Mold: vector graphics library

Mold is a real-time vector graphics library for Godot and Unity focusing on customizability and performance. Non-commercial versions are freely available with no functional difference, I highly recommend to just try it out :)

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Official Threads: Godot | Unity

When I started making games years ago I really just wanted to make games with simple 2D/3D geometry without opening image editing or modeling software. Mold is the solution I've made to make my game, and maybe you'd like it as well :)

All above gameplay scenes are included as example scenes

You can play the sample scenes here on browser. Also this miniature version of Outer Wilds' universe was created using only Mold in Godot with about 3000 lines of GDscript only and zero asset, though it's running on an older version with immediate mode so please treat it as pure visual showcase.

Features

• Abundance of 2D/3D geometry primitives. If it's not in here, just tell me the name I'll add it in!
• Capability of creating rounded 3D geometry.
• A monolithic MoldNode3D/MoldComponent that can draw any shape you wanted, and will be batched into the efficient renderer in runtime.
• Polygon with arbitrary vertices color interpolation, using MoldPolygon, with GPU backend available for cheap animating.
• MoldPolyline and MoldCurve, with GPU backend available for cheap animating and dashed visual support.
• A nice code centric API to create geometry so you don't need to leave your IDE or engine to make asset, and no Node/GameObject overhead is needed so it can run blazingly fast.
• Using low level RenderMeshPrimitives API on Unity and MultiMesh on Godot for efficient rendering.
• Abundance of color blending mode for all 2D/3D geometry primitives, and supports Oklab colorspace blending.
• Automatic dithering cross fade for 3D primitives.
• Designed around retained mode, but immediate mode API is also available with editor preview support.
• Native UI support with native UI control in Godot and uGUI in Unity (there's currently no plan to support UI toolkit because of its complications I can't quite work out)
• Built-in procedural paint/pencil stroke visuals.

Feel free to ping me on social, or tag your post on Bluesky or X (Twitter) with #MadeWithMold I would love to see what you made with it!

Limitations

• Oklab colorspace blending looks beautiful, but it inherently has performance costs and it adds up best use the linear RGB blending if you can get way with it.

• 2D primitives have vector like quality: using shader to draw locally anti-aliased that looks crisp and clean under any resolution, but this is not a SVG rendering tool.