(hasParent) ? (parent.opacity/100) * value : value;
β
The parent's opacity value acts as a mulitplier for the child's
Apply this expression to the property you want to control (like opacity) and make sure it is referencing the correct control layer.
Use a slider control to delay keyframe animation by a defined amount of seconds. Works like a marker trigger, but simpler. Useful for MOGRTs
Constrain the max width of a text layer using the scale property
AfterEffects_Tricks
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