I did some Roto work for the first time today. First off the videos out there are a bit confusion. One used a white soild to Roto and Track, another used No Solid. I tried the no solid for my application which was a foreground object walking behind a composite or asset placed on a background. (care to expound?)
I made a seperate comp for this and when beginning my Roto I got an error about Roto FPS needs to match to get better results. See Pic(s) My Roto worked fine as desired, I did not need to create a second layer as my other comp was the second layer and the roto'd comp was well, my roto'd comp. So I plopped that Comp in the other comp and lined it up to do as needed.
My error was strange though, as I used the icon to drop a 29.97 .mov file to create the ROTO comp, settings were a match but I got a message about 59 fps see pics for more clarity please, What was I not doing to get them to jibe? Is this the reason my Master Comp wont render as asked in another post?
Thanks for your help on this
1st pic is setting up my comp for Roto
2nd pic Error recieved with settings open to reference:
Rotobrush may be assuming that your footage is interlaced. What is the file interpretation of your footage? Go to the Project Panel, select the original footage and then go to File>Interpret Footage and tell us what you see.