Green Flash frames in ProRes HQ 2k sequence crash
by Gabe Thorburn
on
Aug 29, 2008 at 3:48:43 am
I tried looking for this on the forums, but I couldn't find many other people having this problem.
I'm getting random flashes of green in the canvas and viewer when playing back; green freeze frames when parked. When this happens, the system hangs within the next minute (spinning wheel of death). The green flash frame is not playing out thru the 720p monitor output.
This is 2K ProRes HQ (converted from RED through Log and Transfer).
System Specs:
Final Cut Pro 6.0.4 / QT 7.5 / OS 10.5.4
Dual Quad Core Mac Pro
10GB RAM
Kona 3
Re: Green Flash frames in ProRes HQ 2k sequence crash by Sean ONeil on Aug 29, 2008 at 4:47:31 am
I just tested RED footage for the first time yesterday. All the clips I imported from Log & Transfer were solid green (you'd think they'd be red - ho ho).
I think this is just one of the many bugs that exists in the RED post workflow. Red Alert seems to be the best method to convert to ProRes.
Re: Green Flash frames in ProRes HQ 2k sequence crash by Gabe Thorburn on Aug 29, 2008 at 6:04:13 am
RED has a warning about a problem with green flash frames on the top of their support page. It's a problem using the QT proxies the camera generates. Their solution is to transcode into ProRes.
I've imported all the clips successfully using RED's L&T plug in.
So in theory once they have been transcoded to ProRes it shouldn't have anything to do with the Red Codec. The green flashes seem to happen kind of randomly, and I suspect it's probably a FCP/QT/ProRes issue.
Re: Green Flash frames in ProRes HQ 2k sequence crash by Scott Robert on Sep 10, 2008 at 2:55:52 am
I'm having the same issue here. The video looks great on my SD monitor. The viewer shows green flashes and sometimes my sequence does too. I'm guessing it may have to do with the graphic card or FCP...
When I scale it more or less 1 pixel, the problem goes away.
Re: Green Flash frames in ProRes HQ 2k sequence crash by Scott Robert on Sep 10, 2008 at 5:43:57 am
The funny thing is if I go to Modify>Alpha Type>Straight
In the viewer window, change background white.
The image on the monitor is fixed but the video out to the SD monitor is turned off during play.
Turning on a range check will only be green during play.
Quicktime player plays the video no problem so it can't be a graphic card issue. Like you said - it must be FCP.
