Pseudo Effect Maker is an After Effects tool for creating custom effect controls, also known as pseudo effects. After Effects ships with several expression controls, but each one is separate; a pseudo effect lets you build a single custom group of controls with your own names, default values, and grouping, so they behave more like built-in effects and stay manageable. You add controls with a click, use drag-and-drop to organize them, and apply your changes without restarting After Effects.
Version 3 introduces a redesigned interface, improved drag-and-drop performance, and a more customizable UI for quick access to frequently used features. You can replace a selected control with the working control to make updates without losing expressions or keyframes, and improved warnings and errors help flag issues or conflicts before you start working. Custom-mapping is available for complex cases and fine-grained control.
Pseudo effects are complex controllers rather than replacements for real effects, so without the actual effects present a control does nothing. A trial version limits you to three controls and adds a watermark; this catalog lists Pseudo Effect Maker as free.