This will cover how to create a 3D ball in Photoshop CS.

Step 1

Open a canvas. Press D. (to set default foreground and background colors) Press Alt+Backspace to fill the canvas with black color. Create a new layer by clicking on the 'Create a new layer' icon at the bottom of the layers panel.

Step 2

Choose the Elliptical marquee tool from the toolbar, with the shift key down draw a circle on the canvas.

Step 3

Click on the black foreground color on the toolbar and select a color. Now press Alt+Backspace, the circle is filled with the color.

Step 4

Create one more layer.

Step 5

Use the airbrush to give some shading. Click on the brush tool on the toolbar. Just below the main menu you can see the brush settings. Give the settings as in the image below.

Press D to change the foreground color to black. Paint with the brush gently around the ball, keep the position of the brush as seen in the image above.

Step 6

Create a new layer. Set the foreground color to white. With the brush paint the edge as seen in the image below and also give some shading on the top of the ball.

Step 7