release/scripts/modules/hydra.py

@@ -46,7 +46,7 @@ class HydraRenderEngine(bpy.types.RenderEngine):
         delegate_settings = self.get_delegate_settings(engine_type)
 
         _hydra.engine_sync(self.engine_ptr, depsgraph.as_pointer(), bpy.context.as_pointer(), delegate_settings)
-        _hydra.engine_render(self.engine_ptr, depsgraph.as_pointer(), engine_type)
+        _hydra.engine_render(self.engine_ptr, depsgraph.as_pointer())
 
     # viewport render
     def view_update(self, context, depsgraph):

source/blender/render/hydra/finalEngine.h

@@ -12,7 +12,7 @@ namespace blender::render::hydra {
 class FinalEngine : public Engine {
 public:
   using Engine::Engine;
-  void sync(BL::Depsgraph &b_depsgraph, BL::Context &b_context, pxr::HdRenderSettingsMap &renderSettings) override;
+  virtual void sync(BL::Depsgraph &b_depsgraph, BL::Context &b_context, pxr::HdRenderSettingsMap &renderSettings) override;
   virtual void render(BL::Depsgraph &b_depsgraph) override;
 
 protected:

source/blender/render/hydra/previewEngine.h

@@ -3,20 +3,18 @@
 
 #pragma once
 
-#include "engine.h"
+#include "finalEngine.h"
 
 namespace blender::render::hydra {
 
-  class PreviewEngine : public Engine {
+  class PreviewEngine : public FinalEngine {
   public:
-    using Engine::Engine;
+    using FinalEngine::FinalEngine;
     void sync(BL::Depsgraph &b_depsgraph, BL::Context &b_context, pxr::HdRenderSettingsMap &renderSettings) override;
     void render(BL::Depsgraph &b_depsgraph) override;
 
   protected:
-    pxr::GfVec2i get_resolution(BL::RenderSettings b_render);
     void updateRenderResult(const std::string &layerName, int width, int height, std::vector<float> &pixels);
-    void notifyStatus(float progress, const std::string &title, const std::string &info);
 
   protected:
     HdRenderSettingsMap renderSettings;

source/blender/render/hydra/python.cc

@@ -209,20 +209,12 @@ static PyObject *engine_sync_func(PyObject * /*self*/, PyObject *args)
 static PyObject *engine_render_func(PyObject * /*self*/, PyObject *args)
 {
   PyObject *pyengine, *pydepsgraph;
-  char *engineType;
 
-  if (!PyArg_ParseTuple(args, "OOs", &pyengine, &pydepsgraph, &engineType)) {
+  if (!PyArg_ParseTuple(args, "OO", &pyengine, &pydepsgraph)) {
     Py_RETURN_NONE;
   }
 
-  Engine *engine;
-
-  if (string(engineType) == "PREVIEW") {
-    engine = (PreviewEngine *)PyLong_AsVoidPtr(pyengine);
-  }
-  else {
-    engine = (FinalEngine *)PyLong_AsVoidPtr(pyengine);
-  }
+  Engine *engine = (Engine *)PyLong_AsVoidPtr(pyengine);
 
   PointerRNA depsgraphptr;
   RNA_pointer_create(NULL, &RNA_Depsgraph, (ID *)PyLong_AsVoidPtr(pydepsgraph), &depsgraphptr);
@@ -255,7 +247,7 @@ static PyObject *engine_view_draw_func(PyObject * /*self*/, PyObject *args)
 
   /* Allow Blender to execute other Python scripts. */
   Py_BEGIN_ALLOW_THREADS
-    engine->viewDraw(b_depsgraph, b_context);
+    engine->render(b_depsgraph, b_context);
   Py_END_ALLOW_THREADS
 
   Py_RETURN_NONE;

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

@@ -27,14 +27,6 @@ void BlenderSceneDelegate::set_material(MeshData &mesh_data)
     mesh_data.material_id = SdfPath::EmptyPath();
     return;
   }
-  /**
-   * Haven't found any description about this flag. It disables some materials
-   * that don't exist for preview render 
-   */
-  if (!material->flag) {
-    mesh_data.material_id = SdfPath::EmptyPath();
-    return;
-  }
   SdfPath id = MaterialData::prim_id(this, material);
   MaterialData *mat_data = material_data(id);
   if (!mat_data) {

source/blender/render/hydra/viewportEngine.cc

@@ -253,7 +253,7 @@ void ViewportEngine::sync(BL::Depsgraph &b_depsgraph, BL::Context &b_context, Hd
   }
 }
 
-void ViewportEngine::viewDraw(BL::Depsgraph &b_depsgraph, BL::Context &b_context)
+void ViewportEngine::render(BL::Depsgraph &b_depsgraph, BL::Context &b_context)
 {
   ViewSettings viewSettings(b_context);
   if (viewSettings.width() * viewSettings.height() == 0) {
@@ -307,7 +307,7 @@ void ViewportEngine::viewDraw(BL::Depsgraph &b_depsgraph, BL::Context &b_context
   }
 }
 
-void ViewportEngine::render(BL::Depsgraph& b_depsgraph)
+void ViewportEngine::render(BL::Depsgraph &b_depsgraph)
 {
 }
 

source/blender/render/hydra/viewportEngine.h

@@ -33,8 +33,8 @@ class ViewportEngine : public Engine {
 public:
   using Engine::Engine;
   void sync(BL::Depsgraph &b_depsgraph, BL::Context &b_context, pxr::HdRenderSettingsMap &renderSettings) override;
-  void viewDraw(BL::Depsgraph &b_depsgraph, BL::Context &b_context);
   void render(BL::Depsgraph &b_depsgraph) override;
+  void render(BL::Depsgraph &b_depsgraph, BL::Context &b_context);
 
 private:
   void notifyStatus(const std::string &title, const std::string &info);