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best codec for anaglyph 3D?
I’m currently working in post on a Anaglyph 3D-project, shot with dual Canon GL2s. The anaglyph process concists of stripping the red channel from one of the cameras and the blue and green from the others and screening them to each other, giving me a red-cyan anaglyph. In AE, this looks good, but i have not found a good codec to render to, as the chroma subsampling destroys the 3D-effect. As this is just a experiment in stereoscopic 3D, the inability to output to DVD or DVCAM for distribution doesn’t really bother me, but i would like to be able to show the film in full quality, even if it means dragging my computer to the screening room and using it for playback.
Can anyone give me a recommendation of a codec with less destructive chroma subsampling (perhaps even nondestructive) wich will playback in realtime on a 2.66 GHz Pentium IV.
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7 Replies
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first of all you might try changing your project to 16-bit or even 32 bit and see what happens. Then render to quicktime animation and play around with the codecs. The blu ray supported codecs should be able to pull it through
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Tried suggested solution without result. As previously stated, the problem seems to be the chroma subsampling. Is it possible to output to 4:4:4 YUV and still have realtime playback?
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From wikipedia:
[edit] 4:2:0 [i.e. much chorma subsampling]
This scheme is found in:
All versions of MPEG, including MPEG-2 implementations such as DVD (although some profiles of MPEG-4 allow higher-quality sampling schemes such as 4:4:4)
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Do you know of any encoder (preferably free) that supports 4:4:4 MPEG-4? I’ve tried, but been unable to find any such setting in the adobe media encoder. As for now, i’m rendering to highly compressed quicktime animation and/or PNG. Playback is not perfekt though, occasional dropped frames and a tendecy to loose audio sync, but it solves the subsampling problem. If anyone knows of a encoder with 4:4:4 capabillity, please let me know.
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have you tried the latest divx?
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hello!
Forget quicktime, if you are on windows. When this one will be really optimized on win plaform and not buggy…
On pc i recommend lagarith codec wich exist in 32 and 64 bit. free and lossless, but 8bits. One of his great advantage it is still developped, multithread,with alpha channel and non destructive compression!
try it!here the url:
https://lags.leetcode.net/codec.htmlOn mac quicktime png is nice but cpu intensive, animation is a nice alternative.
Best regards.
Oscar
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Hello Jonas
I was reading through your posting and wondered if you could help me .
I have been asked to film a 3D promo same as you, but we are going to try and use some green screen as well.
Just wondered if you had any tips for the production and post work. We hope to get a commecial release on a cable network here in the UK and I wanted to get the best quality possible for the viewing public. We will try and give away free red/blue glasses for marketing it.Any tips would be gratefully appreciated, we will shoot the promo on HVX200 at 720p 25fps I think, certainly better for the green screen work with less compression than HDV.
cheers
bob
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