Final Video is here!
After I rendered out all my shots, I comped the background in Nuke. I want to have depth of field for first and second shots. I found these two videos about how to add DOP in Nuke.
I used depth channel which is Z pass in Maya AOVs to add depth of field. I found that my denoised sequence don’t have depth channel anymore. So I shuffled the original sequence to depth channel, and used Copy node to copy the depth channel to the denoised sequence.
And then I exported the camera in Maya, and imported into Nuke to do a 3D project for the sky.