Answers.Body: <p>What you want is called a <a href="https://www.youtube.com/watch?v=DI3v5TK4sYM" rel="nofollow noreferrer">Gradient Wipe</a> in Premiere Pro or a <a href="https://www.youtube.com/watch?v=rp9re6HnXoM" rel="nofollow noreferrer">Luma Fade</a> in Davinci Resolve.</p>
  
  <p>Just make sure your gradient image is a 3rd layer as long as your transition, and is selected as the 'gradient layer.'</p>
  
  <p>(This should be a comment but I don't have enough karma to comment in this forum. Hope this helps :) )</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-10-08T14:52:41.783Z
Answers.Text: No, in fact this is an answer, :o) Let me explore it and come back. Thanks.
Answers.UserDisplayName: Rafael
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-10-08T18:31:48.597Z
Answers.Text: I'd be interested in seeing a solution to this using FFmpeg. There is a way to [merge two videos with a png mask](https://stackoverflow.com/questions/36467594/ffmpeg-add-alpha-channel-to-a-video-using-a-png-mask) and I'd assume it works with a video mask, but you'd still need a way to convert the single gradient image into an animated mask.
Answers.UserDisplayName: evn
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Answers.CreationDate: 2019-10-08T14:40:50.857Z
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Answers.UserDisplayName: evn
Body: <p>I remember some old video editing programs used a grayscale image to be used as a transition pattern.</p>
  
  <p>Basically what they did was using the different levels of a grayscale image as a step for the transition.</p>
  
  <p>Here is an example. Given the first image, when the program was analyzing the gray level marked with the red line as a threshold, the transition would look like the image below.</p>
  
  <p><a href="https://i.sstatic.net/cf7fJ.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/cf7fJ.png" alt="enter image description here"></a></p>
  
  <p>Do you know if that can be done in a free program like Davinci Resolve, Hit Film, probably Blender?</p>
  
  <p>And a tip of how can be implemented?</p>
  
  <p><sub>images by pixabay</sub></p>
  
Tags: <video><editing><transitions>
Title: Program that uses grayscale images to make transitions
UserDisplayName: Rafael
ThreadText: # Program that uses grayscale images to make transitions
  
  (Asked by: username_0 on 2019-09-28)
  
  I remember some old video editing programs used a grayscale image to be used as a transition pattern.
  
  Basically what they did was using the different levels of a grayscale image as a step for the transition.
  
  Here is an example. Given the first image, when the program was analyzing the gray level marked with the red line as a threshold, the transition would look like the image below.
  
  [![enter image description here](https://i.sstatic.net/cf7fJ.png)](https://i.sstatic.net/cf7fJ.png)
  
  Do you know if that can be done in a free program like Davinci Resolve, Hit Film, probably Blender?
  
  And a tip of how can be implemented?
  
  images by pixabay
  
  **Tags:** video, editing, transitions
  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_1 on 2019-10-08. Score: 1 | Accepted answer
  
  What you want is called a [Gradient Wipe](https://www.youtube.com/watch?v=DI3v5TK4sYM) in Premiere Pro or a [Luma Fade](https://www.youtube.com/watch?v=rp9re6HnXoM) in Davinci Resolve.
  
  Just make sure your gradient image is a 3rd layer as long as your transition, and is selected as the 'gradient layer.'
  
  (This should be a comment but I don't have enough karma to comment in this forum. Hope this helps :) )
  
  > **Comments:**
  > **username_0**: No, in fact this is an answer, :o) Let me explore it and come back. Thanks.  
  > **username_1**: I'd be interested in seeing a solution to this using FFmpeg. There is a way to [merge two videos with a png mask](https://stackoverflow.com/questions/36467594/ffmpeg-add-alpha-channel-to-a-video-using-a-png-mask) and I'd assume it works with a video mask, but you'd still need a way to convert the single gradient image into an animated mask.  
  
  ---
  
  