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PLEASE, Help me to continue with the Vegas!!!
Dear friends, my name is Alexander, I’m from Switzerland and first time I want to ask apologies for my bad domain of english language. I know that this issue has been discussed a lot but please help me to understand something that drives me crazy.
It’s all about the Deinterlace option method. No need to explain me what is “blend” or “interpolate fields”, I know it. My problem is not knowing WHEN and UNDER WHAT CIRCUMSTANCES I have to choose one option or another. I want to tell from the beginning that always respect the properties of a video, I DON’T WANT TO DEINTERLACE nothing. All that I do in my edits is only a little colour correction and put a few pictures in project, nothing more.
I work with 3 types of videos. So:
1. If I edit a video 720×576 PAL [interlaced, LFF] and all what I pretend is to get a mpeg2 [interlaced LFF] to dvd, I need to choose one option between “blend fields” or “interpolate”, or not necessary, and leave it to “none”?2.I work also with video 1920×1080 50p, my intention is to get a video to blu-ray as 1920×1080 50p. That is the same resolution and the same progressive type. Deinterlace method: none, blend or interpolate fields?
3. And last: the same initial 1920×1080 50p video: this time I want a 720×576 dvd mpeg2 PAL progressive. None, blend or interpolate? This time you see the same progressive property, just change the resolution.
As you see never attempt deinterlace a video, from an interlaced video I want an interlaced video and from a progressive video I want a progressive video; just sometime change the resolution, nothing more.
Please, help me in this, is the only thing that I can’t understand, not what is and what do a deinterlace method[blend or interpolate]. My problem is understand WHEN you have to use them. I read a lot of comment about this and seems everyone has a different opinion.
Thank you very much, Alexander/ Berna.
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3 Replies
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From what I always have understood, the deinterlace settings in the properties tab are dealing with deinterlace of the preview window when this one is set to GOOD or BEST. The preview window is not deinterlaced when it is set to DRAFT or PREVIEW.
In addition, transient deinterlacing occurs when an effect needs to be rendered.
The option BLEND is used for footage with high contrast and little movement.
The option INTERPOLATE should be choosen when you have a video with low contrast and a lot of motion.
So this setting has nothing to do with rendering your project from what format you are using to whatever you are rendering to…
Theo
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Searching and searching informations about this issue I found this very clear explanation:
“It’s important to understand what happened here. Vegas is extremely smart if you don’t lie to it. Setting the deinterlace to none is NEVER a good idea unless you are working with 100% progressive footage. If ANY of your footage is interlaced, you need to tell Vegas how you would like it to be deinterlaced should it ever need to. Vegas will take care of the fact that some of the footage is upper field first while others are lower field first. Like I said, it is very smart and knows what to do if you don’t stop it”
John Rofrano, Videographer VASST.
Everyone agrees with this?
Thank you very much Theo for your implication.
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You can also check the help FILES from the PROPERTIES window in Vegas. There you will find a nice description of the deinterlace method option.
Theo
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