ACES (Academy Color Encoding System / ACES) is a technical term that is extremely important in the rendering and optimization of game graphics (technical art). An algorithm that uses the tone mapping method based on international standards in the film industry to achieve a beautiful cinematic blend of saturation (film look) near the boundaries of overexposure when compressing the extremely wide luminance information of HDR for display use.
Real-world analogy: A filter that projects raw digital footage (HDR) through "genuine Kodak movie negative film (ACES) used in movie theaters, transforming it into a masterpiece with bitterness and contrast
ACES is a ``color translator designed by the organization hosting the Motion Picture Academy Awards that converts the colors of all digital light in an ultra-beautiful manner to match the physical response characteristics of ``genuine top-quality motion picture film.'' Raw digital data tends to be cold and glare, but by passing through the magic curve of ACES, no matter how strong the light (HDR) enters, the edges will naturally and gently fade (desaturation) and converge to a beautiful, moist white, and the entire screen will suddenly change to the quality of ``a sophisticated Hollywood cinema''.
Illustration: ACES (Academy Color Encoding System / An infographic that clearly illustrates the basic processing flow and mechanism of Aces) in Japanese.
Detailed mechanism and operating principle
Open the Color Adjustments and Tonemapping volumes in Post Processing and set the Mode to ACES to instantly apply cinematic color characteristic curves.