Allow camera render target to be null

src/dawnliminal/scenes/HelloWorldScene.hpp

@@ -13,6 +13,7 @@ namespace Dawn {
   class HelloWorldScene : public Scene {
     protected:
       Camera *camera;
+      Camera *camNew;
       UICanvas *canvas;
       Texture text;
 
@@ -25,6 +26,10 @@ namespace Dawn {
         camera->fov = 0.436332f;
         camera->transform->lookAt(glm::vec3(10, 10, 10), glm::vec3(0, 0, 0));
 
+        camNew = Camera::create(this);
+        camNew->transform->lookAt(glm::vec3(10, 10, 10), glm::vec3(0, 0, 0));
+        camNew->renderTarget = nullptr;
+
         auto cube = SimpleSpinningCubePrefab::create(this);
 
         auto textbox = VNTextbox::create(this);