> For the complete documentation index, see [llms.txt](https://blair-neal.gitbook.io/survey-of-alternative-displays/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://blair-neal.gitbook.io/survey-of-alternative-displays/techniques/overview.md).

# Overview

In this section, we'll cover various light manipulation techniques. In my definition, techniques are a slightly different area than a specific "technology", but it is ultimately a semantic difference. There are some projects mentioned in the previous section that could be considered a technique as well.

Typically in the techniques I mention below, you are using something like a standard display but in a non-standard way. You may be using a display and augmenting it with a plastic or cloth material, you may be using a fog machine to create a projection surface instead of a flat wall.