---
id: wiki-2026-0508-raycaster
title: Raycaster
category: 10_Wiki/Topics
status: duplicate
canonical_id: raycasting
duplicate_of: "[[Raycasting]]"
aliases: [Three.js Raycaster, Ray Picker]
source_trust_level: A
confidence_score: 0.9
verification_status: redirected
tags: [duplicate, threejs, raycasting, picking]
last_reinforced: 2026-05-10
github_commit: pending
---

# Raycaster

> **이 문서는 [[Raycasting]] 의 중복본입니다.** Canonical 문서로 redirect.

## 매 핵심 요약 (specialization)
- 매 Three.js `THREE.Raycaster` class: setFromCamera(mouse, camera) → intersectObjects(scene.children).
- 매 use case: mouse picking, hover detection, line-of-sight check, AR object placement.
- 매 perf: BVH (three-mesh-bvh) 사용 시 100k+ triangle scene 의 sub-ms intersection.

## 🔗 Graph
- 부모: [[Raycasting]] (canonical)
- 관련: [[Three.js]]

## 🕓 변경 이력
| 날짜 | 변경 |
|---|---|
| 2026-05-08 | Phase 1 |
| 2026-05-10 | 중복 처리 — canonical 문서로 redirect |