Author: Keerthana Sachithanandham

In Three.js, matrices are used to encode 3D transformations—including translations (position), rotations, and scaling. Every Object3D instance has a matrix property that stores its transformation state. Understanding how to work with these matrices is essential for precise control of objects in a 3D scene. Updating Transformations There are two main ways to update an object’s… Continue reading Matrix Transformations in Three.js

1. Introduction Briefly explain what Three.js is and why debugging can be tricky in 3D applications. State the goal: help developers quickly identify and fix common problems. 2. Common Issues and Fixes a. Scene Not Rendering Check if the renderer is attached to the DOM. Ensure the camera is positioned correctly and pointing at the… Continue reading Debugging and Troubleshooting Common Three.js Issues

When working with shaders in TSL (Three.js Shader Language), controlling how colors blend, how reflections behave, and how UV coordinates are manipulated can dramatically enhance your visual output. This article provides an overview of essential functions for blending, reflection, and UV mapping in TSL. Blend Modes Blend modes are used to mix two colors in… Continue reading Blend Modes, Reflections, and UV Utilities in TSL

Three.js is a powerful JavaScript library that allows developers to create 3D content in the browser. With the advent of WebXR, integrating Augmented Reality (AR) into web applications using Three.js has become not only possible but relatively straightforward. This article explores how to set up and integrate AR in Three.js using WebXR. 🚀 Why Use… Continue reading AR Integration in Three.js: Building Web-Based Augmented Reality Experiences

Augmented Reality (AR) has traditionally required specialized native frameworks, but modern web tools are changing the game. With AR.js and Three.js, developers can now create marker-based AR experiences that run entirely in a browser — no app downloads required. This article guides you through setting up a lightweight, mobile-friendly AR project using AR.js with raw… Continue reading Building Marker-Based Augmented Reality with AR.js and Three.js

Using CanvasTexture in Three.js: Dynamic 2D Drawing in a 3D Scene In Three.js, textures typically come from image files, but sometimes you need dynamic, real-time content—like text, graphs, UI panels, or generated visuals. This is where CanvasTexture shines. In this article, we’ll explore: What CanvasTexture is How to create and update it Practical use cases… Continue reading Using CanvasTexture in Three.js: Dynamic 2D Drawing in a 3D Scene

Step-by-Step Implementation 1. Set Up the Scene const scene = new THREE.Scene(); const camera = new THREE.PerspectiveCamera(70, window.innerWidth / window.innerHeight, 0.1, 1000); const renderer = new THREE.WebGLRenderer({ antialias: true }); renderer.setSize(window.innerWidth, window.innerHeight); document.body.appendChild(renderer.domElement); camera.position.z = 5; 2. Define the Dropdown Texture let dropdownOpen = false; let selectedOption = ‘Option 1’; const options = [‘Option 1’,… Continue reading Building an Interactive Dropdown Menu in Three.js Using Plane Geometry and Canvas Texture

Create a text-based article panel using Three.js plane geometries. Use THREE.Raycaster to make it interactive. Style the content visually with colors and layout—all from within Three.js. 🧱 The Concept We will: Use PlaneGeometry to create a panel. Render multi-line text using CanvasTexture. Apply this as a material to the plane. Detect interaction using Raycaster. ✏️… Continue reading Creating an In-Scene Panel in Three.js Using Plane Geometry and Raycasting

Creating a rounded rectangle in Three.js involves defining a custom shape using the THREE.Shape class and then generating a mesh from it. This approach allows for precise control over the geometry, enabling features like rounded corners similar to CSS’s border-radius. (Plane mesh with rounded corners that can have an image texture) Step-by-Step Guide to Creating… Continue reading Step-by-Step Guide to Creating a Rounded Rectangle in Three.js

Creating a Procedural Grid Using UVs in a Shader (GLSL) Procedural textures are a powerful way to create patterns without relying on image textures. In this article, we’ll explore how to generate a grid pattern using UV coordinates in a GLSL shader. Understanding UV Mapping for a Grid In a typical shader, UV coordinates range… Continue reading Creating a Procedural Grid Using UVs in a Shader (GLSL)