Filter: openfx.net.sf.openfx.Premult

Plugin Information

title: PremultOFX
media types: Video experimental
description: Multiply the selected channels by alpha (or another channel).

If no channel is selected, or the premultChannel is set to None, the image data is left untouched, but its premultiplication state is set to PreMultiplied. See also: https://web.archive.org/web/20210413043727/http://opticalenquiry.com/nuke/index.php?title=Premultiplication

version: 2
creator: mr.fantastic mrfantastic@firemail.cc
license: GPLv2
URL: https://openeffects.org/

Parameters

NatronOfxParamProcessR

title: R
description: Multiply the red channel.
type: boolean
readonly: no
required: no
animation: yes
default: 1

NatronOfxParamProcessG

title: G
description: Multiply the green channel.
type: boolean
readonly: no
required: no
animation: yes
default: 1

NatronOfxParamProcessB

title: B
description: Multiply the blue channel.
type: boolean
readonly: no
required: no
animation: yes
default: 1

NatronOfxParamProcessA

title: A
description: Multiply the alpha channel.
type: boolean
readonly: no
required: no
animation: yes
default: 0

mlt_origin

title: Top-Left Origin
description: Set to 1 to use MLT top-left image origin instead of the OFX bottom-left origin. Use for plugins that crash or produce incorrect output with negative row bytes.
type: boolean
readonly: no
required: no
minimum: 0
maximum: 1
default: 0
widget: checkbox

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MLT enables you to author, manage, and run multitrack audio/video compositions. Copyright © 2008-2026 by Meltytech, LLC.

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