Hi community!
I followed through the official adobe instruction on Rotobrushing and two tutorials on YouTube, but when I operate this tool things are kind of weird:
1. Only when I hold down a brush and painting, either foreground or background brush, the pink outline displays normally. As soon as I release the tool, the pink outline surrounds the entire frames, as well as alpha (as fully white) and overlay (as fully transparent). Please see the following screenshot (I'm working on a comedy project so apologies for the vulgarity):
2. When I drag time indicator forward or use PageUp/Down, AE does not auto-propagate the frame selection. In the tutorials I see there should be a thin green line extending itself from the base fram towards time indicator, which doesnt appear in my case.
3. I had the tiny hope that maybe it's just a display issue, so I tried to just freeze frame, but it ends up masked nothing, so the entire frame are being shown. Plus, without the pink outline or alpha or overlay I cannot adjust the selection, so it's not viable.
I searched online for similar problems and attempted their solutions, but none of them worked:
1. Perfomance issue (simply propagating too slow)
There is no blue "loading bar" appearing at bottom right. And Ae is running on i9-10920X and 2080ti, allocated 59G of RAM, and the video has merely a 720p resolution whichi shouldn't take that much of performance.
2. Framerate issue
I created the comp directly from the video by draging it onto the ""new comp", which means they should have matching framerates.
3. Not indicating background
I painted both foreground and backgroud, and as seen in the screenshot, when I holding down a tool it actually displays the proper area selected, it just goes back to selecting entire frame as soon as I release the brushes.
4. Zoom and adaptive resolution
I was working on 100% and full resolution. In addition I think it's sometimes necessary to zoom in to ensure correct selection, so if rotobrush cant work with zooming the interface it's less useful somehow.
Again, sorry for the poop in the frame.
Regards,
4
Replies
More on framerates: when I downloaded the video, in the metadata (as read by windows exploer, PotPlayer and Media encoder) it reads as 29.974FPS, and when inported into AE it's interpreted as 29.97FPS. I thought this could be the problem so manually changed the comp framerate to 29.974FPS. However, now AE warns me about mismatched framerate and prevent me from using RotoBrush.
Furthermore, I rendered the original video to various new framerates (in case the rounding of 29.974 to 29.97) caused the problem) including 30FPS, 29.97FPS, and 25FPS, and repeated the whole process, but everthing is the same: It selects the whole frame, but when I hold down brush tools a correct outlines shows temporarily, and it's gone when I release the tools. Auto proopagation again doesn't work at all. The screenshot is when I manullay set the comp to 29.974 (as opposed to the auto-detected 29.97)FPS in an attempt to match the framerate.
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