Video Alpha Channel Problem

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Choi Changrak (fortune++at++tri.kbs.co.kr)
Mon, 17 Feb 1997 15:34:44 +0900 

-- 
Choi, Changrak        | 150-790
fortune++at++tri.kbs.co.kr | Technical Research Institute
(Tel) +82-2-781-5952  | #18 Korean Broadcasting System
(Fax) +82-2-781-5999  | Yoido Youngdeungpo Seoul Korea




Hi,
I want your help about alpha channel.
I use Onyx IR machine and Sirius option for broadcasting.
And I use Performer for programming.
When I open a window with performer command 'pfNewPWin()', 
the alpha value which is output by sirius breakbox is always '1'.  
I want to change this alpha value for the purpose of using 
ULTIMATTE-8 mat-in function.
But I couldn't it. I used 'pfClearChan()' with alpha value '0', 
but the alpha value which is output by sirius break box remaind 
unchanged.(the color value (r,b,b) was changed)
I think I missed some important or basic configuration.
If you have any solution for this problem, please send me a mail.


Good-bye





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