The pack is primarily used to create spatial volume. Filmmakers use these overlays to introduce subtle haze, wispy smoke, or thick fog, which helps separate foreground subjects from backgrounds and adds a sense of "scale" to a shot.
The modern iteration, Fog II 4K , is organized into four distinct categories to help editors find the right mood quickly: Slower , Faster , Textured , and Lower (designed to hug the bottom of the frame). Lens Distortions – Fog 4K
Because they are high-resolution 4K assets, they can be scaled, rotated, or repositioned without losing quality. Editors often tint the clips to match the existing lighting or layer multiple files to create a grittier, more complex environment. Why Filmmakers Use It The pack is primarily used to create spatial volume