Adobe recently added a new slider to its Photoshop Camera RAW (as well as to Lightroom) called texture. On this video Photoshop expert Jesús Ramirez (from the Photoshop training channel) demonstrates what this slider does as well as how a few other important and similar sliders work.
Ramirez explains in this video the performance of several sliders including sharpening, dehaze, clarity and the new texture slider.
The clarity adds contrast only in the midtones while the new texture adds contrast to mid-frequency areas of your image. Frequencies in an image refer to areas where there are frequent changes in contrast (high frequencies) or less frequent changes in contrast (low frequency). In this case, as mentioned the texture slider effects specifically areas with mid frequencies (so somewhere in between).
When compared texture to the other two sliders (dehaze, clarity) is more refined – a good way to think of these sliders is that the texture is the more subtle while clarity is a little stronger and dehaze is the most powerful effect.
You can, of course, use different masking tools to locally use this effect. Although it is not a very powerful effect it does introduce some noise so be careful and work conservatively.
As always – just try it yourselves and see how it works for your photos.
Bonus video: How to Sharpen image in Photoshop with Jesús Ramirez