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After Effects Premultiplied Alpha. 🔥Tutorial ALPHA MATTE LUMA MATTE en After Effects TUTORIAL BÁSICO YouTube Previous versions forced you to use premultiplied, because that confroms to the EXR spec. After Effects, Photoshop) are correct, the amount of matted color will be subtracted from your RGB Pixels by using the value in the alpha channel

In AE 2020 you can switch to Straight alpha from premultipled This allows AE to interpret the Alpha correctly on any edges.

Difference Between Straight Alpha VS Premultiplied Alpha in After Effects YouTube

In After Effects, for example, you might have your background set to blue, despite it being transparent. Premultiplied looks at what you're actually compositing in place of alpha In After Effects you Interpret the footage on import and set the Premultiplied - Matted With Color picker to White

Alpha Compositing Bartosz Ciechanowski. In AE 2020 you can switch to Straight alpha from premultipled Straight alpha channels, which are optimal, are purely defined by a level of transparency, without "premultiplying" it to any specific color.

Straight vs. Premultiplied Alpha 3D Graphics Overview YouTube. This allows AE to interpret the Alpha correctly on any edges. Learn how to work with premultiplied and straight alpha channels in After Effects, Nuke, and DaVinci Resolve Fusion.