• Avid Media Composer

  Picture controlled wipe effect

  Posted by Jennifer on July 22, 2005 at 2:59 pm

  Hi Everyone,

  I am trying to make a custom wipe using the gray-scale values of a picture to control the wipe.

  Example: In Photoshop, I created a gray-scale image (a word in black that fuzzes through gray to white at the edges and corners of the picture). I then applied a luma key to the video (in V2) that I wanted to key over. I am having problems trying to get the luma key to use the picture as its wipe controller.

  I feel that there has to be a way to do it but everything I have tried doesn’t work.

  Jennifer
  Struggling AVID Editor

  Charley King replied 21 years, 1 month ago 2 Members · 4 Replies
• 4 Replies

• 

  Charley King

  July 22, 2005 at 5:34 pm

  Not working for me either, have to think about why it isn;t working. I know what you are attempting, but not sure the method is right for it.

  Charlie
• 

  Jennifer

  July 22, 2005 at 7:25 pm

  Specifically, I put the luma key on the video in V2. Then, stepping into that effect, I put the grayscale image into the layer below.

  Then I applied the BCC Make Alpha effect to the grayscale image and set the output to a gel.

  I thought that the resulting crisp image would make it easier for the luma key to work. (The gel output sends out a black and white image with a gray haze only where the change was occuring. This black and white image changed over time.)

  It kinda worked but during the duration of the effect, there was either a black or white
• 

  Jennifer

  July 22, 2005 at 8:48 pm

  Ok, I got it to work but it seems very clumsy. I had to use 3 video tracks:

  V3-foreground video
  V2-grayscale image to control the key
  V1-background video

  On V3 I put the
• 

  Charley King

  July 22, 2005 at 9:42 pm

  [Jennifer] “On V3 I put the

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