Question about ray_dirs.

[karaokenoway]

Hi, what a great job!!
I have a question about the process of initializing ray_dirs.
why ray_dirs are divided by focal in this code?? If i use other data to train, should i take the same steps?

[szymanowiczs]

hi @karaokenoway apologies for a late reply. ray_dirs should be [u/f, v/f, 1] where u, v are x, y locations of the pixel centres (in pixel units) and f is focal length in pixels. For cars and chairs this is done when it is initialised, as encoded above. If focal length varies across source images, the buffer is set to be [u, v, 1] and is divided by focal length in the reconstruction method.

You definitely need to do this for your own data too.