Diamond Ring Viewer

A sophisticated 3D ring configurator built with React, Three.js, and React Three Fiber. This application allows users to customize and view engagement rings with realistic diamond rendering and metal finishes.

Features

• Interactive 3D ring visualization
• Real-time material and color customization
• Realistic diamond rendering with caustics and refraction
• Customizable engraving
• Multiple metal options (White Gold, Yellow Gold, Rose Gold)
• Various stone color options
• Environment-based lighting and reflections
• Optional bloom and shadow effects

Technical Implementation

Scene Organization

The application uses Three.js layers for organized rendering:

• Layer 0: Environment (for reflections)
• Layer 1: Metal parts (head and shank)
• Layer 2: Diamonds

Component Structure

The scene is built from separate GLB models:

• head.glb: Contains the crown and prongs
• shank.glb: Contains the ring band and accent stones

Meshes are categorized by naming convention:

• DIA-*: Diamond components
• MTL-*: Metal components
• MTL-ENG-SHANK-1: Special engraving surface

Diamond Rendering System

CubeCamera and Caustics Integration

The application uses a sophisticated system for realistic diamond rendering:

<CubeCamera key={cameraKey} resolution={256} frames={1} envMap={modifiedGemTexture}>
  {(texture) => (
    <Caustics
      backfaces
      color={stoneColor}
      lightSource={[5, 5, -10]}
      ior={1.8}
      intensity={0.1}>
      <Diamonds material={MeshRefractionMaterial} />
    </Caustics>
  )}
</CubeCamera>

Key features:

• Environment-mapped reflections using CubeCamera
• Realistic light refraction through stones
• Configurable caustics effects
• Layer-based reflection capture
• Optional simplified transmission material for performance

Stone Positioning

• Automatic stone offset calculation from shank center
• Dynamic positioning based on shank geometry
• Configurable stone offset distance
• Bounding box calculations for accurate placement

Materials and Lighting

Metal Materials

• Uses MeshStandardMaterial
• Configurable properties:
  • Metalness
  • Roughness
  • Color
• Preset metal options:
  • White Gold
  • Yellow Gold
  • Rose Gold

Diamond Materials

Two rendering modes:

1. With Caustics:
   • Uses MeshRefractionMaterial
   • Full reflection and refraction
   • Real-time environment mapping
2. Without Caustics:
   • Uses MeshTransmissionMaterial
   • Simplified transparency
   • Better performance

Environment and Effects

• HDR environment mapping
• Optional bloom effects
• Accumulative shadows
• Auto-rotation option
• Dynamic engraving with text rendering

Configuration Options

The application provides several customizable parameters:

• Caustics toggle
• Gem exposure
• Metal properties (metalness, roughness)
• Stone offset
• Shadow settings
• Bloom effects
• Auto-rotation
• IOR (Index of Refraction)
• Various material-specific parameters

Performance Considerations

• Layer-based rendering for optimal reflection calculations
• Optional caustics for performance vs quality trade-off
• Configurable bloom resolution
• Optimized environment map loading
• Preloaded assets for faster initialization

Development

This project is built with:

• React + Vite
• Three.js
• React Three Fiber
• React Three Drei
• Leva for controls

Available Scripts

• npm run dev: Start development server
• npm run build: Build for production
• npm run preview: Preview production build

ESLint Configuration

For production applications, we recommend:

• Using TypeScript with type-aware lint rules
• Checking out the TS template
• Integrating typescript-eslint

Assets

Required 3D models and textures:

• /public/source/head.glb
• /public/source/shank.glb
• /public/source/GEM-immersive.hdr
• /public/source/MTL-immersive.hdr