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wierd digital dropouts after render…
I have a simple Tga with an alpha which looks fine full screen but when I sqeeze down and render I get small little greed dots around the image.. anyone seen this before ? and know how to removeThanks
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13 Replies
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Which codec?
What do you mean by “squeezed down to render”?
Maybe it’s a combo of resizing/square pixels. Much more detail needed for an answer.
David
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Sorry… Thought if someone had the problem they would know it off the bat 🙂
I am using AJA Kona 2 , the sequence Quicktime setting is uncompressed 10 bit 4:2:2,
the video processing is set to 10 bit material in high precision yuv
When I switched to 8 bit yuv the problem went away.. I thought I could use 10 bit with no problems?the file I am using is a ipr (livetype file) and the background video is an uncompressed 10 bit 4:2:2 quicktime file..
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Are you seeing small green pixels at the border of the scaled graphic? Then it might be the same problem we have with a scaled down superimposed Photoshop graphic in our timeline. We see it in the viewer before and after rendering. Also Kona 2 with 10 bit uncompressed PAL timeline. Didn’t try 8 bits like you did. If someone can explain me how to attach a jpg to a message I could post a screen shot so the experts can have a look.
Hans Vernhout
Director / lighting cameraman
The Netherlands -
I have experienced this problem as well. To keep footage in 10 bit, I have only found one solution to make it go away. Change the motion setting in the Sequence Setting, Video processing tab to fastest (linear). This seams to resolve the problem.
Jared
Idea Spring Editing, Inc.
Denver Final Cut Pro UG -
Yep little green dots…
I only see them after render though/. I am gonna try faster video processing and see what happens… -
I have posted about this before.
It is the drop shadow. Apparently 10 bit YUV was never able to process drop shadow from FCP. here’s the article from apple…
https://docs.info.apple.com/article.html?artnum=93871
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Thank you 🙂
SO should I work in 8 bit from now on, I was just told working in 10 bit is over kill we are working in SD not HD (yet)
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yeah. I work in 8 bit or I produce my drop shadows other ways (livetype, photoshop).
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Rick,
Thanks for pointing this out. We also get rid of the problem when we render in RGB so we can use all the color detail and latitude from the 10-bit footage. But this might cause subtle color changes because of the YUV-RGB color space conversion during rendering (although we don’t see any in the footage we’re working with at the moment).
Setting the motion filtering to Fastest or rendering in 8-bit kind of defies the purpose of working with digibeta footage and a 10-bit capable Kona 2 card. As this ’10-bit problem’ affects many high quality broadcast productions done in FCP it seems to me that Apple has to fix this bug as soon as possible…Hans Vernhout
Director / lighting cameraman
The Netherlands -
Ahhh haaa…
Ok we are working in SD capturing our footage off reg beta and DV, HD is our near future but not yet
I guess I would be ok working in 8 bit until the issue is resolved, I also noticed many of my CGM plug ins having problems being rendered in 10 bit and also with Boris Continuim effects.
so working on reg SD off beta I would be ok with 8 bit right?
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