Devlog 20 (Patreon)

There is only one type of blur effects in Daz3d, and it's called Depth of Field, which means it blurs the objects in the image based on distance. Within the range of distance you choose, objects will look clear or stay in focus, while objects outside that range will be blurred. It's very useful, and it can only be done in Daz3d because only it has the distance data of the objects. There is no distance data in an image. We can still perceive depth in an image, but that's because of our experience with how things look with distance in real life. It's why we see 3D in a 2D image. Every painting, every photo, every computer screen, is of course 2D. It's also why optical illusions work.

Now, in this particular example, you can see the mirror and the wall have basically the same depth to them. Maybe the mirror is slightly protruded from the wall, but the difference is too minor for Depth of Field to work. But if I still want the focus to be just on the mirror, then I can use something called Focus Blur in GIMP. It allows me to select an area to focus on and blur the rest.