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

@@ -3,8 +3,10 @@
 
 #include <pxr/imaging/hd/light.h>
 #include <pxr/imaging/hd/material.h>
+#include <pxr/imaging/hd/renderDelegate.h>
 #include <pxr/usd/usdLux/tokens.h>
 #include <pxr/imaging/hdSt/tokens.h>
+#include <pxr/base/gf/rotation.h>
 
 #include "glog/logging.h"
 
@@ -449,7 +451,15 @@ GfMatrix4d BlenderSceneDelegate::GetTransform(SdfPath const& id)
   HdRenderIndex &index = GetRenderIndex();
 
   if (index.GetSprim(HdPrimTypeTokens->domeLight, id)) {
-    return GfMatrix4d().SetIdentity();
+    GfMatrix4d transform = world_data.transform();
+    if (world_data.has_data(UsdLuxTokens->orientToStageUpAxis)) {
+      transform *= GfMatrix4d(GfRotation(GfVec3d(1.0, 0.0, 0.0), -90), GfVec3d());
+    }
+    if (index.GetRenderDelegate()->GetRendererDisplayName() == "RPR") {
+      transform *= GfMatrix4d(GfRotation(GfVec3d(1.0, 0.0, 0.0), -180), GfVec3d());
+      transform *= GfMatrix4d(GfRotation(GfVec3d(0.0, 0.0, 1.0), 90.0), GfVec3d());
+    }
+    return transform;
   }
 
   return objects[id].transform();

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

@@ -17,12 +17,10 @@
 #include "BKE_node.h"
 #include "BKE_node_runtime.hh"
 #include "BKE_image.h"
-#include "BKE_image_save.h"
-#include "BKE_appdir.h"
 #include "NOD_shader.h"
-#include "BLI_path_util.h"
 
 #include "world.h"
+#include "../utils.h"
 
 /* TODO : add custom tftoken "transparency"? */
 
@@ -32,15 +30,16 @@ using namespace std;
 namespace blender::render::hydra {
 
 WorldData::WorldData()
-  : shading(nullptr),
+  : b_context(nullptr),
+    shading(nullptr),
     world(nullptr)    
 {
 }
 
 WorldData::WorldData(View3DShading *shading, World *world, BL::Context *b_context)
-  : shading(shading),
+  : b_context(b_context),
-    world(world),
+    shading(shading),
-    b_context(b_context)
+    world(world)    
 {
   set_as_world();
 }
@@ -63,7 +62,7 @@ TfToken WorldData::prim_type()
 
 GfMatrix4d WorldData::transform()
 {
-  return GfMatrix4d();
+  return GfMatrix4d().SetIdentity();
 }
 
 VtValue &WorldData::get_data(TfToken const &key)
@@ -85,8 +84,9 @@ void WorldData::set_as_world()
 {
   data.clear();
 
-  if (world->use_nodes) {
+  data[UsdLuxTokens->orientToStageUpAxis] = true;
 
+  if (world->use_nodes) {
     bNode *output_node = ntreeShaderOutputNode(world->nodetree, SHD_OUTPUT_ALL);
     bNodeSocket input_socket = output_node->input_by_identifier("Surface");
     bNodeLink const *link = input_socket.directly_linked_links()[0];
@@ -105,44 +105,19 @@ void WorldData::set_as_world()
       bNode *color_input_node = color_input.directly_linked_links()[0]->fromnode;
       if (color_input_node->type == SH_NODE_TEX_IMAGE) {
         NodeTexImage *tex = static_cast<NodeTexImage *>(color_input_node->storage);
-        Image *ima = (Image *)color_input_node->id;
+        Image *image = (Image *)color_input_node->id;
+
+        if (image) {
+          Main *bmain = CTX_data_main((bContext *)b_context->ptr.data);
+          Scene *scene = CTX_data_scene((bContext *)b_context->ptr.data);
 
