A guide layer appears in the current composition but not in any subsequent compositions or the final render (unless you specifically override this functionality in Render Settings, which kind of defeats the purpose). Like adjustment layers, guide layers are normal layers with special status. Apply a matte to an adjustment layer to apply an effect to one area of the image.Īdd a blending mode and the adjustment layer is first applied and then blended back into the result ( Figure 4.11).Īlpha channel effects change the alphas of the layers below, not of the adjustment layer itself.
Many effects do not themselves include so direct a control, even when it makes perfect sense to “dial it back 50%,” which you can do by setting Opacity to 50%. Use Opacity to attenuate the amount effects are applied.Time any effect in an adjustment layer by setting layer In/Out points.Change its timing and the effects appear only on frames within the adjustment layer’s In/Out points.Move the adjustment layer down the stack and layers above it are unaffected.That by itself is pretty cool, but there’s more: An adjustment layer created by After Effects is a white, comp-sized solid with this switch toggled on.Īdjustment layers allow you to apply effects to an entire composition without precomping it. Figure 4.10 Any pixel layer becomes an adjustment layer by toggling this switch.
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