The inner distance of the vignette effect measured from the center of the screen, 0-3 range. This is where the vignette effect starts. Value larger than 1 represents the value off screen, which allows more control. Defaults to 0.5, representing half the distance from center.
The intensity of the vignette effect, 0-1 range. Defaults to 0, making it disabled.
The outer distance of the vignette effect measured from the center of the screen, 0-3 range. This is where the vignette reaches full intensity. Value larger than 1 represents the value off screen, which allows more control. Defaults to 1, representing the full screen.
The curvature of the vignette effect, 0.01-10 range. The vignette is rendered using a rectangle with rounded corners, and this parameter controls the curvature of the corners. Value of 1 represents a circle. Smaller values make the corners more square, while larger values make them more rounded. Defaults to 0.5.