Class Raycaster

Example

const viewer = document.querySelector("vertex-viewer");

viewer.addEventListener("tap", async (event) => {
  const scene = await viewer.scene();
  const raycaster = scene.raycaster();

  // Query the scene for the item at the position of the `tap` event
  const [hit] = await raycaster.hitItems(event.detail.position);

  if (hit != null) {
    // If there was an item present at the position, select it
    await scene.elements((op) =>
      op.items.where((q) => q.withItemId(hit.itemId.hex)).select()
    );
  }
});
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