How do I zoom text smoothly

[Mike Kujbida]

Define “wobble”.
Do you mean a side to side movement or an up & down movement?
Is it severe, slight or somewhere in between?
The usual suggestions apply. That is, no extreme colours (i.e. stay within the 16-235 value range), no very thin or fancy fonts and watch what kinds of colours are going over what kinds of backgrounds.

Great Titles with the DV Codec is an excellent article that I highly suggest everyone doing any kind of text read.

[Joe Gaziv]

Mike,
It looks like annoying side to side movement. I tried white letters over black background and yelloa letters over black background – Still the same problem.

[Mike Kujbida]

Do you have web space somehwere that you can post a few seconds for us to take a look at?
If not, sign up for a free account (100 MB. limit) at YouSendIt, upload a few seconds in DV-AVI format and give us the link.

[Joe Gaziv]

Mike,
Here is the link:
https://www.youtube.com/watch?v=8o5JJNVrMJI
It is small format so the wobble less “stands out”

[Joe Gaziv]

Mike,
Just for comparison here is similar zoomed title which I’ve produced by Ulead’s MSP8:
https://www.youtube.com/watch?v=3HMVu2rzzuU

[Laszlo Kovacs]

Question back:
what was your render settings, text size?

I’v seen similar phenomenon zooming text on the preview window,
when preview was set to draft.

How did you this text zoom?
Don’t keyframe fontsize!

The way I do it:

1. create the text with a fonsize big enough for the maximum zoomin.
2. zoom it out with pan/crop
3. keyframe pan/crop to zoom it in at the desired speed

Instead of pan/crop you could use trackmotion too…

Vegas is surely able to do that smoothly for you.
Take a look at
https://www.kovacslt.fw.hu/videos/hun-bphires.wmv

at 00:35..00:39 there’s a semi-transparent text zoom,
quite smooth I think…

😉

By(t)e

K.L.

[Joe Gaziv]

Laszlo,
It is not the rendering since I see the problem already in preview window (on various resolutions – also on BEST). I did the rendering just in order to verify the problem and to send it to YOUTUBE for people to review it. Anyhow I rendered at variety of set-ups, starting with HiDev 1080-50i, continue with PAL MPEG and ending with AVI 7xx over 4xx – All showed the “wobble” problem.
The way I zoom was to have in the starting keyframe text size which I set up its properties -> scale to 0.4 and ending keyframe text with scale of 2.2.
I will look into the link you’ve set.
Reg,
Joe

[Laszlo Kovacs]

[joe123] “The way I zoom was to have in the starting keyframe text size which I set up its properties -> scale to 0.4 and ending keyframe text with scale of 2.2.”

No, no!
Wrong way!

Do it by pan/crop or trackmotion.

Hope I could help.

By(t)e

K.L.

[Mike Kujbida]

Laszlo is right!!

Pan/Crop is my preference for doing this kind of move.
I just tried this and, other than some anti-aliasing twitter on the line edges, it was very smooth.

Aother suggestion is to double the text size and there will be a difference in the final quality.
This is done in the size boxes in the Text Event FX box.
Change them from 720×480 to 1440×960.
These numbers are for NTSC. Adjust as necessary for PAL.

One other thing. If you’re using Vegas 6 or earlier, make sure to set the Smoothness value in the Pan/Crop box to 0 before you create any keyframes. This will avoid a title “bump” at the end of your zoom.

[Rob James]

Both excellent suggestions, Mike and Lazslo. I’m going to try both of those tips. What I have done in the past is simply apply a zoom video transition to the generated text. As in this example https://www.robjames.net/Pirate.wmv I never noticed any problems or wobble in the text, in either the finished MPEG2 or that .wmv version. So I’ll do a few tests and see which one yields the best results. Once again thanks for the tips!

Rob, https://www.robjames.net