• Blackmagic Design Fusion

  Beginner’s Question: Black Halo around Mask

  Posted by Florian Gintenreiter on October 22, 2017 at 8:45 pm

  I just started out learning Fusion, by recreating a comp I did in AE and ran into a peculiar issue that I don’t even know how to google. I’m sure it’s pretty basic, so don’t be too hard on me. I’m trying to composite two lockoff-shots with a MERGE tool. I added a mask to the foreground-shot. As soon as I soften the edge of the mask, I get a black glow instead of a somooth blending of the foreground into the background as one would expect. Looks like some premultiply-issue. How do I go about doing this correctly?

  

  ________________________________________
  Director of Photography, Director, Editor
  Vienna, Austria

  Mark Suszko replied 8 years, 7 months ago 3 Members · 2 Replies
• 2 Replies

• 

  Simon Ubsdell

  October 23, 2017 at 6:05 pm

  Can you post more details of how you are building your flow, preferably with a screenshot? You shouldn’t be seeing this …

  Simon Ubsdell
  tokyo productions
  hawaiki
• 

  Mark Suszko

  December 1, 2017 at 5:23 pm

  Does it happen if you swap the order of layers and mask the other side of the twin shot?

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