Shadow Cascades (Shadow Cascades) is a technical term that is extremely important in rendering and optimizing game graphics (technical art). Explanation of a technology that divides and applies shadow maps of different resolutions to multiple ranges of foreground, mid-range, and distant view depending on the distance from the camera, achieving both lightness of distant shadows and high definition of shadows at your feet.
Real-world analogy: Instead of showing the entire country and your ``home garden'' on one map at the same time, an enlarged map system that superimposes a ``detailed magnifying glass enlarged view (close-up cascade)'' at your feet
Shadow Cascade is a "multi-camera shadow system that divides precision shadow cameras into four according to the distance from the camera, and each takes separate shots of its own area (near, medium, distant, and ultra-distant views)". A very high-resolution photo (Cascade 0) taken from a very close distance is used for the 5 meter radius of the player's feet (near view), and a wide-area photo (Cascade 3) that roughly captures the entire area is used for the background 100 meters away (distant view). This intelligent switching allows you to clearly and sharply depict only the highly visible shadows at your feet.
Illustration: Shadow Cascades (Infographic that clearly illustrates the basic processing flow and mechanism of Shadow Cascade) in Japanese notation
Detailed mechanism and operating principle
Enable "Shadow Cascades" in the URP asset to 2 Cascades or 4 Cascades to concentrate the dense shadow allocation area at the foot of the camera and eliminate jaggies.