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ProRes = bad render with Slomo
I have a sequence of shots in a ProRes timeline that are at 75% speed (or any speed change). When I render any transitions or title supers I get flashing at the bottom of the frame. It seems to include the last 5 or so lines and has a 4 frame cycle. I’ve tried dropping the same shots in various timelines (DV, DV50) and the problem is still there – seems it’s associated with the source material not the timeline settings. I even re-digitized new source material with the same results. I was able to use a crop of 1 at the bottom of each shot which solved the problem.
Anyone else able to recreate the issue?
Using a MacPro 8 core, FCP 7.0.1, Snow Leopard, AJA iOHD 7.1
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6 Replies
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Nope, can’t recreate. I work solely with ProRes (HDV captured as ProRes), and my editors are speed change happy! 50%, 75%, 25%… and I have lower thirds and subtitles and title cards all over this footage. I do not have the same issue.
But I am not running Snow Leopard either…buggy OS.
Shane
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Thanks for the input – I suppose I should have been more specific:
– 525 29.97 ProRes
– Was happening before I went to snow leopard with FCP 7.0 -
DV is 720×480. ProRes is 720×486 so you’re probably seeing some overscan there with those last three scan lines. Cropping it off is probably the only way to clean that up. You would probably see the exact same results if you captured to Uncompressed SD.
Nothing to do with ProRes, has to do with the frame size and the original format.
Walter Biscardi, Jr.
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Nope – perfectly clean render with uncompressed
Breakup/tearing with prores! -
Seems to be in error with clip speed, frame blending and the transition/render. If I turn frame blending off for both clips the render is correct. With frame blending on, that’s when I see the render errors at the bottom of the frame during the transition (dissolve).
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[Bill Portune] “I was able to use a crop of 1 at the bottom of each shot which solved the problem. “
Field order problem?
I take it you imported the footage as interlaced and then tried to deinterlace it?
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