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I don't even know if this is possible, but here goes:

I'm writing slides for an upcoming presentation using the default LyX Beamer template. I am also using the uncover everything in a stepwise fashion option:

\beamerdefaultoverlayspecification{<+->}

However, when one of the bullets that I want to uncover in this stepwise fashion contains an image, the image is not "dimmed out" when it should be (as can be seen in the attached screenshot - those graphs are supposed to be dimmed in the first slide).

enter image description here

How can I apply the stepwise uncover feature to images as well?

An MWE can be downloaded here

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  • Hmm... I did a simple test and everything worked as expected; could you please add to your question a minimal example document illustrating the problem?
    – Gonzalo Medina
    Apr 15, 2013 at 19:30
  • I'd be surprised if the dimming of "invisible" material works for images as well as text. You might have to handcode it.
    – Matthew Leingang
    Apr 15, 2013 at 19:31
  • Just added the MWE to the question (as a download)
    – inspectorG4dget
    Apr 15, 2013 at 19:41
  • @inspectorG4dget that is a file generated for LyX which contains a lot of non LaTeX code, so I cannot follow the example. Could you provide a proper .tex file?
    – Gonzalo Medina
    Apr 15, 2013 at 19:48

1 Answer 1

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13

It seems that beamer does not know how to dim pictures. I solved this problem by adding following TeX code around the picture:

\only<2>{ ...the picture... }

That will show "...the picture..." only in step 2. Hence, you might need to adjust the number 2 to your needs. It is also possible to use ranges \only<3-5> etc.

EDIT: Note that by using \only the space will change if no \only<1> is provided. Using \visible might be better.

See also related question for LaTeX: How to pause figures in beamer.

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