I don’t understand why some AOV’s render without alpha and some do. My Ambient Occlusion AOV (custom) always renders with no alpha. That is, maybe it has alpha but the whole image is opaque even if the beauty has tranparent areas.
I suspect it has to do with skydome light, that this somehow “occupies space” and thus shows up in alpha as white pixels. If this is the case, how can I stop it from happening? I have turned off camera visibility in the light’s shape node but how can I turn it off for a specific AOV?