threejs-interaction

Name: threejs-interaction
Availability: InStock
Author: Alex

Implement Three.js pointer input, raycasting, and camera controls for interactive 3D scenes.

Updated Mar 17, 2026

Search Tags:#interaction #three.js #camera controls #raycasting #object selection #pointer input #orbit controls

Ready to run

npx skills add https://github.com/alexzhang1030/platform-demo --skill threejs-interaction-alexzhang1030

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: threejs-interaction
Source: https://github.com/alexzhang1030/platform-demo/tree/main/.agents/skills/threejs-interaction
Command: npx skills add https://github.com/alexzhang1030/platform-demo --skill threejs-interaction-alexzhang1030

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill removes the guesswork from making Three.js scenes interactive by showing how to detect input, select objects, and control the camera smoothly.

Core Features & Use Cases

Raycasting and Picking: Detect clicks, hovers, and touches on meshes, lines, and points for object selection and UI feedback.
Camera and Movement Controls: Configure Orbit, Fly, First Person, Pointer Lock, Trackball, and Map controls for different navigation styles.
Interactive Editing and Selection: Use transform handles, drag controls, box selection, and keyboard input to build editors, viewers, and game-like experiences.
Use Case: A product configurator can let users orbit the model, tap parts on mobile, and drag selected components while keeping the interface responsive.

Quick Start

Use this skill to add mouse or touch picking and smooth camera controls to a Three.js scene.

Frequently Asked Questions about threejs-interaction

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

FAQPage Schema

How do I add object selection and click detection to a Three.js scene using raycasting?▼

Three.js raycasting detects pointer input on meshes, lines, and points to enable object selection. It handles clicks, hovers, and touches, providing the necessary intersection data for building interactive UI feedback in 3D scenes.

What's the best way to configure camera controls for different navigation styles in Three.js?▼

Configuring Three.js camera controls involves setting up Orbit, Fly, First Person, Pointer Lock, Trackball, or Map controls. These modules manage camera movement and rotation, allowing developers to implement specific navigation styles for various 3D viewer experiences.

Can I build a 3D product configurator with drag controls and mobile touch support in Three.js?▼

Yes, building a 3D product configurator is possible by combining camera controls with touch detection and drag controls. Users can orbit models, tap parts on mobile devices for selection, and drag components while maintaining responsive browser performance.

How do you handle world-screen coordinate conversion for interactive 3D editing workflows?▼

World-screen coordinate conversion translates 3D spatial positions to 2D screen coordinates. This process supports interactive editing workflows by accurately placing transform handles, enabling drag operations, and synchronizing keyboard inputs with object transformations.

Why does my Three.js scene lag when handling pointer input and hover feedback?▼

Three.js scene lag during pointer input often stems from unoptimized event management. Implementing performance-minded event handling and efficient raycasting limits unnecessary calculations, ensuring responsive hover feedback and smooth interaction rendering.

Does this Three.js interaction approach support box selection and keyboard handling for editors?▼

Yes, the interaction approach supports box selection and keyboard handling. It integrates transform handles and drag controls with keyboard input, enabling developers to build complex 3D editors and game-like experiences with multi-object selection workflows.