A tilt-shift post-processing effect is a visual technique used in computer graphics and image processing to simulate the appearance of a miniature scene or model-like photography. This effect creates a shallow depth of field and blurs certain areas of the image while keeping other areas in sharp focus, giving the impression that the scene is a miniature or toy-like representation.
How the original image and the effect are blended together, in most cases it does not make sense to deviate from the default value.
The softness of the focus area edges.
The relative size of the focus area.
The relative offset of the focus area.
The rotation of the focus area in radians.
The size of the blur kernel.