Supported Features

What SwfMesh does and does not render from a .swf. Where the two engines differ, the difference is called out per row - everything else is shared, because both bindings sit on one core.

This page answers one question: what of my SWF survives the trip? Plugin Features answers the other one - what you can do with it once it is in your engine.

Legend: ✅ supported · 🚧 partial or in progress · ❌ not supported

Graphics#

Feature	Unity	Godot	Notes
Fills	✅	✅
Bitmaps	✅	✅
Bitmap fills	✅	✅
Gradients	✅	✅	Linear and radial
Lines	✅	✅
Variable-width lines	✅	✅
Dashed lines	✅	✅
Brush lines	✅	✅
Masks	✅	🚧	Nested masks - a mask inside a mask - are fully supported in Unity. In Godot the inner mask falls back to the outer one.

Godot's SwfNode2D additionally supports alpha masking, where the mask's alpha modulates the content (soft and gradient masks). The 3D stencil path cannot express this and uses coverage masking, which is what Flash does.

Animation#

Feature	Unity	Godot	Notes
Classic tweens	✅	✅
Motion tweens	✅	✅
Easing	✅	✅
Morph tweens	🚧	🚧	Playing, but not yet Flash-accurate

Audio#

Feature	Unity	Godot	Notes
Event sounds	✅	✅
Streaming sounds	✅	✅	Timeline-synced
Sound envelopes	✅	✅	Per-channel volume envelopes

Audio routing: more info in Plugin Features.

MovieClips & Scripts#

Feature	Unity	Godot	Notes
Library-exported MovieClips	✅	✅	Any exported symbol can be the root timeline - see MovieClip Library
Nested clip access	✅	✅	By instance name, at any depth
Frame scripts	✅	✅	See below

Supported frame-script actions are stop, play, gotoAndStop, gotoAndPlay, custom events, and completion callbacks - on the root timeline and on nested clips, read from either AS2 or AS3. Scripts are extracted at import and baked to data, so there is no runtime VM and nothing is interpreted at play time. Custom event dispatch must be authored in AS3.

Driving all of this from your own code is in Scripting API.

Color & Blending#

Feature	Unity	Godot	Notes
Tints	✅	✅
Color transforms	✅	✅	Multiply and add, composed down the display list
Multiply blend	✅	✅
Add blend	✅	✅
Subtract blend	✅	✅
Other blend modes	❌	❌

Not yet supported#

Feature	Notes
❌ Text	Static and dynamic text fields, and embedded fonts
❌ Filters	Blur, drop shadow, glow, bevel, and the rest
❌ 9-slicing	Scale-9 grid on symbols