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Vegas Rendered Quality
Hello,
I’m having issues with quality of my Sony Vegas 9.0c renders. I’m shooting my footage with a Canon GL2, in standard mode (non-frame) and i’m seeing noticeable horizontal lines during movement.
Now i’m aware this has to do with interlacing as well as field order, however, i’ve attempted to render with virtually every combination of settings available and i cannot seem to rid myself of the issue – though I can reduce it somewhat.
So far the best solution has been project settings with: no field order (progressive scan) and deinterlace method set to interpolate fields or lower field first and deinterlace method set to blend fields.
What doesn’t make sense to me is that if I match my project settings to the footage I captured directly from the Sony GL2 in Vegas, the field order is set to lower field first. From the research i’ve done, it appears that the GL2’s standard footage should be a progressive scan by default.
Additionally, when filming in Frame Movie Mode – i do not experience the horizontal line issue. I suppose the easy solution is “film everying in frame mode from now on,” but i’d prefer to understand why this is occurring.
Thanks to everyone in advance for any assistance.
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8 Replies
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Don’t have a GL2 but I do have a GL1, and with the switch not in frame mode, it captures 60i. Setting interlace mode to blend will do just that, but gives you kind of a double image, which makes the video look smoother if your subject is moving fast. If your video has no fast moving parts in it, try interpolate. It gives you a clearer picture but can look jumpy during fast moving video. Hope this helps, Danny Hays
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Danny,
Thank you for the response. I believe the horizontal lines i’m talking about are called “interlace artifacts”? However, I thought they would not be visible on a progressive monitor filmed in 60i?
Is there no way to eliminate them? I see very very clean video on youtube utilizing this particular camera fairly regularly, and the render settings do not appear to differ from mine.
I’m quite confused.
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I believe the horizontal lines i’m talking about are called “interlace artifacts”? However, I thought they would not be visible on a progressive monitor filmed in 60i?
Actually, the only way to see interlaced artifacts is by watching interlaced video on a progressive monitor. So what you think should work is exactly what doesn’t work. Interlaced footage will only look correct on an interlaced monitor or a progressive monitor that has the ability to deinterlace.
Is there no way to eliminate them? I see very very clean video on youtube utilizing this particular camera fairly regularly, and the render settings do not appear to differ from mine.
You didn’t say how you are rendering for YouTube. If you render progressive you should not see interlacing. Try using Match Media to match your project to the 60i footage that your camera shoots. Then render using the Sony AVC type with the Internet 4:3 SD 30p template.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Actually, the only way to see interlaced artifacts is by watching interlaced video on a progressive monitor. So what you think should work is exactly what doesn’t work. Interlaced footage will only look correct on an interlaced monitor or a progressive monitor that has the ability to deinterlace.
I see. I was definetly mixed up in my understanding then, so thank you for the correction. Whats confusing me even more though, is that right now i’m utilizing the interpolate fields deinterlacing method in my project settings and still seeing them.
You didn’t say how you are rendering for YouTube. If you render progressive you should not see interlacing. Try using Match Media to match your project to the 60i footage that your camera shoots. Then render using the Sony AVC type with the Internet 4:3 SD 30p template.
I have matched the media settings on many occasions, but not used the Sony AVC type so that could possibly resolve everything! I’m literally going to attempt these settings immediately and return with the results! Thank you for your time thus far, John.
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Ok, i’m still unable to resolve it. I suppose i could be seeing the artifacts now because i’m looking for them, and perhaps they are masked fairly well.
I’ve noticed that filming with a Canon Gl2’s ‘Frame Movie Mode’ yields crisp footage with no artifacts at all. Is this because frame mode is progressive?
Is 60i something I don’t want to film in if my footage will all be played from a website?
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Is 60i something I don’t want to film in if my footage will all be played from a website?
The “i” in 60i is for “interlaced”. It is 60 interlaced fields and 30 frames per second (where each frame consists of 2 fields, one set of add scan lines and one set of even scan lines.
If your footage is shot interlaced at 60i then your project should be set for interlaced 60i. Don’t confused your project settings with your render settings. Keep the project interlaced and the render progressive and you should be fine.
Of course, shooting progressive to begin with will eliminate the whole issue all together.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
If your footage is shot interlaced at 60i then your project should be set for interlaced 60i. Don’t confused your project settings with your render settings. Keep the project interlaced and the render progressive and you should be fine.
So.. if the project settings are interlaced (i.e. field order defaulting to “lower field first”) then for better viewing on the internet, i need to have the project set to deinterlace, either via blending fields or interpolating them, correct?
Of course, shooting progressive to begin with will eliminate the whole issue all together.
This may not be an appropriate question for this particular forum, but using the GL2 – the standard film setting is 60i, and the Film Frame Mode would be my only option for shooting progressive, correct?
John, my sincerest thanks to you for your gracious assistance. I’m an amateur without the know-how, so i appreciate your time.
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So.. if the project settings are interlaced (i.e. field order defaulting to “lower field first”) then for better viewing on the internet, i need to have the project set to deinterlace, either via blending fields or interpolating them, correct?
Yes, correct. If your footage is interlaced it is best to work with it as interlaced and then render to progressive as the final step.
This may not be an appropriate question for this particular forum, but using the GL2 – the standard film setting is 60i, and the Film Frame Mode would be my only option for shooting progressive, correct?
From what I understand, the GL2 has an interlaced sensor and when shooting in Frame Mode it deinterlaces in-camera using Interpolation. I believe it’s a “secret” Canon algorithm but what you get is progressive output. This would completely solve your problem of shooting for the internet.
John, my sincerest thanks to you for your gracious assistance. I’m an amateur without the know-how, so i appreciate your time.
You’re welcome. It’s an honor for me to be able to help those who are traveling the same road I came down. It’s what my Christian upbringing has taught me to do. I’m glad I can help.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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