source/blender/render/hydra/sceneDelegate/blenderSceneDelegate.cc

@@ -78,41 +78,48 @@ bool BlenderSceneDelegate::GetVisible(SdfPath const &id)
   return object_data(id)->visible;
 }
 
-pxr::GfRange3d BlenderSceneDelegate::GetExtent(pxr::SdfPath const &id)
+GfRange3d BlenderSceneDelegate::GetExtent(SdfPath const &id)
 {
   LOG(INFO) << "GetExtent: " << id.GetString();
-  return pxr::GfRange3d();
+  return GfRange3d();
 }
 
-bool BlenderSceneDelegate::GetDoubleSided(pxr::SdfPath const &id)
+bool BlenderSceneDelegate::GetDoubleSided(SdfPath const &id)
 {
   LOG(INFO) << "GetDoubleSided: " << id.GetString();
   return false;
 }
 
-pxr::HdCullStyle BlenderSceneDelegate::GetCullStyle(pxr::SdfPath const &id)
+HdCullStyle BlenderSceneDelegate::GetCullStyle(SdfPath const &id)
 {
   LOG(INFO) << "GetCullStyle: " << id.GetString();
-  return pxr::HdCullStyle();
+  return HdCullStyle();
 }
 
-pxr::SdfPath BlenderSceneDelegate::GetInstancerId(pxr::SdfPath const &primId)
+SdfPath BlenderSceneDelegate::GetInstancerId(SdfPath const &primId)
 {
-  LOG(INFO) << "GetInstancerId: " << primId.GetString();
+  ObjectData *obj_data = object_data(primId);
-  return pxr::SdfPath();
+  LOG(INFO) << "GetInstancerId: " << primId.GetAsString();
+  if (obj_data && obj_data->name() == "Cube") {
+    return GetDelegateID().AppendElementString("Instancer");
+  }
+  return SdfPath();
 }
 
-pxr::SdfPathVector BlenderSceneDelegate::GetInstancerPrototypes(pxr::SdfPath const &instancerId)
+SdfPathVector BlenderSceneDelegate::GetInstancerPrototypes(SdfPath const &instancerId)
 {
   LOG(INFO) << "GetInstancerPrototypes: " << instancerId.GetString();
-  return pxr::SdfPathVector();
+  SdfPathVector paths;
+  paths.push_back(GetDelegateID().AppendElementString("Inst1"));
+  paths.push_back(GetDelegateID().AppendElementString("Inst2"));
+  return paths;
 }
 
-pxr::VtIntArray BlenderSceneDelegate::GetInstanceIndices(pxr::SdfPath const &instancerId,
+VtIntArray BlenderSceneDelegate::GetInstanceIndices(SdfPath const &instancerId,
-                                                         pxr::SdfPath const &prototypeId)
+                                                         SdfPath const &prototypeId)
 {
   LOG(INFO) << "GetInstanceIndices: " << instancerId.GetString() << " " << prototypeId.GetString();
-  return pxr::VtIntArray();
+  return VtIntArray();
 }
 
 void BlenderSceneDelegate::update_collection(bool remove, bool visibility)
@@ -294,6 +301,7 @@ void BlenderSceneDelegate::populate(Depsgraph *deps, bContext *cont)
     /* Export initial objects */
     update_collection(false, false);
     update_world();
+    GetRenderIndex().InsertInstancer(this, GetDelegateID().AppendElementString("Instancer"));
     return;
   }
 
@@ -374,12 +382,14 @@ void BlenderSceneDelegate::populate(Depsgraph *deps, bContext *cont)
 
 HdMeshTopology BlenderSceneDelegate::GetMeshTopology(SdfPath const& id)
 {
+  LOG(INFO) << "GetMeshTopology: " << id.GetString();
   MeshData *m_data = mesh_data(id);
   return m_data->mesh_topology();
 }
 
 VtValue BlenderSceneDelegate::Get(SdfPath const& id, TfToken const& key)
 {
+  LOG(INFO) << "Get: " << id.GetString() << " " << key.GetString();
   ObjectData *obj_data = object_data(id);
   if (obj_data) {
     return obj_data->get_data(key);
@@ -394,7 +404,12 @@ VtValue BlenderSceneDelegate::Get(SdfPath const& id, TfToken const& key)
 
 HdPrimvarDescriptorVector BlenderSceneDelegate::GetPrimvarDescriptors(SdfPath const& id, HdInterpolation interpolation)
 {
-  return mesh_data(id)->primvar_descriptors(interpolation);
+  LOG(INFO) << "GetPrimvarDescriptors: " << id.GetString() << " " << interpolation;
+  if (mesh_data(id)) {
+    return mesh_data(id)->primvar_descriptors(interpolation);
+  }
+  HdPrimvarDescriptorVector primvars;
+  return primvars;
 }
 
 SdfPath BlenderSceneDelegate::GetMaterialId(SdfPath const & rprimId)
@@ -413,6 +428,7 @@ VtValue BlenderSceneDelegate::GetMaterialResource(SdfPath const& id)
 
 GfMatrix4d BlenderSceneDelegate::GetTransform(SdfPath const& id)
 {
+  LOG(INFO) << "GetTransform: " << id.GetString();
   ObjectData *obj_data = object_data(id);
   if (obj_data) {
     return obj_data->transform();

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

@@ -28,7 +28,8 @@ pxr::SdfPath MaterialData::prim_id(pxr::HdSceneDelegate *scene_delegate, Materia
    * Example: M_000002074e812088 */
   char str[32];
   snprintf(str, 32, "M_%016llx", (uint64_t)material);
-  return scene_delegate->GetDelegateID().AppendElementString(str);
+  //return scene_delegate->GetDelegateID().AppendElementString(str);
+  return scene_delegate->GetDelegateID().AppendElementString(((ID *)material)->name);
 }
 
 MaterialData::MaterialData(pxr::HdSceneDelegate *scene_delegate, Material *material)

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

@@ -25,6 +25,7 @@ public:
   pxr::HdPrimvarDescriptorVector primvar_descriptors(pxr::HdInterpolation interpolation);
 
   pxr::SdfPath material_id;
+  pxr::SdfPath instancer_id;
 
  private:
   void set_mesh(Mesh *mesh);

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

@@ -56,7 +56,8 @@ pxr::SdfPath ObjectData::prim_id(pxr::HdSceneDelegate *scene_delegate, Object *o
    * O_000002073e369608 */
   char str[32];
   snprintf(str, 32, "O_%016llx", (uint64_t)object);
-  return scene_delegate->GetDelegateID().AppendElementString(str);
+  //return scene_delegate->GetDelegateID().AppendElementString(str);
+  return scene_delegate->GetDelegateID().AppendElementString(((ID *)object)->name);
 }
 
 ObjectData::ObjectData(pxr::HdSceneDelegate *scene_delegate, Object *object)