1. First, we choose the ellipse selection tool. Hold down the shift key and draw a perfect circle. Create a new transparent layer after drawing.

2. Select the gradient tool. Choose the fourth one. Click the center of the circle. Pull up the gradient color of the circle. Then press CTRL to deselect. Press CTRL+j to copy a layer. Lock the copied layer.

3. Then fill it with black. Transform the surrounding area. Change the opacity to 30. Place this layer under the first layer. Then move the position. In this way, the ball is ready.

A space geometry, in which a semicircle rotates a Zhou Suocheng around a straight line equivalent to its diameter, is called a sphere, and the radius of the semicircle is the radius of the sphere. A sphere is a three-dimensional figure with only one continuous surface, which is called a sphere. The orthographic projection of a sphere on any plane is a circle with the same size, and the diameter of the projected circle is equal to the diameter of the sphere.

Definition: The spatial geometry of a semicircle rotating around a straight line with a diameter of one Zhou Suocheng is called a sphere, and the figure shown in Figure 1 is a sphere. Sphere is a three-dimensional figure with a continuous surface, and the geometry surrounded by sphere is called sphere. There is no absolute sphere in the world. Absolute spheres exist only in theory. But in a weightless environment (such as space), the droplets will automatically form an absolute sphere.