Interlace confusion!
by Alan Lacey
on
Aug 25, 2008 at 10:24:28 am
I'm rendering out some PAL m2vs for a SD DVD5 and am a little confused about interlace.
My source material is 60% DVcam, 40% prores HQ (studio greenscreen)
The final m2vs will be made from DV and prores sequences in FCP 602.
Firstly, can I make the m2vs from either flavour sequence (dv>even fields, whereas proresPAL will be odd) What's DVDSP expecting or perhaps it doesnn't matter?
Secondly the prores sequences will have a lot of the DVcam material slomoed in the background of the green screen. I guess the sequences will need to upper field first and when I bring the DVcam material into thess seqences FCP adds a -1 field shift filter. But what's the workflow for the slomos? Should I slomo before insertion into the preores sequence or in the sequence?
Any guidance or help would be gratefully received here.
I will get a chance to view on a broadcast monitor just before exporting the m2vs, but I'm working offline overwise (15 inch MBP) and obviously would prefer not to have too many interlace issues to resolve when I finally do get to preview properly.
Re: Interlace confusion! by Rafael Amador on Aug 25, 2008 at 11:33:24 am
[Alan Lacey]"Firstly, can I make the m2vs from either flavour sequence (dv>even fields, whereas proresPAL will be odd) What's DVDSP expecting or perhaps it doesnn't matter? " MPG2 can be Upper or Lower. No problem when playing.
You need to be careful when making the MPG2 that the application understand the field order of the incoming movie. In Compressor you can check manually the field order of the movie and select "As the source" for the field order of the MPG2.
Next time you can capture the Proress as Lower first and avoid messing with the field order. Everything Lower.
[Alan Lacey]"But what's the workflow for the slomos? Should I slomo before insertion into the preores sequence or in the sequence? " Try to make all the rendering at once. When you had everything ready in your Proress sequence, set "Render all YUV in High Precision" and render.
If you are working with DV footage you can improve a lot the look of your picture with a Smoth/Sharpening Chroma filter. For PAL the only available are in the Nattress "Big Box of Tricks" or Nattress Film Effects.
rafael
