Frames or Fields?

[skouloukos]

Frames or Fields?
I am trying to chroma key 4 persons on a New York backround.
They are shot on progressive video.No problems with the key.
Now I want to move them with a dve motion from right to left as if they are
on a mooving surface.Everything jitters like hell when I render frames.
Rendering on fields does not jitter but... looks like a key.The spot
will be played both on tv & the cinema.Can someone please help?
Thanks.

[vincelapince]

two solutions

add motion blur to minimize the jitter effect

or render on fields, but smooth the edge of your key a lot...

i think the first is better...

[netviper]

Crete a traveling matte like in the cmi keying video

[sinancg]

Render in frames and use motion blur, the fields will show up ugly in cinema since it is progressive.

Sinan Vural

[skouloukos]

HI ALL .THANKS FOR THE REPLIES.
WE ARE RENDERING IN FIELDS WITH AN EDGE
SOFTNESS . THIS LOOKS OK ,BUT THE CINEMA VERSION?

[BergMeister]

That depends if you are transfering to 35mm or projecing from tape.. either way you sould render interlaced

[FLGB]

Did you apply the moving node before or after the keying node?

[edika]

Did you apply the moving node before or after the keying node?

I applied the moving node on the keyed image but I also applied it on the image aswell before keying so that I could test but same effect. No matter what I do when I move my node with a frame render it is always jurky doesn't matter how much motion blur I apply! Only a field render gives me a smooth flow and clean Image. When I pause my video on the other hand the image flickers between the two fields...so what will happen when it is transferred to film?

alex@media

[solun]

hi,

I got problem with field too in add 3D elements into live footage. Should I render 3D elements with field before import, or I can just import the rendered images with field 1 or field 2 options.


BTW , can the image be splited into field when it's imported with field options.


solun