Allows you to animate a mask shape using expressions. Use “value” to refer to the current vertex position. Use “thisProperty.propertyGroup(1).propertyIndex” to refer to the vertex index.
After Effects
2023, 2022, 2021, 2020, CC 2019, CC 2018, CC 2017, CC 2015.3, CC 2015, CC 2014, CC, CS6