Premultiplied Alpha: Using zero Alpha to implement additive color

-

hi,

 

is possible tell ppro not ignore pixels having color values , 0 alpha value when in premultiplied alpha mode?

 

premultiplied alpha in these equations

out_alpha = (1 - new_alpha) * old_alpha + new_alpha

out_color = (1 - new_alpha) * old_color + new_color

should result in additive blending if new_alpha zero.

but in ppro nothing displayed.

 

sdkfileinfo8->vidinfo.alphatype set alphablackmatte. setting wrong mode?

 

best regards

-bjoern gdanietz-



More discussions in Premiere Pro SDK


adobe

Comments

Post a Comment

Popular posts from this blog

Soustraire une selection

-
Image
bonjour,   une image sera plus parlante pour expliquer mon problème : je souhaite appliquer une couleur/texture pour mes routes, j'ai donc utiliser l'outil plume pour délimiter le contour qui m'intéresse. or celui-ci comprend les terres pleins, auxquels je souhaite appliquer une autre couleur/texture, même problème pour le rond point par exemple. comment puis-je soustraire une sélection (pas sur du terme) pour retrouver un terre plein blanc svp ?   sur photoshop cela correspondrait soustraire une selection     en espérant avoir été clair !   merci bcp ! More discussions in Illustrator adobe
Read more

After Effects: could not find dvaeve_dialogs.txt

-
hello,   i getting error message when trying launch application:   after effects warning: file 'c:\program files\adobe\adobe after effects cs6 \supportfiles\dvaeve_dialogs.txt' not found.   the application working fine without issues until today. there has been no system changes on computer either.   any ideas on how resolve issue?   thank reinstall prgram.   mylenium More discussions in After Effects adobe
Read more

Illustrator cs6 "Invalid Serial Number"

-
i trying re-install adobe illustrator cs6 on new machine users old machine being retired. when enter serial no invalid message. i work ministry of transportation, ontario , purchased volume licensing. make things better, original person deployed doesn't work here anymore. have following if needed:   order number end user purchase number reseller purchase order number agreement number   please help chris for licencing issues have contact adobe support directly no 1 in forum can or here. More discussions in Adobe Licensing adobe
Read more