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I built ASFORGE FITNESS as a fitness-platform concept that puts an animated 3D character inside the website’s hero rather than treating the page as a stack of ordinary cards and buttons. React handles the site interface; React Three Fiber brings a Three.js scene into that same React application. The result combines a cinematic opening with workout and diet content, membership plans, and an AI coach. This is the author’s account of the build—not a performance test or evidence of business results.
How the site is divided between React and Three.js
The main architectural decision was to keep conventional interface elements in React and build the 3D experience with React Three Fiber (R3F), a React renderer for Three.js. R3F lets a scene be described with components and JSX, so it can live alongside the page’s navigation, text, buttons, and content sections instead of requiring a separate application.
R3F’s Canvas establishes the scene and camera, manages rendering, and sizes itself to its parent element. That makes the parent container part of the layout: if the hero is meant to hold the scene, it needs a defined space for the canvas as well as room for the surrounding interface. The framework’s documentation recommends familiarity with React and Three.js basics such as scenes, cameras, meshes, geometry, and materials. React Three Fiber’s introduction and first-scene guide explain that relationship.
What belongs in the React interface
Page content that behaves like a normal website—navigation, calls to action, membership information, and workout or diet sections—can remain ordinary React UI. The 3D canvas is one part of the composition, not a replacement for the site’s structure or content.
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What belongs in the scene
The character, its lighting, environment, and animated visual effects belong in the Three.js scene. R3F expresses those scene elements as components, which helps keep the 3D work organized within the React app.
How I added the 3D character
The project article describes loading a GLB character model with Drei’s useGLTF hook and rendering the loaded scene as a Three.js primitive. In the example, the asset path is /models/character.glb. The implementation challenge the author highlights is framing: scale and position determine whether the character feels too large, too small, or partly outside the hero.
const { scene } = useGLTF('/models/character.glb')
return <primitive object={scene} scale={1} position={[0, 0, 0]} />The scale and coordinates above are illustrative defaults, not settings reported as final values for ASFORGE FITNESS. The right framing depends on the model and on the space reserved for text and controls. For a different asset workflow, R3F’s ecosystem includes gltfjsx, a tool for turning GLTF assets into JSX components; the project account does not say that it used this tool. The official introduction lists it among the ecosystem options.
How I approached motion and visual effects
The author reports playing the character model’s built-in animation and layering scene details such as stars, particles, glowing rings, lighting, and background effects. These are the ingredients described for the project; the account does not provide a measured rendering-cost comparison or a device benchmark for them.
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Use authored animation when the model provides it
A GLB can include animation authored with the character. The project account says its model animation was played in the site, distinguishing that motion from effects created in code.
Use per-frame updates for continuous custom motion
For motion driven by code, R3F’s animation guide documents useFrame, which runs code during the render loop. Its example updates a referenced Three.js object directly rather than triggering React state updates on every frame. That is a useful pattern for continuous changes to scene objects; ordinary interface state can still be handled with React. See the R3F animation guide.
Balance effects with the visual job of the hero
Glow, particles, and postprocessing can contribute to a cinematic look, but the sources do not establish how much rendering work this particular scene requires. Treat effects as design choices to validate on the devices and browsers the site intends to support, not as a guaranteed performance level.
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How I composed the hero for different screens
The author describes composition as more than placing a model in a canvas. The hero text, buttons, navigation, screen size, character scale, and camera position all need to work together. A model that looks balanced in isolation can obscure a call to action or leave too little room for content once it is placed in the page.
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- Check that the character’s position and scale leave the hero copy and buttons readable.
- Adjust the camera and object framing together rather than treating either as an isolated setting.
- Revisit the composition at narrower screen widths, where the text and model compete for less space.
- Test interaction and rendering on the mobile devices you plan to support. The project account identifies mobile performance and interactions as future work, so it does not establish that the experience was smooth across devices.
How to make a WebGL-dependent hero fail gracefully
A 3D canvas depends on WebGL, which can fail—for example, when GPU support is disabled or a graphics driver is faulty. The R3F Canvas API documents error handling, including wrapping a canvas in an error boundary. The Canvas API reference describes this failure context.
For a production site, pair that error handling with useful HTML content that remains available if the scene cannot render. Keep essential navigation, fitness information, and calls to action outside the canvas so a rendering failure does not make the page unusable. This is a practical recommendation based on the documented WebGL failure condition; it is not a feature the project account says it implemented.
What this project demonstrates—and what it does not
ASFORGE FITNESS shows one way to combine a React-built fitness interface with a Three.js scene composed through React Three Fiber: load a GLB character, frame it as part of the hero, add animation and atmosphere, then arrange the rest of the page around that visual. The article describes a concept and its implementation choices. It reports no benchmark, conversion statistic, accessibility conformance result, or measured business outcome, so none can be inferred from the walkthrough.
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