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Jeffrey Mathew
Jeffrey Mathew

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How We Built an Immersive 3D Web Exhibition Using Next.js & Three.js

The web is evolving. We are no longer constrained to flat, two-dimensional pages of text and static images. Today, the browser is a canvas for immersive, cinematic storytelling.

At Teckgeekz, a top-tier web development company, we constantly push the boundaries of what is possible in the browser. To showcase this, we decided to build a high-performance 3D portfolio project: The Rajputs | Immersive 3D Exhibition.

In this post, we’ll walk you through the architecture, the technology stack, and the essential steps we took to build this seamless 3D experience—without giving away all of our secret sauce. 😉


🏗️ The Architecture: Choosing the Right Stack

When building a 3D website, performance is everything. Dropping below 60FPS ruins the immersion. We needed a stack that offered both developer velocity and absolute control over the rendering pipeline.

  • The Foundation: Next.js (React) We chose Next.js to handle the scaffolding. It provides out-of-the-box SEO (essential for a portfolio), optimized font loading, and robust state management.
  • The 3D Engine: Vanilla Three.js While React Three Fiber is incredibly popular, we opted for vanilla three.js to manage our scene directly. This gave us the fine-grained control needed for our custom camera rig and advanced lighting setup.
  • The Polish: postprocessing Library Default WebGL can look a bit flat. To achieve a cinematic, AAA-game aesthetic, we integrated the postprocessing library to handle anti-aliasing, bloom, and tone mapping.

🛠️ The Core Pillars of Development

1. Scroll-Driven Storytelling (The Camera Rig)

The core mechanic of the exhibition is scroll-driven navigation. Instead of traditional scrolling, the user's scroll wheel drives a virtual timeline.

We built a custom animation loop that interpolates the 3D camera’s position, rotation, and fov based on the current scroll percentage. By applying custom easing functions (using linear interpolation or "lerp"), we ensured that the camera glides smoothly between keyframes, even if the user scrolls erratically.

2. Asset Optimization and Loading

Loading highly detailed 3D models (.glb), high-resolution textures, and environment maps (.exr) can easily cause a browser to crash if not handled correctly.

We implemented a robust LoadingManager that pre-fetches and decompresses all geometries before the scene is ever revealed to the user. We also utilized DRACO compression for our 3D models to drastically reduce file sizes while maintaining visual fidelity.

3. Achieving the "Cinematic" Look

This is where the magic happens. The exhibition has a very distinct, dark, and moody aesthetic. Getting this right required stepping away from standard lighting techniques:

  • Physically Based Rendering (PBR): We strictly used MeshPhysicalMaterial for the main statues.
  • Taming the Specular: Modern WebGL rendering can make objects look overly shiny or "wet". We aggressively dialed down the specularIntensity and relied on a very dim, low-intensity environment map (Cyclorama) to provide a subtle base illumination.
  • ACES Filmic Tone Mapping: Instead of standard linear or sRGB tone mapping, we used ACES_FILMIC. This is an industry standard in film and gaming that elegantly desaturates extreme highlights, preventing our localized fire particles from "blowing out" the image.
  • Ultra Anti-Aliasing & Anisotropy: To remove jagged edges on the 3D models, we applied SMAAEffect on the Ultra preset. We also maximized texture anisotropy so that textures remain razor-sharp even when viewed at extreme grazing angles.

4. Seamless HTML Integration

A 3D website isn't just a canvas; it needs accessible, readable text. We overlaid standard HTML/CSS elements on top of the <canvas>. By syncing the React state with the Three.js scroll timeline, we trigger CSS transitions that fade text in and out perfectly in time with the camera movements.


🚀 The Result

The final product is a flawlessly smooth, visually stunning interactive documentary: The Rajputs | Immersive 3D Exhibition. It runs beautifully on both powerful desktop rigs and mobile devices, proving that the web is ready for next-generation digital experiences.

Building 3D web experiences requires a deep understanding of rendering pipelines, memory management, and modern web frameworks. It’s a delicate balancing act between visual fidelity and performance.

Ready to elevate your digital presence?

If your brand is ready to step out of the 2D past and into the immersive future, we can help. As a premier digital agency, Teckgeekz specializes in crafting bespoke, high-performance web applications.

Explore our Web Design Services and let’s build something extraordinary together.

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