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

@@ -16,10 +16,15 @@ CLG_LOGREF_DECLARE_GLOBAL(LOG_RENDER_HYDRA_SCENE, "render.hydra.scene");
 
 bool BlenderSceneDelegate::ShadingSettings::operator==(const ShadingSettings &other)
 {
-  return use_scene_lights == other.use_scene_lights && use_scene_world == other.use_scene_world &&
-         studiolight_name == other.studiolight_name &&
+  bool ret = use_scene_lights == other.use_scene_lights &&
+             use_scene_world == other.use_scene_world;
+  if (ret && !use_scene_world) {
+    /* compare studiolight settings when studiolight is using */
+    ret = studiolight_name == other.studiolight_name &&
           studiolight_rotation == other.studiolight_rotation &&
           studiolight_intensity == other.studiolight_intensity;
+  }
+  return ret;
 }
 
 BlenderSceneDelegate::BlenderSceneDelegate(pxr::HdRenderIndex *parent_index,
@@ -409,17 +414,16 @@ void BlenderSceneDelegate::update_instancers(Object *object)
 
 void BlenderSceneDelegate::update_world()
 {
-  World *world = scene->world;
   if (!world_data_) {
-    if (world) {
-      world_data_ = std::make_unique<WorldData>(this, world, world_prim_id());
+    if (!shading_settings.use_scene_world || (shading_settings.use_scene_world && scene->world)) {
+      world_data_ = std::make_unique<WorldData>(this, world_prim_id());
       world_data_->init();
       world_data_->insert();
     }
   }
   else {
-    if (world) {
-      world_data_->update(world);
+    if (!shading_settings.use_scene_world || (shading_settings.use_scene_world && scene->world)) {
+      world_data_->update();
     }
     else {
       world_data_->remove();
@@ -672,14 +676,12 @@ void BlenderSceneDelegate::update_visibility()
 
 bool BlenderSceneDelegate::set_light_shading_settings()
 {
-  bool ret = false;
-  if (view3d) {
-    if (shading_settings.use_scene_lights != V3D_USES_SCENE_LIGHTS(view3d)) {
+  if (!view3d) {
+    return false;
+  }
+  ShadingSettings prev_settings(shading_settings);
   shading_settings.use_scene_lights = V3D_USES_SCENE_LIGHTS(view3d);
-      ret = true;
-    }
-  }
-  return ret;
+  return !(shading_settings == prev_settings);
 }
 
 bool BlenderSceneDelegate::set_world_shading_settings()

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

@@ -32,30 +32,28 @@
 
 namespace blender::render::hydra {
 
-WorldData::WorldData(BlenderSceneDelegate *scene_delegate,
-                     World *world,
-                     pxr::SdfPath const &prim_id)
-    : IdData(scene_delegate, (ID *)world, prim_id)
+WorldData::WorldData(BlenderSceneDelegate *scene_delegate, pxr::SdfPath const &prim_id)
+    : IdData(scene_delegate, nullptr, prim_id)
 {
 }
 
 void WorldData::init()
 {
-  ID_LOG(1, "");
-
   write_transform();
 
-  World *world = (World *)id;
   data_.clear();
-
   data_[pxr::UsdLuxTokens->orientToStageUpAxis] = true;
 
   float intensity = 1.0f;
-  float exposure = world->exposure;
+  float exposure = 0.0f;
   pxr::GfVec3f color(1.0f, 1.0f, 1.0f);
   pxr::SdfAssetPath texture_file;
 
   if (scene_delegate_->shading_settings.use_scene_world) {
+    World *world = scene_delegate_->scene->world;
+    CLOG_INFO(LOG_RENDER_HYDRA_SCENE, 1, "%s: %s", prim_id.GetText(), world->id.name);
+
+    exposure = world->exposure;
     if (world->use_nodes) {
       /* TODO: Create nodes parsing system */
 
@@ -117,6 +115,12 @@ void WorldData::init()
     }
   }
   else {
+    CLOG_INFO(LOG_RENDER_HYDRA_SCENE,
+              1,
+              "%s: studiolight: %s",
+              prim_id.GetText(),
+              scene_delegate_->shading_settings.studiolight_name.c_str());
+
     StudioLight *sl = BKE_studiolight_find(
         scene_delegate_->shading_settings.studiolight_name.c_str(),
         STUDIOLIGHT_ORIENTATIONS_MATERIAL_MODE);
@@ -139,7 +143,7 @@ void WorldData::init()
 
 void WorldData::insert()
 {
-  ID_LOG(1, "");
+  CLOG_INFO(LOG_RENDER_HYDRA_SCENE, 1, "%s", prim_id.GetText());
   scene_delegate_->GetRenderIndex().InsertSprim(
       pxr::HdPrimTypeTokens->domeLight, scene_delegate_, prim_id);
 }
@@ -152,23 +156,17 @@ void WorldData::remove()
 
 void WorldData::update()
 {
-  ID_LOG(1, "");
+  CLOG_INFO(LOG_RENDER_HYDRA_SCENE, 1, "%s", prim_id.GetText());
   init();
   scene_delegate_->GetRenderIndex().GetChangeTracker().MarkSprimDirty(prim_id,
                                                                       pxr::HdLight::AllDirty);
 }
 
-void WorldData::update(World *world)
-{
-  id = (ID *)world;
-  update();
-}
-
 pxr::VtValue WorldData::get_data(pxr::TfToken const &key) const
 {
   auto it = data_.find(key);
   if (it != data_.end()) {
-    ID_LOG(3, "%s", key.GetText());
+    CLOG_INFO(LOG_RENDER_HYDRA_SCENE, 3, "%s: %s", prim_id.GetText(), key.GetText());
     return pxr::VtValue(it->second);
   }
   return pxr::VtValue();

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

@@ -20,7 +20,7 @@ namespace blender::render::hydra {
 
 class WorldData : public IdData {
  public:
-  WorldData(BlenderSceneDelegate *scene_delegate, World *world, pxr::SdfPath const &prim_id);
+  WorldData(BlenderSceneDelegate *scene_delegate, pxr::SdfPath const &prim_id);
 
   void init() override;
   void insert() override;