• Apple Motion

  Motion 5 – transparent masks

  Posted by Ryan Walker on July 11, 2011 at 5:05 pm

  I have keyed out a rotating object in Motion 5. The keying process took care of most of the unwanted background, however there was still a bit showing. To get rid of this, I created a rectangle mask and key framed out the unwanted pieces. This worked perfectly when I needed to export a .mov file. But now I have been asked to deliver this file as an .flv with a transparent background for a web page. I know how to bounce with the background as an alpha channel, but my mask still shows. How do I make the mask transparent like the background?

  Andy Neil replied 14 years, 10 months ago 3 Members · 4 Replies
• 4 Replies

• 

  Jimmylee Remillard

  July 11, 2011 at 5:21 pm

  Make sure that the keyed footage is actually transparent and not just showing on black. Masks should be transparent, I would double check your masking properties and see if needs to be set to Intersect or Replace (instead of add or subtract)

  Jimmylee Remillard
  Partner / Production Manager
  iMotion Video Corp.
• 

  Ryan Walker

  July 11, 2011 at 5:37 pm

  I created a rectangle to mask, then converted to mask.
  

  So I should convert this to a mask then chose Replace or Intersect?
• 

  Ryan Walker

  July 11, 2011 at 5:44 pm

  I’m sorry, I created a rectangle, not a rectangle mask.
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  Andy Neil

  July 11, 2011 at 6:33 pm

  You can convert your rectangle to a rectangle mask by dragging and dropping on your video clip. Then you need to invert the mask because you want the rectangle to hide what it’s enclosing, not show.

  Andy

  https://www.timesavertutorials.com

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