Alpha causing dark edge?

[avpromedia]

I made a snow fall clip in AE and exported it to quicktime with alpha.

When I test this clip in premiere and put a color matte under the snow, I see dark edges around the "snowballs". I can remove this dark edge if I use the blending mode "lighten" in premiere, but how can I fix the export in AE so I don't need to change blending mode in premiere?

I tried exporting it with straight alpha instead of pre multiplied, it doesn't help. I tried using media encoder instead of direct export, it also doesn't help (and ME doesn't offer the option straight alpha or pre multiplied).

What is the solution?

[nishu_kush · Accepted solution]

Thanks for reaching out.

Do you mind letting us know the method you used to create the snowfall? If you used Particle World, Faded Sphere gave me better results than Shaded Sphere in the Particle Type dropdown.

Let me know if that helps.

Thanks,
Nishu

[avpromedia]

Faded sphere fixes the problem. Thanks.