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threejs-interaction

Implement raycasting-based selection and camera controls in Three.js scenes.

46.2k|5.7k|Updated Mar 29, 2026
Search Tags:#interaction#webgl#controls#threejs#touch#mouse#raycasting
One-click install
npx skills add https://github.com/calesthio/OpenMontage --skill threejs-interaction-calesthio
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: threejs-interaction
Source: https://github.com/calesthio/OpenMontage/tree/main/.agents/skills/threejs-interaction
Command: npx skills add https://github.com/calesthio/OpenMontage --skill threejs-interaction-calesthio

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Three.js interactions often require implementing reliable input handling: raycasting for selection, and camera controls for intuitive navigation. This skill provides ready-to-use patterns to simplify adding interactivity to 3D scenes.

Core Features & Use Cases

  • Raycasting for click detection and object selection in 3D space.
  • Camera controls integrations (OrbitControls, etc.) and support for touch/mouse input.
  • Use Case: prototype interactive 3D scenes such as product demos or education visuals quickly.

Quick Start

Integrate raycasting and orbit controls in your Three.js scene to enable object picking and smooth camera movement with mouse or touch input.

Frequently Asked Questions about threejs-interaction

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

FAQPage Schema
How do I add mouse click object selection to a Three.js scene?▼

Mouse click object selection in a Three.js scene is achieved through raycasting, which calculates intersections between the cursor's projected line and 3D meshes to identify clicked items. This skill implements those interactive raycasting patterns.

What is the best way to set up Three.js camera controls for touch and mouse input?▼

Three.js camera controls for touch and mouse input are best configured using addon integrations like OrbitControls, enabling smooth navigation and scene manipulation. This skill provides ready-to-use patterns to simplify adding this interactivity.

Can I use Three.js raycasting for product visualization interactions?▼

Three.js raycasting is fully applicable for product visualization interactions, enabling click detection and object selection in 3D space. It allows users to prototype interactive 3D scenes such as product demos or education visuals quickly.

Does Three.js OrbitControls support both touch and mouse input?▼

Three.js OrbitControls supports both touch and mouse input for intuitive camera navigation across web-based 3D applications. This skill integrates these controls to enable smooth camera movement and interactive object picking.

Why does Three.js object picking fail without raycasting?▼

Three.js object picking fails without raycasting because there is no mathematical mechanism to map 2D screen coordinates to 3D world space. Raycasting calculates the intersection vectors required to identify selected meshes.

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