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Old 30th August 2005, 19:16   #37  |  Link
mic
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Join Date: May 2003
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@trevlac
Not to worry about tape vs preview -- thanks for reply to it
Basically I was just trying to add to experience and info on overlay render from preview vs print to tape which should cause render and use of avi file.

If it helps understanding...
Any image with 1 line or pixel height should dance on interlaced TV, and if it doesn't, then either the picture's being deinterlaced or blurred to take up 2 or more horizontal lines. How noticable it is can vary quite a bit.

Quote:
Originally Posted by trevlac
... All the images shake. Mainly on the diagionals as I mentioned before. The composite and F-connector introduce xtra color in the detail. The LCD actually shakes the least, but I think this is due to the bluring effect of the LCD monitor.
Earlier link:
http://download.microsoft.com/downlo...b45/MCEVid.doc might help or be of interest... If I read correctly, the still posted earlier is designed for testing deinterlacing on something like HTPC or MCPC, and should dance on anything interlaced. On LCD if fed progressive shouldn't see effects at all -- so if you used progressive player, might not be working as it should.

At any rate, it's supposed to shake on a TV. If you look at the image closely, you can see the alternating bands of white in lines that are one pixel tall. As player translates these one pixel lines to fields, and as one field is not refreshed, lines go away & reappear causing moire dance. My wife loved it!
Quote:
Originally Posted by trevlac
Basically, the best thing to do is always to use a higher-resolution image than you need and downsample to an interlaced frame.
Actually as far as a PC is concerned, an image is an image, whether it shows effects resulting from being interlaced or not. Rendering an image to video most NLEs will record it pretty much as is -- on playback every other line will be taken as a field, or in the case of mpg2 23.976 or 24 p, pulldown will duplicate frames. It is better to use a slightly oversized image (Adobe.com lists recomended sizes) because that will produce better results during render with resampling to DV/DVD pixel aspect ratios.

The Commodore monitor sounds pretty decent.
FWIW, wonder if it's a bit like the old Amiga monitors. If so, think the color models are a bit different -- If I remember correctly there still are settings in some PC software to compensate for Amiga output.
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