Array of cameras

An advance technique using ArrayCamera with a model animation

Code
Jaime Torrealba
Jaime Torrealba
models

This experiment demonstrates the advanced ArrayCamera technique in Three.js, providing multiple simultaneous views of a 3D scene through different camera perspectives. This approach is commonly used in security systems, architectural visualization, and game development for split-screen effects.

What You'll See

The scene features a rigged 3D knight model viewed from four different camera angles simultaneously:

  • Left Bottom Viewport: Side perspective showing the model's profile
  • Center Bottom Viewport: Front-facing view with detailed character features
  • Right Bottom Viewport: Opposite side angle for complete spatial understanding
  • Center Top Viewport: Strategic overview perspective

Technical Implementation

This experiment showcases several advanced TresJS and Three.js concepts:

  • ArrayCamera Setup: Creates multiple PerspectiveCamera instances with different viewports
  • Responsive Design: Cameras automatically adjust to window size changes using useWindowSize
  • GLTF Model Loading: Loads a rigged knight model with animations using useGLTF
  • Animation System: Implements idle animation using useAnimations composable
  • Viewport Management: Each camera renders to a specific screen region defined by Vector4 coordinates

Key Features

  • Performance Optimized: Single render pass for multiple viewpoints
  • Responsive Layout: Viewports automatically resize with window dimensions
  • Animated Character: Rigged model with idle animation loop
  • Professional Lighting: Multiple light sources for optimal model visibility
  • Grid Reference: Helper grid for spatial orientation

This technique is particularly valuable for applications requiring multiple simultaneous perspectives, such as security monitoring interfaces, architectural walkthroughs, or multiplayer game implementations.