SEGA SATURN DEVELOPER'S MANUAL

6. Video effects
6.1 Border Color: Border color is output in the area outside the display window. After instructing the start of playback, the border color is output until the actual video is output.
6.2 YC magnification: You can set the image brightness and color difference magnification. Used for fade-in and fade-out. When the color difference magnification is set to 0, the image will be monochrome.
6.3 Mosaic: Mosaic can be applied to the video. Specify the mosaic independently in the X and Y directions.
6.4 Blur: Video can be blurred.
6.5 Luminescence key effect: Adds a transparent bit to pixels below a certain luminance. You can use it when you want to superimpose images of human movements on the scroll surface.

6. Video effects