[Tex/LaTex] How to disable beamer’s dimming of covered text

beamerlistspause

In Beamer, when you use \pause \uncover, or <+-> with itemize, the text that is covered is dimmed. But that could be distracting since people can still read ahead. Is there a way to disable this dimming?

On a similar note, it seems the amount of dimming depends on the level of nesting in a list, which can sometimes be even more frustrating since the next bullet separated by several sub-bullets becomes so much more prominent in the middle of the page. Can this be changed too?

I tried \only, but then the text jingles around since the layout thinks the text isn't there. I also tried different themes, but it doesn't seem to change the amount of dimming (of course, I could just be selecting bad themes).

Best Answer

This is covered in Section 17.6 on page 191 of the beamer manual.

\setbeamercovered{invisible}

hides the content completely. Note that, the content which is already presented and become transparent and the content that is still about to be presented can be distinguished with the options of this command.

Related Solutions

[Tex/LaTex] Problem with beamer’s \pause in alignments

From the beamer manual, in the middle of a use case:

Euclid finds that he can also add a \pause between the definition and the example. So, \pauses seem to transcede environments, which Euclid finds quite useful. After some experimentation he finds that \pause only does not work in align environments. He immediately writes an email about this to beamer’s author, but receives a polite answer stating that the implementation of align does wicked things and there is no fix for this. Also, Euclid is pointed to the last part of the user’s guide, where a workaround is described. (emphasis added)

Here is my workaround, using \action:

\documentclass{beamer}
\mode<presentation> { \setbeamercovered{transparent} }

\begin{document}
\begin{frame}
\[
  \begin{cases}
  \begin{aligned}
  \action<+->{v(t,x) &= g(t,x), \\}
  \action<+->{u(x)} &\action<.->{=f(x)} & \action<.->{(x\in\mathbb R)}
  \end{aligned}
  \end{cases}
\]
\end{frame}
\end{document}

It's surprising that the second line has to have each cell of the align enclosed in an action specification while the first line can go in a single one (maybe that has something to do with the fact that it's shown by default on all slides). But I remember Till's advice to Euclid:

align does wicked things and there is no fix for this.

Added: \action is a generic \only if I recall correctly. And the incremental overlay specifications like <+-> are very much worth learning. See Section 8 of the beamer manual, or at least it's Section 8 of my 3.06 manual: "Creating Overlays."

[Tex/LaTex] Beamer: How to Disable `\pause` Temporarily

This is done automatically using the handout class option. Simply use

\documentclass[handout,....]{beamer}

Then recompile. This gives you the final state of each frame.

Best Answer

Related Solutions

[Tex/LaTex] Problem with beamer’s \pause in alignments

[Tex/LaTex] Beamer: How to Disable `\pause` Temporarily

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