text: Title: Dummy Camera Rendering
  Body: I am trying to run render.py using only cameras.json from a trained GS model, without the original dataset. I created a dummy camera and applied all parameters, including R and T, as well as camera-related settings from cameras.json. I also confirmed that the T values are identical in the SIBR viewer, but the rendered result is almost invisible with render.py. It seems like there might be an issue with the rotation property. Shouldn't R|T be directly applied as is?