-        if (ima) {
           ReportList reports;
           ImageSaveOptions opts;
-          Main *bmain = CTX_data_main((bContext *)b_context->ptr.data);
-
-          if (BKE_image_save_options_init(&opts,
-                                          bmain,
-                                          CTX_data_scene((bContext *)b_context->ptr.data),
-                                          ima,
-                                          &tex->iuser,
-                                          false,
-                                          false)) {
-            char tempfile[FILE_MAX];
-            string image_name;
-
-            if (ima->source == IMA_SRC_GENERATED) {
-              image_name.append(ima->id.name + 2).append(".png");
-            }
-            else {
-              image_name = ima->filepath == NULL ?
-                                std::filesystem::path(ima->filepath).filename().string() :
-                                ima->id.name + 2;
-            }
-
-            BLI_path_join(tempfile,
-                          sizeof(tempfile),
-                          BKE_tempdir_session(),
-                          image_name.c_str());
-            STRNCPY(opts.filepath, tempfile);
           opts.im_format.imtype = R_IMF_IMTYPE_PNG;
-            opts.save_copy = true;
 
-            if (BKE_image_save(&reports, bmain, ima, &tex->iuser, &opts)) {
+          string cached_image_path = cache_image(bmain, scene, image, &tex->iuser, &opts, &reports);
-              data[HdLightTokens->textureFile] = SdfAssetPath(tempfile, tempfile);
+          if (!cached_image_path.empty()) {
-            }
+            data[HdLightTokens->textureFile] = SdfAssetPath(cached_image_path, cached_image_path);
-            BKE_image_save_options_free(&opts);
           }
         }
       }

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

@@ -33,17 +33,15 @@ public:
   bool has_data(pxr::TfToken const &key);
   void update_world();
 
+  BL::Context *b_context;
   View3DShading *shading;
   World *world;
-  BL::Context *b_context;
   
  private:
-  
   std::map<pxr::TfToken, pxr::VtValue> data;
 
   void set_as_world();
   void set_as_shading();
-  std::string get_image_filepath(const bNode *tex_node);
 };
 
 template<class T>

source/blender/render/hydra/utils.cc

@@ -2,9 +2,18 @@
  * Copyright 2011-2022 Blender Foundation */
 
 #include <sstream>
+#include <filesystem>
+
+#include <pxr/base/tf/stringUtils.h>
+
+#include "BKE_appdir.h"
+#include "BKE_image_save.h"
+#include "BLI_string.h"
+#include "BLI_path_util.h"
 
 #include "utils.h"
 
+using namespace pxr;
 using namespace std;
 
 namespace blender::render::hydra {
@@ -33,4 +42,44 @@ string formatDuration(chrono::milliseconds millisecs)
   return ss.str();
 }
 
+string cache_image(Main *bmain,
+                   Scene *scene,
+                   Image *image,
+                   ImageUser *iuser,
+                   ImageSaveOptions *opts,
+                   ReportList *reports)
+{
+  const string default_format = ".png";
+
+  char tempfile[FILE_MAX];
+
+  if (!BKE_image_save_options_init(opts, bmain, scene, image, iuser, true, false)) {
+    BKE_image_save_options_free(opts);
+    return "";
+  }
+
+  string image_name;
+
+  if (image->source == IMA_SRC_GENERATED) {
+    image_name = TfMakeValidIdentifier(image_name.append(image->id.name + 2));
+  }
+  else {
+    image_name = image->filepath == NULL ? image->filepath : image->id.name + 2;
+    image_name = std::filesystem::path(image_name).filename().replace_extension().string();
+    image_name = TfMakeValidIdentifier(image_name);
+  }
+
+  image_name.append(default_format);
+
+  BLI_path_join(tempfile, sizeof(tempfile), BKE_tempdir_session(), image_name.c_str());
+  STRNCPY(opts->filepath, tempfile);
+
+  if (BKE_image_save(reports, bmain, image, iuser, opts)) {
+    BKE_image_save_options_free(opts);
+    return tempfile;
+  };
+
+  BKE_image_save_options_free(opts);
+  return "";
+}  
 }  // namespace blender::render::hydra

source/blender/render/hydra/utils.h

@@ -6,8 +6,17 @@
 #include <chrono>
 #include <string>
 
+#include "BKE_image.h"
+#include "BKE_image_save.h"
+
 namespace blender::render::hydra {
 
 std::string formatDuration(std::chrono::milliseconds secs);
+std::string cache_image(Main *bmain,
+                        Scene *scene,
+                        Image *image,
+                        ImageUser *iuser,
+                        ImageSaveOptions *opts,
+                        ReportList *reports);
 
 } // namespace blender::render::hydra