added render_delegate_name to engine and BlenderSceneDelegate

@@ -33,6 +33,8 @@ class Engine {
                     pxr::HdRenderSettingsMap &render_settings) = 0;
   virtual void render(Depsgraph *depsgraph) = 0;
 
+  std::string render_delegate_name;

@@ -106,3 +71,3 @@
 }
 
-pxr::GfVec2i FinalEngine::get_resolution(Scene *scene)
+pxr::GfVec4f FinalEngine::get_resolution(const Scene *scene)

@@ -244,2 +201,3 @@
+  memcpy(pixels_->data(), data, pixels_->size() * sizeof(float));
   MEM_freeN(data);
-  update_render_result(render_images, layer_name, res[0], res[1]);
+  update_render_result(render_images_, layer_name_, resolution_[0], resolution_[1]);

@@ -28,0 +31,4 @@
+  std::string layer_name_;
+  std::map<std::string, std::vector<float>> render_images_;
+  pxr::GfVec2i resolution_;
+  std::vector<float> *pixels_ = nullptr;