-
Avid Media Composer/Ultimatte Advantedge
I am trying to key a greenscreen using ultimatte advantedge and am having issue with crop edges showing up. Tried Spectramatte and couldn’t get near the quality of keying that I can get with ultimatte. This was shot on Panasonic SDX 900 50mb 16:9 widescreen taken in serial digital. It comes in anamorphic so I need to reformat the clip and also crop out some garbage on the left and right. the order of effects were
step 1. Cropping out garbage
step 2. Reformat 16:9
step 3. Then finally ultimatte key.
the key looks excellent but I have an edge where I did the cropping.
I did an exact reverse of that however because it see the key and background as first layer it then squeezes the background too. Edges are gone though.I am running Avid Media Composer Adrenaline 2.5.2 DNXcel on HP Workstation XW8200 3 Gig of RAM NVIDIA Quadra FX1400
Any suggestion would greatly be appreciated
Regards
Rodney -
1 Reply
-
You can crop with Ultimatte. I would apply your reformat effect, then Ultimatte, forgetting about cropping it with another effect. When you open Ultimatte you should be able to pull in the sides of your clip (I can’t remember exactly how and I’m not in front of the system). This will let you crop within the Plug-In. Check the help files of Ultimatte for specifics.
If that doesn’t work then create a matte with the title tool to knock out the areas you don’t want:
1. Add your reformat effect, Ultimatte–get a good key–then on the track above it apply a black and white Title with Black representing the areas you want to crop, white the area you want to keep.
1.1 The easiest way to do this title is to make one big white rectangle that covers the areas you want to keep in your key, then turn off the V in the title tool. The background will default to black.
2. Remove the Title Matte Key Effect, leaving you with only the black and white fill–drop a Matte Key effect on this and it should crop out the bad areas of your Keyed clip.
Let me know if it works. And if you know of any good tutorials for Ultimatte, let me know. I’ve got it, but I can’t for life of me figure out how to get a good key. Clearly operator error. Thanks!
Mike.
Reply to this Discussion! Login or Sign Up