It is quicker to make lightning with a filter, but the effect is not very real. Here the introduction of using the path to make, before making can find some lightning pictures for reference, and then the main lightning and branches separately to the stroke, the latter can be added according to the needs of the external glow and other enhanced effects can be.
< small map view big picture >
1, open the material.
2, copy one layer: The Pattern to overlay (in order to darken the background, highlighting the light of lightning).
3, with a pen to draw the following path (painting not come out with me this painting), patience.
PS Use Lightning Brush to create a special effect of the Lightning revolver