threejs-interaction

Handle raycasting, OrbitControls, and input for Three.js scenes.

Updated Mar 16, 2026

Search Tags:#interaction #threejs #orbitcontrols #raycasting #object-selection #web-3d

Ready to run

npx skills add https://github.com/soeiroo/multifunctional-web --skill threejs-interaction-soeiroo

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: threejs-interaction
Source: https://github.com/soeiroo/multifunctional-web/tree/main/.agents/skills/threejs-interaction
Command: npx skills add https://github.com/soeiroo/multifunctional-web --skill threejs-interaction-soeiroo

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Raycasting-based input handling and camera controls to enable interactive object selection in Three.js scenes, empowering richer 3D experiences across devices.

Core Features & Use Cases

Raycasting for precise object picking and interaction feedback.
OrbitControls (and related input methods) for smooth navigation around a scene.
Use Case: build interactive 3D editors, product visualizers, or games where selecting and manipulating objects matters.

Quick Start

Set up a Three.js scene with raycasting and OrbitControls to enable object selection via mouse or touch.

Frequently Asked Questions about threejs-interaction

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I set up Three.js object selection using raycasting?▼

Three.js object selection using raycasting requires setting up input event listeners and casting rays from the camera through the pointer to intersect scene meshes. The Skill provides robust raycasting setup and example patterns to enable precise object picking and interaction feedback.

Does OrbitControls work with raycasting for object selection in Three.js?▼

OrbitControls works seamlessly with raycasting for object selection in Three.js by separating camera navigation from object interaction. The Skill integrates OrbitControls to provide smooth scene navigation while maintaining accurate click detection for selecting objects across desktop and touch devices.

What is the best way to handle user input across desktop and touch devices in a 3D web scene?▼

Handling user input across desktop and touch devices in a 3D web scene requires normalizing pointer events for both mouse and touch interactions. This Skill provides various input methods and robust handling to ensure intuitive navigation and consistent object selection across different device types.

Can I build an interactive 3D product visualizer with Three.js that responds to clicks?▼

You can build an interactive 3D product visualizer with Three.js that responds to clicks by implementing raycasting for click detection and OrbitControls for scene navigation. The Skill provides example patterns for selection and interaction tailored for visualizers and 3D editors.

Why does my Three.js raycasting object selection fail on touch devices?▼

Three.js raycasting object selection often fails on touch devices when input events are not properly normalized for touch coordinates. The Skill addresses this by providing robust user input handling across desktop and touch devices, ensuring raycasting accurately detects object intersections.

When do I need raycasting in a Three.js web 3D application?▼

You need raycasting in a Three.js web 3D application when building interactive scenes requiring object selection, click detection, or manipulation feedback. The Skill satisfies the functional requirements of raycasting setup to empower richer 3D experiences across devices.