I'm having a problem when I sharpen a video, then render it, it causes some sort of weird interference; like blur and horizontal lines. It's only when it's rendered though. If I don't render, it doesn't cause the issue. Also, I can scroll through the sharpen percentage, and only the percentage I render at, will give the effect. Other percentages will not be affected.
Properties: 1920x1080 30fps progressive 30Mbps
I'm encoding to H.264 1920x1080 30fps progressive 30Mbps
The export shouldn't make a difference though, as I can see the interference in the sequence preview.
The sequence is made from the clip, if that helps to note.
Here take a look:
Rendered (sharpened at 10)
Not rendered (sharpened at 11):
Let me tell you, this is annoying.
To actually get rid of the fields, you may want to send your footage into after effects. Then right click on the clip and go to interpret footage-main. There you should make sure in the fields and pulldown section that you have it set to probably upper field first for HD footage. If that doesn't work you could try lower field first. Then see if it removes those lines. You can still sharpen back in PP or do it in AE.
No, the source is progressive. And I can see the lines in the preview. Like I said, if I render manually they will be there. If I don't render manually and let the program perform it on the export, they won't appear.
That was a reply for joe.
But the thing is it's only when it's being sharpened. If I render the video and export, even with other filters like brightness/contrast, no lines. If I sharpen and export, no manual render, no lines. But when I apply the sharpen effect, render, then export, the lines show.
Sometimes it can be very hard to see interlacing. It may be more obvious
when you are paused on certain frames, or may not be obvious at all.
Regardless it very much looks like its there. Most US TV stations and
TVs are working at 1920x1080 29.97i. Or interlaced. So I wouldn't be
surprised if that was the frame rate most video game systems were
playing back at as well.
Again, not sure why you get the difference between two types of renders.
When you say, when you "render it manually" vs just exporting, what do
Oh, I'm sorry! Actually if I apply any effect and render it will cause the lines.
By rendering it manually, I mean Sequence>Render Effects in Work Area or Render Entire Work Area then export when I'm finished, rather than just exporting and having PP render.
Or does PP even render when you simply export? Or maybe it just doesn't render Quicktime?
Ok so I did a few tests;
Sequence made from clip>apply effects>render>export = lines
Sequence made to match clip(same settings as sequence made from clip, just made manually)>apply effects>render>export = better, but a bit blurry
Sequence with upper field>effects>render>export = no lines
so if upper field is what fixed it, then why do the others work when I don't manually render?
Again, are you checking the box that says "Use Previews" when you export?
If so, that is probably why.
Premiere may have used a low-quality render codec like iframe mpeg as
the default. So by using those previews you would be degrading your
final image quality.
Sorry, I never saw you ask if I've used that setting before. Yes, I "Use Previews"
But keep in mind, I see the difference in the sequence preview, so I can't be because the export. This issue is regardless of the export because if I don't render them, they're how they should be, exported or not. If I render them, they become weird. Except for the one where you said try upper field first, that one is good.
So, I'm left with 2 questions;
Should I always have the upper field first when working with HD, or is it just some captured videos that require it?
and why is the video okay when I just export it, but looks bad when I sequence>render work area>export?
Using the "use previews" setting will use your in sequence renders for
your export. So YES they are related. Check your sequence settings and
see if they are i-frame mpeg or something like that for your renders.
Chances are they are.
Your best bet would be to create a new sequence manually. Proper frame
rate and frame size, and for renders use something like custom-
quicktime and choose an uncompressed or prores. If you are on a pc, then
maybe use avi or whatever native hires settings you have. OR if you
don't want to do this, don't "use previews" on export. It may still look
wrong in your sequence due to your low quality render setting, BUT it
should be right on export.
you may want to watch these, whether you are coming from fcp or not
there will be good advice.