This tutorial shows you how to quickly create a wireframe sphere in just a few steps, and while the result isn’t quite impressive, you can put your Photoshop skills to test and try to create a disco ball, like in “Saturday Night Fever”…
Wireframe Sphere

1. Create a new document in Photoshop, using any settings you need, but be sure to make it square. See my settings below…
Wireframe Sphere

2. Hold Shift to create a square selection, and make it about 20X20 pixels, but before that, create a new channel.
Wireframe Sphere

3. Fill the selection with White(use the Paint Bucket Tool, or press D, followed by Alt+Backspace).Wireframe Sphere

4. Go to the Select menu, and choose Modify>Contract…, using a 2 pixels setting. At last, press Del to remove the selection and move the selection up and to the left with 2 pixels.
Wireframe Sphere

5. Next, open the Edit menu and choose Define Pattern. Give this pattern a name, and press OK. Notice how should look this new pattern in the image below.
Wireframe Sphere

6. Create a new channel, and use the Paint Bucket Tool to fill it with the pattern you just saved.
Wireframe Sphere

7. Press Ctrl+I to invert the image.
Wireframe Sphere

8. Use the Elliptical Marquee Tool to select a circular area of the image, then apply Filter>Distort>Spherize, with a setting of 100.
Wireframe Sphere

9. Copy the sphere to a new layer, and this is it!

To get out the jagged edges of your image, scale it down, or use a Blur filter. Then…have fun creating your disco ball!