Pictures and Transparency

In my last post, I mentioned I was working on a Jeopardy game in PowerPoint. In this game I want to present a series of visual clues before the answer is revealed. The audience is presented with the foreign cover for a popular book and has to guess the name of the book.

Book cover transition from greek to english cover version
Can you guess the book, by seeing its foreign (Greek) version cover?

I want to slowly reveal the English book cover, by gradually making the foreign cover more transparent. With this particular cover, I also wanted to crop the foreign cover image to reveal additional clues. Each clue will be revealed by a click of the mouse.

Hmm is this a problem? I can not control image transparency in PowerPoint, there is no option for this in the Picture Tools menu.

Nope, no problem at all. You can control image transparency by:

  1. Create a shape the same dimensions as your picture.
  2. Remove the outline for the shape.
  3. Change the fill option to Picture or Texture Fill and insert the picture file.
  4. Transparency will now be available

Its’ interesting that placing a picture inside a shape allows you to manipulate that picture as if it was a shape. This concept allows me to play with things like irregularly shaped (non-rectangular) images as well.

 

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