Sure white keys... any color can "key"... and for traditional keying,
some much better than others. I never said mine was a usable matte in
the traditional sense... I said it looked horrible. The situation I
described is a cheat. And the few times I've used it, a pretty good
one. If you want to see what it looks like, go here:
http://www.firedancer.tv/
- Click Reel
- Click Page 2
- Philanthropy/School Nurse Fellowship
That is a white key. A 14 year old white key. First version of
Primatte, if I remember right... or Ultimatte.
Brett was looking for a way to get out of a tight spot. I offered one.
---
Bob
------
Robert Griffiths
http://www.FireDancer.tv
On Oct 24, 2009, at 7:36 PM, Robin S. Kurz wrote:
> No matter how you put it, you're painting the infamous lipstick on the
> pig. White does not key. Period. It screens, it overlays, it does NOT
> "key", it is a practical impossibility by definition. If it were a
> mere question of "avoiding a color", then the colors blue and most of
> all GREEN would not be standard as key colors. Look at a color wheel
> or even video scope and you might catch why...
>
> You will NEVER pull a usable matte based on WHITE unless of course
> your foreground plate is *completely* black. Not without a massive
> amount of garbage mattes that is, in which case you might as well
> roto.
>
> - RK
>
>
>
> On 25.10.2009, at 01:31, Robert Griffiths wrote:
>
>> Not entirely... it works if you key back onto a white background and
>> go with that as the look.
>>
>> Years ago, I shot interviews (waist up) with people in various
>> locations with different crews on white seamless backgrounds. The
>> goal was to create the "Mac vs PC" look. Green or blue keying at the
>> time resulted in too much clipping and ringing to get a clean,
>> natural
>> look on white. So we shot them on white and softly keyed the various
>> shades of white backgrounds out and keyed in a common white
>> background. If you looked at the mattes, they were horrible with bits
>> and specks you would never put up with in a normal key. But it
>> worked. Strict rules: NO white clothing, buttons, silver jewelry,
>> etc. One clown showed up in a white shirt under his jacket that I
>> fixed with a holdback matte. Anything near white like eyeballs and
>> teeth just seemed a little bit shinier that day. ;-)
>>
>> Of course, this was in the land of SD. I don't think I would try it
>> in HD. Brett, if you are going to put your subjects on anything but
>> white, you better start rotoscoping as Shane suggests.
>>
>> Hope it's a very short piece either way.
>>
>> Be well...
>> ---
>> Bob
>> ------
>> Robert Griffiths
>> http://www.FireDancer.tv
>
>
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