cosmosmythos

GP Tween (c) is a Grease Pencil interpolation add-on for Blender that uses Geometry Nodes to generate in-between frames between keyframes. It works on a per-layer basis and interpolates strokes to or from any spline type.

Grease Pencil Auto Interpolate is a Blender add-on that automatically generates smooth in-between frames for Grease Pencil animation. Built on Grease Pencil Geometry Nodes, it works non-destructively with real-time playback processing.