When you are using GeoFill, the source pixels are displayed in the polygon you have drawn only. That is, the pixels displayed are those that have been copied and you will later paste. However, at times it is helpful to instead show original unedited image. By doing so, you can compare the original with the copied pixels.
Figure 1. Source Visibility
To view the source visibility
- On the GeoFill toolbar, click and hold Source Visibility.
The original pixels are displayed for the duration of time you hold down the mouse button. To go back to viewing the copied pixels, release the mouse button.