Auto Fade In & Out
Fades a layer in at its start and out at its end automatically — the fades follow the layer when you trim or move it.
Expression Code
// Auto Fade In & Out// Apply to OpacityfadeIn = 0.5; // Fade-in length in secondsfadeOut = 0.5; // Fade-out length in secondsfadeInVal = linear(time, inPoint, inPoint + fadeIn, 0, 100);fadeOutVal = linear(time, outPoint - fadeOut, outPoint, 100, 0);Math.min(fadeInVal, fadeOutVal) * (value / 100);
Apply to Opacity. The layer fades in over fadeIn seconds from its in-point and out over fadeOut seconds before its out-point. Trim, slip, or move the layer in the timeline and the fades reposition themselves — no keyframes to fix.