Lottie Export

Exports Grease Pencil content as vector shape layers into one of three containers:

• .json (plain Lottie JSON):
• .lottie (dotLottie ZIP package):
• .tgs (Telegram sticker/emoji):

File size is mostly driven by animation complexity (number of layers, strokes, and keyframes), not only by container type. The exporter therefore includes size-focused options such as skipping unchanged stroke keys and writing an export log to identify heavy layers/frames.

Demo Files:

• https://gitlab.com/multlabs/svg-grease-pencil-lottie-workflow/-/tree/main/demo-files

What is supported

• Collection Exporter
• Multiple GP objects in one composition.
• Optional "selected only" export.
• Camera-based projection:
  • 3D GP points projected to 2D composition pixels.
• Path export:
  • polyline and bezier path data per stroke.
• Fill/stroke style export:
  • color + opacity
  • stroke width from GP radius with thickness-space handling
• Transform animation export:
  • object transform animation
  • layer transform animation (from layer tool or keyed layer channels)
• Frame range and precision controls.
• Optional bake mode for transform animation (sample every frame).
• Optional per-stroke key reduction:
  • skip unchanged shape/style samples to reduce file size
• Optional export log file (.export.log.txt) with per-layer and per-frame stats.
• Mask export via Lottie track matte fields (tt/td/tp) when GP layer masks are used.

Graphics limitations / not supported

• Gradient fills and strokes (not yet)
• No variable line thickness
• No images or image fills
• Does not support modifier-evaluated Grease Pencil output:
  • GP Line Art modifier is not supported. But you can bake it and export.
  • other Grease Pencil modifiers are not supported
  • GP effect stack is not supported
• Does not evaluate the full Blender dependency graph result for editing:
  • the tool works on editable layer data, not final modifier stack output
• Only linear and ease keyframe type are supported and simplified. For more advanced easing, use bake mode.
• Perspective is approximated in Lottie layer transform:
  • Lottie is 2D; true 3D camera/parallax behavior is not fully representable.
• No full Blender shading/render pipeline export:
  • only vector path + basic fill/stroke style semantics.
• Lottie runtime differences may exist between players (After Effects, lottie-web, mobile runtimes).