Text Crawl Tips?

Rain Mooder wrote on 6/10/2004, 12:52 PM
I have a Text Event that moves horizontally across the screen at a
sprightly rate using keyframes in Pan/Crop. I render the file out to
uncompressed and then I use it as an animated background in DVDA.

When I watch the DVD on my big TV it seems like there is some
interlace flicker on the leading and trailing edges of the text. I have the
field order right. If I squint a lot the flicker goes away.

If I render to DV and watch the video on my 13inch Sony pvm professional monitorI don't see any flicker or jitter.

I wondered if there might be some problem with the speed of my text in pixels per second relative to the interlace update rate (59.94). I made sure my text moves at a horizontally at a rate of one pixel per field update. That is, 59.94 pixels per second. This didn't solve the problem either.

Anyone have any tips for making a good text crawl that doesn't jitter?

Comments

TorS wrote on 6/10/2004, 2:16 PM
Choose force resample and reduce interlace flicker in the text event properties (rightclick it).
Tor
Rain Mooder wrote on 6/11/2004, 2:20 PM
I had "reduce interlace flicker" turned on already. I tried a render with "Force Resample" and nothing changed. If anything, it looks slightly worse. I'm going to try changing the field properties to "Upper Frame First" rather than "Lower frame first" because it really looks as if the fields are in the wrong order.
Grazie wrote on 6/11/2004, 2:33 PM
I see you are using it as part of a DVD, "then I use it as an animated background in DVDA." . . What setting is your Bit rate. I've had - last 24 hours - similar issues.

1 - Have you checked to see if the Preview looks clean and good? Yes?

okay ..

2 - What is your Bit rate for your MPEG file for DVDA? I've gone with Constant Bit Rate [CBR] 8000. Veags<>MainConcept defaults to a Variable Bit Rate [VBR] I've been told that this can go as low as 170 and can fluctuate . . I'm not sure what this all means yet . .but do DO try CBR 8000 . .it cleaned up my Tex/Credit rolls for DVD . .Looks Great now!!!

3 - Use some flavour of "RW" to make your tests on! Helps keeping the Coaster/PLatter production down . ..

4 -Keep breathing .. you'll get there .. . If I can so can you . ..

Best regards,

Grazie
Rain Mooder wrote on 6/11/2004, 4:34 PM
I found the problem. DVDA is assuming my video is Upper field first for some reason. If I render with the default, Lower first, I have a textbook field order error problem. If I render with upper field first, specifically, it looks great!

I think this is a feature of some sort...grumble... I'm moving this discussion over to the DVDA forum as my problem is DVDA specific (I hope!)....

http://mediasoftware.sonypictures.com/forums/ShowMessage.asp?MessageID=290860&Replies=0&Page=0