I want to add an animated quadbot model to real life video footage.
What I did was checking “transparent” under the “Film” tab (Render properties). It looks like this renders only the model without any background which is what I want, but when I try to add the model to the footage through the node editor it renders with a black background and doesn’t show the footage. I also have a mask to mask out a car going through the footage so as if it appears in front of the model. What am I doing wrong if I want to make it look as if the model is in the footage ?