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Aspect Ratio Issue on Renders
My screen / aspect ratio is acting up when I render an edit.
I import still photos and use the Pan/Scan tool to Match Output Aspect (which is widescreen HDV 16:9) Now I guess 95% of the time there’s no issue. But every now & then there are black lines at the edge of the screen when I render. These don’t show up when I’m playing back the video in the preview window…but they are rendering.Funny thing is that the regular video fills the screen fine on renders, it’s the still images that I’m having issues with. I’ve triple checked all the settings (Project Properties / preferences / render settings, etc.) to no avail. I’ve gone in Pan/Scan and selected Restore and then Match Output Aspect. Still no good.
Any ideas? I’m stumped. I use Vegas Pro 10.
Thanks!
C
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5 Replies
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What is the width, height, and pixel aspect ratio of your project?
What is the width, height, and pixel aspect ratio of your render template?
If they are not the same… you’ve found your problem. They must be the same in order for your render to look like your project.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Thanks for the post John, I’ll check it and test. But for the record, there are other pics that came from the same still camera, shot the same and imported at the same time from the SD and they are rendering fine. I don’t really understand why these odd shots are getting the black lines on the side.
My project settings are HDV 1440 X 1080, I import HDV and output DVD Widescreen (standard def) 720 by 480. Most everything looks fine.
I’ll check the H/W/pixel aspect ratio and see. But if all still images are the same to begin with and are resized / cropped using the Pan/Crop tool (Match Output) with most being fine and others less so. Why the difference?
Thanks,
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FWIW: I discovered what was causing the aspect ratio issue. When editing imported pics, I use the PAN/CROP TOOL to match the project output (16:9). Whenever I playback a preview, everything looks fine in the display on the timeline. BUT…when I render out, many times the imported stills have black on the edges.
After going back and forth double & triple checking my PAN/CROP TOOL settings, etc. I discovered that by going in the PROPERTIES of EACH STILL PIC, I UNCLICKED the MAINTAIN ASPECT RATIO, figuring that this may have some affect. It sure did because everything worked fine when I rendered out.
again, FWIW!
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Your problem is that the aspect ratios for standard definition formats like NTSC DV are not quite true 4:3 or 16:9 but are slightly wider – hence the black bars when going from HD (proper 16:9) to SD.
Vegas has an option in the Project Properties to “Adjust source media to better match project or render settings”. However, this only seems to affect video events, not still images – at least in Movie Studio 10, where it’s enabled by default I think.
You can uncheck this option to force all media to be treated the same, which means you will always get a slight pillarbox effect (black side edges) when rendering from HD to SD/DV formats like DVD. That won’t look so bad when you view the output on a TV.
Unchecking “maintain aspect ratio” in pan/crop just allows Vegas to slightly stretch your images horizontally to fill up the black bars.
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[Matt Crowley] “Vegas has an option in the Project Properties to “Adjust source media to better match project or render settings”. However, this only seems to affect video events, not still images – at least in Movie Studio 10, where it’s enabled by default I think.”
There is another option for still images in Options | Preferences | Editing called: Automatically crop still images added to timeline which will cause all images to be cropped to the project when added.
~jr
http://www.johnrofrano.com
http://www.vasst.com
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