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1. Re: Roto Brush stops responding to strokes
Dave LaRonde Aug 16, 2013 11:41 AM (in response to superkevkt)Are you trying to use Rotobrush intutively? If so, you aren't doing yourself any favors. You really owe it to yourself to run the tutorials and read up on its use. It is NOT the most intuitive tool on the planet, and that's a fact.
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2. Re: Roto Brush stops responding to strokes
Rick Gerard Aug 16, 2013 11:55 AM (in response to superkevkt)Tell us a bit about your system. You may be running out of memory. What are your preferences settings for memory and RMFS (MP)?
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3. Re: Roto Brush stops responding to strokes
superkevkt Aug 16, 2013 12:05 PM (in response to Dave LaRonde)Dave LaRonde wrote:
Are you trying to use Rotobrush intutively? If so, you aren't doing yourself any favors. You really owe it to yourself to run the tutorials and read up on its use. It is NOT the most intuitive tool on the planet, and that's a fact.
I wouldn't say that I'm an expert on Rotobrush, but I have watched a number of tutorial videos and read a bunch of articles and completed a few videos using Rotobrush in the past. You're right. It's not intuitive.
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4. Re: Roto Brush stops responding to strokes
superkevkt Aug 16, 2013 12:09 PM (in response to Rick Gerard)Rick Gerard wrote:
Tell us a bit about your system. You may be running out of memory. What are your preferences settings for memory and RMFS (MP)?
Yes, that's a possibility. I have allocated as much memory as possible to AE but maybe have done it wrong. I only started adjusting it from the default settings once I started running into this problem. After I allocated as much memory and CPU power to AE as I could, AE was definitely running smoother, but Rotobrush still would not respond to brush strokes. Windows reports that I am only using 41% of physical memory.
My configuration is Core i7-2600 with 16GB of RAM. Here is a screenshot of my memory and MP settings:
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5. Re: Roto Brush stops responding to strokes
Rick Gerard Aug 16, 2013 3:35 PM (in response to superkevkt)You should change your memory settings. You're starving the system. You have no cores left for other apps. Rotobrush also is not compatible with RMFS (MP). I would turn that off and give AE no more than 10GB. You're not gaining anything with those aggressive memory settings.
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6. Re: Roto Brush stops responding to strokes
superkevkt Aug 16, 2013 5:17 PM (in response to Rick Gerard) -
7. Re: Roto Brush stops responding to strokes
Rick Gerard Aug 16, 2013 9:58 PM (in response to superkevkt)Try rendering your clip to a different codec. Something lossless like Animation QuickTime or even Jpeg and try again. Try another clip. There may be a problem with the video especially if you've not extended the propagation area.
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8. Re: Roto Brush stops responding to strokes
Todd_Kopriva Aug 24, 2013 6:22 PM (in response to superkevkt)I just watched the video that you posted, and it's not possible to tell from that snippet what is going on. My best guess is that you drew some strokes before what is shown in the video that contradict the information that you're adding with the strokes that we see in the video.
Try deleting the Roto Brush effect from that layer and starting over.
A crucial tip for using Roto Brush is to not try to "undo" a bad background stroke by drawing a foreground stroke in the same area. If you draw a bad stroke, undo (Ctrl+Z) and try again.
I strongly recommend going through these resources:
http://blogs.adobe.com/aftereffects/2010/04/roto-brush-in-after-effects-cs.html
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9. Re: Roto Brush stops responding to strokes
superkevkt Aug 25, 2013 7:34 AM (in response to Todd_Kopriva)Thanks everyone for your suggestions. Since it seems to be a problem unique to my project, I'll try again later to see if I can get better results.




