Re: [FCP-L] Best way to Matte White Screen

OH, white keys. But then the actors/objects might all have a bit of
white on them. or a brightness level that hits white and BOOM, you
see right through it. And the edges of the actors/objects... they can
be pretty horrid too. There is a good reason people use green and blue.

-shane

On Oct 24, 2009, at 9:00 PM, Robert Griffiths wrote:

> 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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>>
>>
>
>
>
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