Fixed nullptr empty texture bug.

src/ACGL/OpenGL/Data/TextureLoadStore.cc

@@ -36,7 +36,7 @@ SharedTexture2D loadTexture2D(const std::string& _filename, ColorSpace _colorSpa
         } else {
             ACGL::Utils::error() << "can't create Texture from file " << _filename << " creating small empty texture instead." << std::endl;
             //SharedTexture2D dummy = std::make_shared<Texture2D>();
-            SharedTexture2D dummy = SharedTexture2D();
+            SharedTexture2D dummy = SharedTexture2D(new Texture2D);
             dummy->resize( glm::uvec2(4,4) );
             return dummy;
         }