Step 1
http://www.gfxvoid.com/tutorials/1/a...xplosion/2.gif
Create a new image, and fill the background with black. Go into the Lens Flare Filter, and create several flares with the above settings.
[b]Step 2[b]
http://www.gfxvoid.com/tutorials/1/a...xplosion/4.gif
Go into the glowing edges filter, and use the above settings.
Step 3
http://www.gfxvoid.com/tutorials/1/a...xplosion/5.gif
Duplicate the layer (CTRL+J). Transform (CTRL+T). Holding shift down, turn your new layer counter-clockwise like above. Set mode to color dodge
Step 4
http://www.gfxvoid.com/tutorials/1/a...xplosion/6.gif
Duplicate your origional layer again (CTRL+J). Transform (CTRL+T). Holding shift down, turn your layer clockwise like above.
Final Product
http://www.gfxvoid.com/tutorials/1/a...xplosion/8.gif
http://www.gfxvoid.com/tutorials/1/a...xplosion/9.gif Colorized