Introduction to Volumetric Rendering Volumetric rendering visualizes 3D scalar fields where each voxel contributes to the final image based on its density and optical properties. Unlike surface rendering, volumetric techniques capture internal structures, making them perfect for: Atmospheric effects: Clouds, fog, and smoke simulation Scientific visualization: Medical CT/MRI data, seismic volumes VFX: Explosions, fire, and… Continue reading Volumetric Rendering in Three.js
Category: Immersive Web( AR/ VR/ XR)
This is the category for Immersive Web( AR/ VR/ XR)
VectorKeyframeTrack
A Track of vector keyframe values. Constructor VectorKeyframeTrack( name : String, times : Array, values : Array, interpolation : Constant ) name – (required) identifier for the KeyframeTrack. times – (required) array of keyframe times. values – values for the keyframes at the times specified, a flat array of vector components. interpolation – the type of interpolation to use. See Animation Constants for possible values. Default… Continue reading VectorKeyframeTrack
Matrix Transformations in Three.js
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
Substepping: Reducing Character Tunneling
Physics simulations in real-time 3D experiences depend on discrete time steps to update motion, collisions, and forces. When objects move too far between frames—due to frame drops, high velocities, or gravity—they may pass through solid surfaces without registering a collision. This issue is known as tunneling. Substepping addresses this by splitting each frame’s physics update… Continue reading Substepping: Reducing Character Tunneling
VR – Look to Select
The simplest and possibly most common is the Google Cardboard style of VR which is basically a phone put into a face mask. This kind of VR has no controller so people have to come up with creative solutions for allowing user input. The most common solution is “look to select” where if the user… Continue reading VR – Look to Select
EffectComposer
Used to implement post-processing effects in three.js. The class manages a chain of post-processing passes to produce the final visual result. Post-processing passes are executed in order of their addition/insertion. The last pass is automatically rendered to screen. Import EffectComposer is an add-on, and must be imported explicitly. See Installation / Addons. import { EffectComposer }… Continue reading EffectComposer
Advanced Character Animation with Three.js and Skeletal Rigging
Overview Three.js is a powerful JavaScript library for creating 3D graphics in the browser, and its capabilities extend to advanced character animation through skeletal rigging and inverse kinematics (IK). This article explores how to import and rig 3D character models from tools like Blender, leverage Three.js’s SkinnedMesh and AnimationMixer for complex animations, and implement inverse… Continue reading Advanced Character Animation with Three.js and Skeletal Rigging
Debugging and Troubleshooting Common Three.js Issues
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
Unreal Engine Web Apps
Unreal Engine (UE) is widely known for high-end game development, but it also supports web deployment, enabling rich, real-time 3D experiences accessible directly from a browser. This article covers the process, benefits, and optimisation techniques for building and deploying Unreal Engine Web Apps. 1. What are Unreal Engine Web Apps? Unreal Engine Web Apps are browser-based applications powered by… Continue reading Unreal Engine Web Apps
What is Voice Cloning?
This article explains how to integrate voice cloning technology with Three.js projects, and how to optimise audio performance for real-time 3D and WebXR experiences. Voice cloning can be used to create realistic narrations, NPC dialogue, or immersive audio environments in 3D applications. 1. What is Voice Cloning? Voice cloning refers to the process of generating synthetic speech that mimics… Continue reading What is Voice Cloning?