Ride the source curve.

The pinned roller-coaster example combines RollerCoasterGeometry, lifters, shadow geometry, seeded terrain, trees, sky, rotating funfairs, a banking train, VRButton, and the explicit WebGL2 fallback seam.

backend

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environment

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terrain

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trees

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track

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lifters

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shadow

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funfairs

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train

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pipeline

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frames

0

VR

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velocity

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sample avg / p95

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state

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progress

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Derived from the pinned webgpu_xr_rollercoaster.html source. This route preserves the official roller-coaster geometries, train banking, VRButton, setupWebGLXRFallback, and direct-pipeline compatibility seam. Desktop controls and the visible VR button are inspectable references, not immersive-session proof; official page pixels, headset/device/compiler matrices, performance generalization, and whole-example fidelity remain separate. Use ?forceWebGL=1 for the explicit WebGL2 reference.