Cropping causes interlacing

Angus wrote on 11/15/2003, 2:26 PM

I have Vegas 4.0d. I have this uncompressed AVI. I'm trying to crop the bottom 3 or 4 lines, and output another uncompressed AVI, but when I do, it interlaces. I can't image why. All I'm doing is using the Event Pan/Crop tool. I'm not resizing the image, that is, the height of the output is however many lines less of what I'm cropping. I was hoping to have the exact same output as the input, minus the lower few lines. Why can't I do that?
BTW, when I playback nothing is being streteched or anything. The input doesn't interlace at all. Why does the output?

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TimmyRaa wrote on 11/17/2003, 7:59 AM

I appreciate what everyone's telling me - interlaced video viewed on a monitor will have interlace artifacts. I am trusting you guys, and rendering my MPEG2 video (for DVD) as interlaced, *with* the artifacts - I hope they disappear on the TV!! :o)

Anyway, just to help me understand this a bit better, I wanted to know whether DVD films are interlaced or not. All my films look splendid when watched through both the TV and the PC. If my understanding is correct, surely it's a case of one or the other?

With regards to my situation, the original captured DV media files are all lower field interlaced, and I've plonked them into Vegas as lower field interlaced, and am rendering them to a lower field interlaced MPEG2 file. Horizontal artifacts are present. If I simply render back out to lower field interlaced DV AVI video, it looks perfect.

Anyhow, I guess the proof will be in the pudding!

netkoala wrote on 11/18/2003, 5:32 AM

properties
choose lower or upper
choose interpolate or blend
done