No metadata handoff when undistorting cameras

[azzarelli]

Hi, just working on some slightly overly complex data parsing and came across the undistortion functionality in the dataloading script and I was wondering if there was a reason why the metadata does not get passed through?

nerfstudio/nerfstudio/data/utils/dataloaders.py

Lines 276 to 284 in 50e0e3c

	new_camera = Cameras(
	camera_to_worlds=camera.camera_to_worlds.unsqueeze(0),
	fx=torch.Tensor([[float(K[0, 0])]]),
	fy=torch.Tensor([[float(K[1, 1])]]),
	cx=torch.Tensor([[float(K[0, 2])]]),
	cy=torch.Tensor([[float(K[1, 2])]]),
	width=torch.Tensor([[image.shape[1]]]).to(torch.int32),
	height=torch.Tensor([[image.shape[0]]]).to(torch.int32),
	)

Ideally, I'd like to pass in metadata to load small texture images on the fly (independent of training), which I thought I could pass through the Cameras() objects so was trying to do this through the camera class