There are four blur options in the Gravit Designer:
- Blur to apply a Gaussian Blur.
- Lens Blur
- Tilt shift
- Zoom Blur
The blur effect applies a Gaussian blur to the object.
The Gaussian blur is a blurring technique uses a Gaussian function which describes a normal presentation in statistics.
The Gaussian blur is by far the most popular blur effect used by thousands of photographers and designers on daily basis to smooth the edges of the mask, reduce noise and details.
Use the radius slider(1) to control the intensity of the effect.
Use the clip radio slider(2) to prevent the blur to overflow out of the image.
Lens Blur Effect
The lens blur effect adds the depth to the object by blurring objects on the background with no effect on the objects on the foreground.
So, if you forgot the telephoto lens fear nothing because you can simulate the lens blur in Gravit Designer with several controls to fine-tune the effect:
- The radius slider controls the intensity of the effect
- The brightness slider can brighten up or dim the image
- The angle slider controls the distribution of the effect. Every lens focuses on the object by a specific angle, so to imitate a real camera lens effect you can control the angle.
Tilt Shift Effect
The tilt shift applies a partial or areal smoothing to the image. It allows you to selectively blur some regions of the image maintaining the focal points.
Oppose to the lens blur, the tilt shift is linear effect so you can literally move the blur back and forth. This flexibility is secured by the comprehensive system of the six sliders:
- The Start X slider sets a starting point of the blur on the X-axis.
- The Start Y slider sets a starting point of the effect on the Y axis
- The End X slider sets an ending point on the X-axis
- The End Y slider sets an ending point on the Y-axis
- The Blur radius controls the intensity of the blur
- The Gradient Rad. helps you to define the size of the focal point.
Zoom Blur Effect
The zoom blur effect simulates the lens zoom burst when the blurry lines are bursting out of the photo.
By default, the blurry lines emanate from the center to the sides. You can change horizontal distribution by dragging Center X slider(1), vertical – by dragging Center Y slider(2).
The strength slider(3) controls the intensity of the effect.