BCC Premult

Category: BCC Key and Blend

Effect Name: BCC Premult

The BCC Premult filter, part of the BCC Key and Blend category, sets the color channels of all transparent pixels to a selected color, giving the user control of the color that is mixed in these cases.

When an image with a premultiplied alpha channel is composited over a new background of a different color, the edges of the alpha channel show a “fringe” of the old background, because the edges of the alpha channel were blended with the original background color information. Premultiplied Alpha Key keys out most of this unwanted color.

Working with the Filter

Presets and Common Controls

• BCC filters come with a library of factory installed presets plus the ability to create your own custom presets and preview them with the BCC FX Browser™.
• BCC filters also include common controls that configure global effect preferences and other host-specific effect settings.

For more information about working with presets and other common controls, Click Here.

• Premult With Color: Sets the color that will be removed.