New Demos: CoolFutbol and CoolBowling

[untoldengine]

Hey everyone,

We've just added two new mixed-reality demos for Apple Vision Pro, both built on Untold Engine: CoolFutbol and CoolBowling.

⚽ CoolFutbol

A visionOS soccer demo — but just as importantly, it doubles as a reference walkthrough for building Untold Engine XR apps. The README walks through the full app shape end-to-end: how UntoldEngineXR boots against CompositorServices, how GameScene.init() loads a .untoldscene file and configures engine systems (lighting, animation, XR spatial input, rendering), and how the per-frame loop (handleInput() → update(deltaTime:)) translates spatial pinch/tap/gaze gestures into gameplay via entities, components, and custom systems.

If you've been wondering "how do I actually structure an XR app on Untold Engine," this is the one to read.

• Requires visionOS 26.0+ and Xcode 26+
• xcodegen generate && open CoolFutbol.xcodeproj, build, run, and press Start Experience

🎳 CoolBowling

Mixed-reality bowling, and the demo that needed a real rigid-body physics solver — it runs on the shared UntoldJoltPhysics plugin.

Look at your real floor where the foul line should be and pinch: a lane unrolls away from you on a low plinth, with bumpers, ten racked pins, a pit, and a ball return on your right. Pinch the ball off the rack, roll it with your tracked hand velocity, and the pit/return cycle handles the rest — two balls a frame, deadwood cleared between rolls, a fresh rack after a strike or second ball. Pin-down scoring comes straight from each pin's pose.

A nice touch: the alley is "game space," not "room space" — any real surface that cuts into the lane (a chair, a table) is excluded from the simulation so the ball just rolls through it, while everything else in the room stays solid and collidable via ARKit plane detection feeding into Jolt.

Everything — the pin mesh (lathed from a profile at runtime), textures, and audio (synthesized thuds, pin clacks, strike fanfare) — is generated deterministically, no hand-made assets.

• Open Examples/CoolBowlingVisionOS/CoolBowlingVisionOS.xcodeproj, run on a Vision Pro (or simulator, with a fallback floor), press Step onto the Lane
• Includes swift test coverage for alley geometry, the frame rule, keep-out filtering, and full roll-to-pit physics

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Give them a spin and let us know what you think — bugs, rough edges, or things you'd love to see next are all welcome in the comments. 🚀