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DNxHD Rendering: Straight (Unmatted) vs Premultiplied (Matted), for videos without transparency

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Erik Eikeskog
DNxHD Rendering: Straight (Unmatted) vs Premultiplied (Matted), for videos without transparency
on Apr 22, 2020 at 9:58:35 am

I'm wondering about how these settings affect general video quality with regards to color information..

I see that the file I get from a straight (unmatted) render is 3 times the size of a premultiplied (matted), and I wonder why this is so. What kind of information gets lost with the other?

The videos I render are not yet color graded, I will do that later, so if I get more color information by going for straight (unmatted), this is obviously a better option, but if there is no difference I will of course take the smaller filesize 😃

Does anyone know?


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Tero Ahlfors
Re: DNxHD Rendering: Straight (Unmatted) vs Premultiplied (Matted), for videos without transparency
on Apr 22, 2020 at 10:42:07 am

https://www.cgdirector.com/premultiplied-alpha-vs-straight-alpha/


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