Quick Tip: Outer Glow Effect
March 30th, 2008
Why does my Outer Glow get washed out, or even disappear?
Since the default Blending Mode for the Outer Glow effect is Screen, whatever is underneath the glowing object affects the appearance of the Glow. In mathematical terms, Screen mode inverts the foreground and multiplies it by the background, then adds the foreground on top. Uh, yeah.
Below are two examples of the effect, on various CMYK and RGB swatches. You can see that RGB works a little better with this effect. If you’re working in CMYK, a rich black (I use C=58, M=50, Y=53, K=100) works better because there is more color information for the Screen mode to “pick up.”


