examples/

Wolfenstein-style dungeon crawler testbed for the Willow engine.

Village — a low-poly software 3D village rendered in the PS1/N64 aesthetic.

Atlas demonstrates the TexturePacker atlas system and dynamic page registration.

Basic demonstrates a minimal willow scene with a colored sprite bouncing around the window.

Rope Garden - a cable-untangling puzzle.

Filter Gallery showcases every built-in Willow filter applied to a whelp sprite.

Filter Showcase demonstrates Willow's filter and shader system with a single sprite cycling through dramatic visual effects.

Fireflies demonstrates a nighttime meadow scene with glowing fireflies drifting on tweened paths, each casting a warm light.

Geometry Showcase demonstrates the breadth of Willow's polygon and custom geometry primitives: regular polygons, stars, custom polygons, circles, triangles, lines, and runtime vertex updates — all animated with tweens and per-frame rotation.

Interaction demonstrates draggable colored rectangles with click callbacks using willow.Run for a minimal game loop.

Lighting Demo showcases the LightLayer system in a dark dungeon scene.

Lighting Showcase demonstrates Willow's circle light system with multiple colored lights orbiting and overlapping to create blended illumination.

Lightning Showcase demonstrates a dramatic lightning strike effect combining the lighting system, particle sparks, and screen flash.

Mace demonstrates a medieval flail — a spiked mace head on a chain — swinging around the screen using the Rope mesh for the chain and a Star polygon for the head.

Mask Showcase demonstrates Willow's clipping and masking system with a single sprite cycling through five dramatic mask effects, one per second.

Masks demonstrates three node-masking techniques in Willow across three equal full-height panels:

Outline demonstrates outline and inline filters applied to a sprite with alpha transparency (whelp.png).

Particles demonstrates the ParticleEmitter system with three distinct effects and two blend modes.

physics spawns random shapes with gravity, collisions, and click-to-explode.

Text-pixelfont demonstrates pixel-perfect bitmap font rendering using willow.NewFontFamilyFromPixelFont.

Rope demonstrates the Rope mesh helper by connecting two draggable nodes with a textured rope that sags under gravity.

SDF Blizzard demonstrates SDF font effects with an icy theme: per-letter bouncing, intense glow/outline/shadow effects, and falling ice particles.

Shaders showcases Willow's built-in filter system by displaying all shader effects simultaneously in a 3x3 grid, each applied to a pre-rendered tilemap panel with animated parameters.

Shapes demonstrates scene graph hierarchy with polygons and containers.

sprites10k spawns 10,000 whelp sprites that rotate, scale, fade, and bounce around the screen simultaneously.

Text demonstrates font rendering with willow.NewText and willow.NewFontFamilyFromFontBundle.

Demo: loading a Tiled (.tmx) map into Willow's tilemap system via go-tiled.

Tilemap demonstrates a grid-based tilemap with camera panning.

TileMapViewport demonstrates the geometry-buffer tilemap renderer with camera panning, multiple tile layers, and a sandwich entity layer.

Tween Gallery showcases every easing function available in Willow's tween system.

Tween Recipe demonstrates a coordinated tween combo where twelve circles bloom outward from center, rotate and shift color, then converge back in a continuous loop.

Tweens demonstrates the tween animation system using tiles from the shared tileset.

Underwater demonstrates a layered underwater scene revealed through a circular porthole mask that follows the cursor.

Watermesh demonstrates per-vertex wave animation using a DistortionGrid textured with tile 13 (the water tile) from the bundled tileset.