remove unnecessary _context property from FilamentViewer

thermion_dart/native/include/FilamentViewer.hpp

@@ -153,7 +153,6 @@ namespace thermion
 
     private:
         const ResourceLoaderWrapperImpl *const _resourceLoaderWrapper;
-        void* _context = nullptr;
         Scene *_scene = nullptr;
         Engine *_engine = nullptr;
         thermion::ThreadPool *_tp = nullptr;

thermion_dart/native/src/FilamentViewer.cpp

@@ -127,8 +127,7 @@ namespace thermion
   FilamentViewer::FilamentViewer(const void *sharedContext, const ResourceLoaderWrapperImpl *const resourceLoader, void *const platform, const char *uberArchivePath)
       : _resourceLoaderWrapper(resourceLoader)
   {
-    
-    _context = (void *)sharedContext;  
+    Log("Creating engine wiht sharedContext %d", sharedContext);
     
     ASSERT_POSTCONDITION(_resourceLoaderWrapper != nullptr, "Resource loader must be non-null");
 
@@ -147,7 +146,7 @@ namespace thermion
 #else
     _engine = Engine::create(Engine::Backend::OPENGL, (backend::Platform *)platform, (void *)sharedContext, nullptr);
 #endif
-
+    Log("Engine created");
     _engine->setAutomaticInstancingEnabled(true);
 
     _renderer = _engine->createRenderer();

thermion_flutter/thermion_flutter/windows/CMakeLists.txt

@@ -15,7 +15,7 @@ list(APPEND PLUGIN_SOURCES
 )
 
 set(USE_ANGLE FALSE)
-set(WGL_USE_BACKING_WINDOW TRUE)
+set(WGL_USE_BACKING_WINDOW FALSE)
 
 if(USE_ANGLE)
   add_compile_definitions(USE_ANGLE)