Anti-aliasing Filter or Plugin for Vegas

Joelson wrote on 4/26/2020, 9:27 AM

Does anyone know any filter or Antialiasing plugin to use in Vegas?

I noticed that when resizing the video to smaller resolutions, the edge of some video events is very serrated.

In the example video I used for the screen recording, I used a lower third. Note that, by lowering the video resolution, the lower third edges are very serrated.

This does not occur in Adobe Premiere, as Adobe products use Anti-aliasing filters natively.

https://helpx.adobe.com/photoshop-elements/key-concepts/aliasing-anti-aliasing.html

If this feature is not yet part of Vegas, it may be a good idea to add it in the future as it is sometimes a very useful feature.

Comments

Musicvid wrote on 4/26/2020, 10:49 AM

Use Photoshop to create your text overlay PSD, at exact fit for project resolution, and do not enlarge it in Vegas. If there is an animation reason to use AVI, do the sequence in Photoshop, and again do not exceed maximum text resolution.

Smoothest transparency edges are by using Premultiplied Alpha.

Vegas is not a vector editor, and that's what you would need, not dither or more antialias.

Unfortunately, your unzipped .rar does not play in Windows 10.

Joelson wrote on 4/26/2020, 12:10 PM

Hi @Musicvid

Its logic makes sense. I make my animations in After Effects and not in Photoshop. But I believe that if the video is rendered in After Effects in the exact resolution as you recommended, it will also work. I will do some tests here and come back to inform the result.

For several reasons I still use Windows 7. Perhaps the file did not open on your windows 10 because I used the Grassvalley HQX intermediary codec in the AVI container.

Thank you very much for your tip!

john_dennis wrote on 4/26/2020, 12:33 PM

You might be chasing your tail. When you saved the 960x540 snapshot the Preview Quality was set to Good (Full).

Change it to Best (Full) and see what happens.

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Musicvid wrote on 4/26/2020, 1:02 PM

But I believe that if the video is rendered in After Effects in the exact resolution as you recommended, it will also work

I believe that too.

I never installed Grass Valley on Win 10. It won't play in VLC.

Musicvid wrote on 4/26/2020, 2:44 PM

There is artifacting in the alpha layer. Was this done from a scanned or hand drawn graphic?

A generated graphic should not show this.

I don't see much actual text aliasing, as one would expect from rasterized 1st generation text.

adis-a3097 wrote on 4/26/2020, 2:48 PM

How does the .png, rendered at 960x540 out of PS, look when you open it in Photo Viewer, and resize it to full screen?

Joelson wrote on 4/26/2020, 3:22 PM

How does the .png, rendered at 960x540 out of PS, look when you open it in Photo Viewer, and resize it to full screen?

Hi @adis-a3097

The result is the same in any viewer.

adis-a3097 wrote on 4/26/2020, 3:54 PM

How does the .png, rendered at 960x540 out of PS, look when you open it in Photo Viewer, and resize it to full screen?

Hi @adis-a3097

The result is the same in any viewer.

Same as in "serrated" in any viewer?

If yes, then it goes to tell you that you shouldn't render to 960, then blow it up to 1920 in the viewer - and expect 1A results. It's you who makes it "serrated", not Vegas. Justo don't get me wrong...:)

Former user wrote on 4/26/2020, 4:00 PM

Why are you rendering UNMATTED. Try the other option.

Musicvid wrote on 4/26/2020, 7:36 PM

To keep from going around in circles again, @adis-a3097 is suggesting exactly the same thing I did, which I believe to be correct, since running the tests over 15 years ago, and repeating them in the same context last year. If the source image resolution is 960x540, it shall be 960x540 in the output frame. This has essentially nothing to do with aliasing.

Use Photoshop to create your text overlay PSD, at exact fit for project resolution, and do not enlarge it in Vegas.

You provided a link to an uncompressed AVI, but then took it down. Artifacting in the alpha layer at any setting is not normal, and I suspect that part of your issue may be happening in AE, perhaps from not leveling your compressed, clipped YUV source first?

Good luck, Joelson!

Joelson wrote on 4/26/2020, 8:35 PM

Hi @Musicvid

I decided to follow his recommendation to render the output source in After Effects at 960x540 resolution and it worked correctly. The final result was the same as that of Premiere.

It would be great if Vegas worked similarly to Premiere when resizing the project, as this would prevent a new rendering in After Effects, but as this is not yet possible, I will work that way in Vegas.

I'm sending you the original files rendered in After Effects in resolutions 1078x342 and also 960x540 in Premultiplied (Matted) mode to avoid the artifacts.

https://www.dropbox.com/s/2j4dxj5ohmdpnt2/Lower%20Thirds%20for%20Musicvid.rar?dl=0

Thank you very much for your tip. It worked perfectly.

 

Musicvid wrote on 4/26/2020, 10:09 PM

Here's a sweet article from Adobe concerning vector vs. raster graphics. It should clear up some things for you.

https://helpx.adobe.com/photoshop-elements/key-concepts/raster-vector.html

Vegas, not being a photo editor, is a bitmap program, not a vector processor.