Premiere Compositing Help? at DVinfo.net
DV Info Net

Go Back   DV Info Net > Cross-Platform Post Production Solutions > Digital Compositing and Effects
Register FAQ Today's Posts Buyer's Guides

Digital Compositing and Effects
After Effects, Shake and everything else.

Reply
 
Thread Tools Search this Thread
Old March 20th, 2007, 04:24 PM   #1
New Boot
 
Join Date: Sep 2005
Location: Vancouver, BC, Canada
Posts: 16
Premiere Compositing Help?

Hello everyone,

I´ve tried searching for this, to no avail. My problem is simple: I´ve been experimenting with Detonation Films stock footage, and cannot seem to key the white background (from blood hits, dirt explosions, etc.) nearly as easily as the black background FX. When perusing their tips & tricks page, the boys that demonstrate the how-to make it seem really easy (but don´t use Premiere Pro)... but as I´m a complete FX noob, I´m having difficulty.

Can anyone take pity on me, and share the secret how to key white BG from said FX shots, without pulling the white from the desired effect, within Premiere?

Much appreciated!
__________________
Donovan Cerminara
Bull By the Horns Productions
bullbythehorns@gmail.com
Donovan Cerminara is offline   Reply With Quote
Old March 21st, 2007, 02:33 PM   #2
Regular Crew
 
Join Date: Feb 2007
Location: Manchester, UK
Posts: 82
Sorry not within Premiere :(
It's the wrong tool for the job you need After Effects or simlar (look for the threads below on keying green screen). Prem is basically an editor, it may have some keying tools within it (have not used it for a long time) but really it's not up to the job your asking it to do.
Andy Harding is offline   Reply With Quote
Old March 21st, 2007, 04:38 PM   #3
New Boot
 
Join Date: Mar 2007
Location: St. Louis, MO
Posts: 9
You can use the track matte option for black backgrounds, I know. But as far as I am aware of, not for white.
Jackson Carver is offline   Reply With Quote
Old March 27th, 2007, 11:54 PM   #4
Major Player
 
Join Date: Nov 2005
Location: Chehalis, WA
Posts: 513
Ok, here's how you do it.

1. Take your 'dirt hit' footage and put in the video layer 2
2. Take the footage you want to apply this to and place it in video layer 1
3. In the Effects pallet, select Keying->Track Matte Key and apply that to video layer 1
4. Now, go into your Effect Controls and set the Matte to video layer 2, Composite Using to Matte Luma, and then select the Reverse checkbox.

Let me know if that works out.

Jim
James Huenergardt is offline   Reply With Quote
Old April 6th, 2007, 09:23 PM   #5
Regular Crew
 
Join Date: Apr 2007
Location: Rochester NY
Posts: 66
I am having the same problem... Unfortunatly I am in the stone-age and using premiere 6... Anyone know how do this with AP 6?

Any help greatly appreciated...

(Sorry for thread hi-jacking)

Simon
Simon Jones is offline   Reply With Quote
Old April 11th, 2007, 10:17 AM   #6
Regular Crew
 
Join Date: May 2005
Location: Delhi/Albany, NY
Posts: 55
The Track Matte instructions that James posted should be relatively similar in premiere 6
Dylan Tucker is offline   Reply With Quote
Old April 12th, 2007, 08:49 AM   #7
Major Player
 
Join Date: Dec 2005
Location: Melbourne, AUSTRALIA
Posts: 735
Quote:
Originally Posted by James Huenergardt View Post
Ok, here's how you do it.

1. Take your 'dirt hit' footage and put in the video layer 2
2. Take the footage you want to apply this to and place it in video layer 1
3. In the Effects pallet, select Keying->Track Matte Key and apply that to video layer 1
4. Now, go into your Effect Controls and set the Matte to video layer 2, Composite Using to Matte Luma, and then select the Reverse checkbox.

Let me know if that works out.

Jim
I've been trying to do exactly the same thing. Your instructions get rid of the white perfectly but they've turned the red blood black and I cannot figure out how to move the blood image around to the right position in the frame.

Except that hitting REVERSE does the exact opposite of what we want - it takes the blood and makes it transparent and makes the unwanted space turn black.
__________________
John Hewat
Mammoth Media Productions
John Hewat is offline   Reply With Quote
Old April 14th, 2007, 12:50 PM   #8
Regular Crew
 
Join Date: Jul 2005
Location: Wiltshire, UK
Posts: 192
Ok - try this.

Put the "explosion" clip in an overlay video track (track 2 or higher) then switch on transparency from the effects pallete. From the options choose "luminance" and adjust the threshold and cutoff to suit. This worked fine on the demo clip downloaded from the detonation website. I haven't got their library footage so can't test that it works with that...

Hope this helps.
Graham Risdon is offline   Reply With Quote
Old April 14th, 2007, 08:56 PM   #9
Major Player
 
Join Date: Dec 2005
Location: Melbourne, AUSTRALIA
Posts: 735
I don't have a transperancy effect in my PPro.

But I applied a Luma Key to the overlay footage and made the settings:

Threhold 49
Cutoff 65

and it looks perfect.
__________________
John Hewat
Mammoth Media Productions
John Hewat is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

B&H Photo Video
(866) 521-7381
New York, NY USA

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Cross-Platform Post Production Solutions > Digital Compositing and Effects


 



All times are GMT -6. The time now is 06:31 PM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2025 The Digital Video Information Network