 
@@ -134,7 +135,8 @@ void MaterialData::update()
 {
   CLOG_INFO(LOG_BSD, 2, "%s", id->name);
   init();
-  scene_delegate->GetRenderIndex().GetChangeTracker().MarkSprimDirty(p_id, pxr::HdMaterial::AllDirty);
+  scene_delegate->GetRenderIndex().GetChangeTracker().MarkSprimDirty(p_id,
+                                                                     pxr::HdMaterial::AllDirty);
 }
 
 }  // namespace blender::render::hydra

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

@@ -8,8 +8,8 @@
 
 #include "BKE_duplilist.h"
 
-#include "object.h"
 #include "material.h"
+#include "object.h"
 
 namespace blender::render::hydra {
 

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

@@ -28,7 +28,8 @@ bool ObjectData::supported(Object *object)
   return false;
 }
 
-std::unique_ptr<ObjectData> ObjectData::create(BlenderSceneDelegate *scene_delegate, Object *object)
+std::unique_ptr<ObjectData> ObjectData::create(BlenderSceneDelegate *scene_delegate,
+                                               Object *object)
 {
   std::unique_ptr<ObjectData> data;