Good Pixel speeds for Scrolling credits

[Eugene Lehnert]

I don’t know. I found the 120 pixels/second rate inside of one of Trish and Chris Meyer’s After Effects books a long time ago. That speed combined with rendering the file with fields looks the best of any scroll I’ve seen on an interlaced monitor. Granted it doesn’t look good on the computer screen and it’s kind of a fast speed. I’m doing some tests with that expression you kindly provided but the results not not seem as clear but the scroll does not seem to have the same speed as 120 pixels/second. I believe Trish Meyer also mentioned that you would have to go to 240 pixels/second for another speed but that would be incredibly fast.

[Todd Kopriva]

There’s information about creating rolling credits here:
“Best practices for creating text and vector graphics for video”

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Todd Kopriva, Adobe Systems Incorporated
putting the ‘T’ back in ‘RTFM’ : After Effects Help on the Web
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[Marc Thomas]

“But a much smarter guy than me figured out a solution. From Kevin Camp, here’s an expression for flicker-free credit rolls. Just copy the stuff in bold and paste:”

Hi Dave, I’ve been reading stuff for 2 days now about the “mercury jones” preset (which I can’t find anywhere) and expressions.

I’m still very new to AE, can you please explain to me where I’m supposed to paste the expression you posted?

I never thought it would be this difficult to make rolling titles. It takes no time at all in Premiere Pro, but obviously I’m spending a lot of time trying to learn so I can make titles that don’t flicker.

Am I supposed to use a camera with a null object to move the titles? I also tried using “autoscroll” but I can’t seem to start the titles off-screen, and it won’t show me what’s written off screen (it just keeps repeating what is actually showing on-screen). I’m assuming it has something to do with “motion tile”, but I have no clue.

Please help me. I’m so confused.

Thanks in advance,

Marc

[Marc Thomas]

I pasted the expression and I get this warning:

After Effects warning: class ‘layer’ has no property or method named ”

expression disabled.

I’m not sure if I’m supposed to enter a “rate” or if the expression is just supposed to work by itself?

You also said, “Follow Kevin’s instructions in the post” I don’t know what post you’re referring to?

And lastly, I couldn’t remember anything wrong with Star Trek’s credits so I popped in the Bluray to check, and I can’t see what you mean?

Thanks for your patience Dave,

Marc

[Michael Nichols]

I have a silly question:

My film was 2 perf 35mm (2.35:1) and I did a 2K scan, to finish at 1920×1080 (with an image are of 1920×817 for the 2.35:1 frame matted in) for HDCAM-SR delivery. I just finished my credits and I have used the wonderful expression here to get nice and smooth credits. My only question is this: Should my credits also be 2.35? Should my AE comp be 1920×1080 and scroll the 16:9 frame vertically or should the comp be 1920×817 and maintain the 2.35 frame?

Abel Cine Tech – Rental Coordinator
We now have Red and SI-2K in our Rental Fleet!
212.462.0163 • mnichols [at] abelcine [dot] com

[Michael Nichols]

Hey Dave,

Thanks for the reply. I guess, since I am the client, I answered my own question. I built the comp in a 2.35 frame. Just wanted to make sure there was a standard set already when finishing 2.35 to tape.

Abel Cine Tech – Rental Coordinator
We now have Red and SI-2K in our Rental Fleet!
212.462.0163 • mnichols [at] abelcine [dot] com

[Michael Nichols]

[Dave LaRonde] “Excellent! You should then be able to get a lightning-fast answer on whether the product you need to deliver should be 1920×1080 anamorphic to be used at 2.35:1, or letterboxed to accommodate 2.35:1…. and I think you already have the answer

The only potential problem: to sit smack-dab in the middle of a 1920×1080 frame, your animation’s center point will have a half-pixel vertical value: it’s an odd number, not even. Or you have to make a choice: one pixel too high, or one pixel too low.”

Well, I am going letterboxed (matted?) because I am a little unclear on any other way. My files are native 2.39 (1868×780 DPX scans) that I have to scale up and matte into a 1920×1080 frame. Is that not the correct method for this?

Regarding your 2nd point, I am confused as to why that would pose a problem (half pixel vertical value for center point). Would that disrupt the math?

Abel Cine Tech – Rental Coordinator
We now have Red and SI-2K in our Rental Fleet!
212.462.0163 • mnichols [at] abelcine [dot] com

[Margaret Eaton]

Thank you — can you please tell me where to “paste” that expression. I am a novice, working in FCP 7, I’ve completed a 30 minute doc film, looks great (thanks to many tips I’ve taken from you directly, and other Creative Cow contributors) – except for the darn credits, they are jittery. Would like to start over and build in Motion 4.

How do I get that value/rate into my settings in motion? Any guidance or advice would be greatly appreciated.

Margaret

[Grant Nellessen]

Hi Dave,
I made my crawl text in illustrator and put in into a 1920×1080 comp in after effects. I’m on a mac, so I option-clicked the position stopwatch and pasted the expression. It didn’t work… i got an expression error. The process you describe seems pretty cut-and-dry, but it didn’t work… any ideas?
Thanks,
Grant

[Lisa Missenda]

Hi for those working in AE CC2018 the expression worked when I deleted the last /