YY_ShockRing, by Andrew Yang, is an After Effects plugin built for making rings. It covers blend modes, thickness, feathering and opacity, and suits shockwaves, motion graphics, or anywhere else rings are needed.
The plugin exposes controls for the ring's center point, radius, expansion (thickness), feather (softness of the outer edge) and opacity. Two color settings define the tone near the outside and near the inside, and a smooth option interpolates colors instead of using a linear blend. A scatter parameter adds noise to the ring on CS5 and later. Blend modes include None for transparent output, Normal over the background, Add for additive blending, and two stencil modes — Multiply and Multiply+Alpha.
Version 2.1 added Multi-Frame Rendering, native Apple Silicon support and improved speed. Compatibility spans After Effects 2024 back through CS4, and a demo video is available.