# Threejs Interaction

> Three.js interaction - raycasting, controls, mouse/touch input, object selection. Use when handling user input, implementing click detection, adding camera controls, or creating interactive 3D experiences.

- Skill: `newmindsgroup/threejs-interaction` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add newmindsgroup/threejs-interaction`
- Raw SKILL.md: https://api.skillmd.com/api/skills/newmindsgroup/threejs-interaction/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- License: MIT
- Author: newmindsgroup (https://skillmd.com/u/newmindsgroup)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/newmindsgroup/threejs-interaction

---


# Three.js Interaction

Three.js interaction - raycasting, controls, mouse/touch input, object selection. Use when handling user input, implementing click detection, adding camera controls, or creating interactive 3D experiences.

## When to Use
- You need user interaction inside a Three.js scene.
- The task involves raycasting, object picking, pointer handling, touch input, or camera controls.
- You are building an interactive 3D experience rather than a passive render.

## Core Workflow
1. Confirm the request matches this skill's trigger, scope, and risk profile.
2. Use the topic map to identify the relevant pattern, checklist, or example before writing detailed guidance or code.
3. Load `references/full-guidance.md` when implementation details, examples, anti-patterns, validation checks, or edge cases are needed.
4. Apply only the relevant guidance instead of loading or repeating the entire reference by default.
5. Verify the result against any validation checks, limitations, security notes, or platform constraints in the reference.

## Topic Map
- Quick Start
- Raycaster
- Basic Raycasting
- Mouse Position Conversion
- Touch Support
- Raycaster Options
- Efficient Raycasting
- Camera Controls
- OrbitControls
- FlyControls
- FirstPersonControls
- PointerLockControls
- TrackballControls
- MapControls
- TransformControls
- DragControls
- Selection System
- Click to Select

## Reference Map
- `references/full-guidance.md` preserves the complete original guidance, including examples and detailed edge cases.

## Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

## Progressive Loading
Keep this `SKILL.md` as the compact routing and workflow entrypoint. Load the reference file only when the user task requires the deeper implementation material.