Thanks for this awesome tutorial, i was searching for this =) I just got one Problem: After rendering the picture, i see grey bars up and downside the picture (Also on your rendering in the Video). How can i fix this?
@@keithwu8381 so when you select both (hold down shift and select Background and Floor), then within the attributes panel, a few inches below, you will see these black arrows to the right of: "Mode Edit User Data". Click on the right one > until you see "Tag" which should be highlighted in blue. It's the third one down, and you should see "Projection." To the right of it, you will probably see "Flat." Click on it and select "Frontal."
Not too far, sir. Right-click on the object you wish to apply the tag to. Then scroll down to the "Render tag" option. It will display the "compositing tag".