January 4, 2008
Lightning strikes twice (or three times, or...) Horizontally for those science lab experiments. Adjust to taste, color, glow, size, etc. Linearity controls how straight the bolt is. At 100, it is a straight line like a laser, at 0 pretty much all over the place. Note: Outer glow scale is twice inner glow scale, so the same number on both still keeps outer glow twice the size. Tip: Background darkening allows lightning to show up better. Besides, lightning from the clear blue sky is, I've been told, not that usual. Tip: Render on black background and compose in screen blend mode in Photoshop or the like for precise placement. Tip: If the lightning "falls apart," increase linearity or pattern scale.