message: Fix build with denoiser disabled
diff: @@ -174,7 +174,9 @@ R"text(
  // Allocate denoise buffer the size of framebuffer
  auto fbSize = fb->size();
  +#if OSPRAY_APPS_ENABLE_DENOISER
  denoisedBuffer.reserve(fbSize.x * fbSize.y);
  +#endif
  // Setup initial conditions
  // disable use of "navFrameBuffer" for first frame
  