I can make unpremultiplied image from premultiplied image in nuke.
But I can't make unpremultiplied image in after effect.
I set up project settings 32 bits per channel, sRGB IEC61966-2.1, Linearize Working Space.
I tried to RGB divide Alpha chanel. But It makes white edges. (Usually I make unpremuliplied images this way in nuke)
And I tried change footage's Alpha option(Ignore, Straight, Premultiplied), but It doesn't work.
How to make unpremultiply image?
Effects --> Channel --> Shift Channels/ Channel Mixer/ Whatever
Effects --> Channel --> Remove Color Matting