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Rendering with higher bitrate then source?
John Rofrano replied 12 years, 7 months ago 6 Members · 20 Replies
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Steve Rhoden
September 26, 2013 at 11:49 pmYes, 59.94 frame rate is there in the Project Properties
and in the render settings.
Do you think there will be a lot of quality loss by doing so?
Not really. But you have no need to be doing so much fidgeting with
your footages.Steve Rhoden
(Cow Leader)
Film Editor & Compositor.
Filmex Creative Media.
https://www.facebook.com/FilmexCreativeMedia
1-876-461-9019 -
Norman Black
September 27, 2013 at 3:27 amWhen you say 59.94 does not exist as an option, exactly what were you looking at?
59.94 does exist in project properties.
“render As” templates…
It(59.94) does not seem to exist for Mainconcept AVC as a drop down option but you can enter the numeric value.59.94 does exist for Sony AVC as a preset option.
I don’t know how you can render Xvid directly from Vegas. What render template? I do not see one.
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John Rofrano
September 27, 2013 at 10:47 am[Darren Hugh] “Also: I was testing it out the other day with xvid. What I did was rendering so that the mbps was just above the 30 mark (source file), and then I encoded with Handbrake to mp4 (or mkv).
What’s your opinion on that? Do you think there will be a lot of quality loss by doing so? I mean rendering xvid at first really.”
Not a lot but rendering twice to a lossy format will always degrade quality. Whether you will see it or not is another thing. Usually when you render twice, the first render is to a high quality intraframe codec That’s isn’t xvid!
Why are you rendering twice anyway? Why not render once to MainConept AVC as an MP4 file and be done? If you are concerned about quality, you want to reduce the number of times you render.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
John Rofrano
September 27, 2013 at 10:49 am[Norman Black] “I don’t know how you can render Xvid directly from Vegas. What render template? I do not see one.”
Xvid uses the AVI container. You would need to first install the Xvid codec and then create your own template under Video for Windows.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Stephen Mann
September 29, 2013 at 3:54 amXvid and Divx should be avoided. They never get along well with Vegas.
Since you mentioned codecs, NEVER-EVER install a codec pack on an editing PC. These are made for gaming and often will install inferior codecs over the ones installed by Vegas.
Steve Mann
MannMade Digital Video
http://www.mmdv.com -
Darren Hugh
September 29, 2013 at 3:09 pmI’ve been trying to render with the mainConcept AVC codec now.
What annoys me now is the levels difference in the rendered outcome. Way more contrast then what the preview window tells me. Anything that can be done with this?
Thanks
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Norman Black
September 30, 2013 at 2:13 amYour source file(s) probably have a range of 0-255. You can use the video scope to see this. “Proper” levels are 16-235 for REC.709 which is HD color levels.
So when you playback on a computer the player expands the 16-235 range to 0-255 which is what computer monitors expect. This increases contrast, crushing the blacks and blowing the whites.
The Vegas preview system does not assume any kind of input levels and so does nothing to the input data when displaying. This is unlike a typical video player.
So on Vegas preview a 16-235 input source would look washed out in preview, and the resulting playback would like fine. A 0-255 input would look fine on preview and boosted on playback.
For my GoPro video input (0-255) and jpegs (always 0-255) I put a computer to studio preset levels effect on the output. I leave it there always, and I know the preview will be a little washed which I don’t care about unless I am judging color and then I can turn it off. I leave it there always so I don’t forget to put it there when I encode.
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John Rofrano
September 30, 2013 at 11:55 pm[Norman Black] “So when you playback on a computer the player expands the 16-235 range to 0-255 which is what computer monitors expect. This increases contrast, crushing the blacks and blowing the whites.”
Yup, that’s what’s happening. Vegas isn’t doing anything. The Player is doing this because your levels weren’t set correctly in Vegas. Add the Levels plug-in with the Computer RGB to Studio RGB preset to the Master Video Bus before you render as Norman said and it should look fine.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Darren Hugh
October 1, 2013 at 2:40 pmThanks a alot to all of you for taking your time in replying. Its all hugely appreciated.
God I hate this part of the editing, with all the codecs and small details. Especially as I want it to look as good as possible..
Anyways thanks once again for all your help 🙂
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John Rofrano
October 1, 2013 at 9:54 pm
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