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3D & backgrounds / Three.js

Portal rings

Concentric rings rotate at different speeds around a dark central opening.

Portal ringsPrompt recipe · preview pending

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Make it fit your project.

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Build a Three.js scene with six torus meshes sharing one center. Give successive rings smaller radii and slightly different rotation speeds; animate a subtle emissive accent without postprocessing. Keep a fixed camera looking through the opening.

Build and check.

  1. Confirm the supplied content, target environment, and required assets before implementing.
  2. Build a Three.js scene with six torus meshes sharing one center. Give successive rings smaller radii and slightly different rotation speeds; animate a subtle emissive accent without postprocessing. Keep a fixed camera looking through the opening.
  3. Expose seek(t) so frames can be inspected deterministically; add play, pause, replay, and a reduced-motion still.
  4. Inspect the opening, midpoint, and final state at desktop and mobile sizes; report any dependency or output limitation.

Know the limits.

  • Avoid flashing emission and excessive bloom. Dispose all meshes and stop the frame loop when hidden.
  • The prompt guides a coding agent; output quality depends on its implementation and review.

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Catalog 2026-10-22.a82e12098f76 · Source revision sha256:dfbe6519cbc4fc84acc4cbf926d8a01c7f2e248dd46cedd67a9112b0e928c2ba