doc/python_api/examples/bpy.types.HydraRenderEngine.py

@@ -7,6 +7,7 @@ USD Hydra Based Renderer
 
 import bpy
 
+
 class CustomHydraRenderEngine(bpy.types.HydraRenderEngine):
     # Identifier and name in the user interface.
     bl_idname = "CUSTOM_HYDRA_RENDERER"
@@ -53,8 +54,10 @@ class CustomHydraRenderEngine(bpy.types.HydraRenderEngine):
 def register():
     bpy.utils.register_class(CustomHydraRenderEngine)
 
+
 def unregister():
     bpy.utils.unregister_class(CustomHydraRenderEngine)
 
+
 if __name__ == "__main__":
     register()

scripts/modules/bpy_hydra.py

@@ -4,6 +4,7 @@ __all__ = (
     "export_mtlx",
 )
 
+
 def export_mtlx(material):
     """ Exports material to .mtlx file. It is called from Blender source code. """
     try:

source/blender/render/hydra/engine.cc

@@ -55,11 +55,7 @@ Engine::Engine(RenderEngine *bl_engine, const std::string &render_delegate_name)
   free_camera_delegate_ = std::make_unique<pxr::HdxFreeCameraSceneDelegate>(
       render_index_.get(), pxr::SdfPath::AbsoluteRootPath().AppendElementString("freeCamera"));
 
-#ifdef __APPLE__
-  render_task_delegate_ = std::make_unique<RenderTaskDelegate>(
-      render_index_.get(), pxr::SdfPath::AbsoluteRootPath().AppendElementString("renderTask"));
-#else
-  if (bl_engine->type->flag & RE_USE_GPU_CONTEXT) {
+  if (bl_engine->type->flag & RE_USE_GPU_CONTEXT && GPU_backend_get_type() == GPU_BACKEND_OPENGL) {
     render_task_delegate_ = std::make_unique<GPURenderTaskDelegate>(
         render_index_.get(), pxr::SdfPath::AbsoluteRootPath().AppendElementString("renderTask"));
   }
@@ -67,7 +63,6 @@ Engine::Engine(RenderEngine *bl_engine, const std::string &render_delegate_name)
     render_task_delegate_ = std::make_unique<RenderTaskDelegate>(
         render_index_.get(), pxr::SdfPath::AbsoluteRootPath().AppendElementString("renderTask"));
   }
-#endif
   render_task_delegate_->set_camera(free_camera_delegate_->GetCameraId());
 
   if (render_delegate_name_ == "HdStormRendererPlugin") {

source/blender/render/hydra/python.cc

@@ -36,7 +36,7 @@ static PyObject *engine_create_func(PyObject * /*self*/, PyObject *args)
   }
 
   RenderEngine *bl_engine = pyrna_to_pointer<RenderEngine>(pyengine, &RNA_RenderEngine);
-  
+
   CLOG_INFO(LOG_RENDER_HYDRA, 1, "Engine %s", engine_type);
   Engine *engine = nullptr;
   try {
@@ -53,7 +53,7 @@ static PyObject *engine_create_func(PyObject * /*self*/, PyObject *args)
   catch (std::runtime_error &e) {
     CLOG_ERROR(LOG_RENDER_HYDRA, "%s", e.what());
   }
-  
+
   CLOG_INFO(LOG_RENDER_HYDRA, 1, "Engine %p", engine);
   return PyLong_FromVoidPtr(engine);
 }

source/blender/render/hydra/render_task_delegate.cc

@@ -135,7 +135,7 @@ void RenderTaskDelegate::read_aov(pxr::TfToken const &aov_key, float *data)
   if (!buffer) {
     return;
   }
-  
+
   pxr::HdFormat format = buffer->GetFormat();
   size_t len = buffer->GetWidth() * buffer->GetHeight() * pxr::HdGetComponentCount(format);
   if (pxr::HdGetComponentFormat(format) == pxr::HdFormatFloat32) {