Creative Coding. Mar 15, 2026. 10 min read.
WebGL lets you build genuinely immersive 3D scenes in the browser, but only if the architecture underneath is solid. Dropping it into a React app means keeping the render loop separate from the component tree, because the two don't share a mental model.
The Canvas Problem
React re-renders declaratively and diffs the result. WebGL just runs, continuously and imperatively, frame after frame. Making those two coexist is the real problem with WebGL in React.
Three.js and React Three Fiber
React Three Fiber wraps Three.js in an API that actually feels like React: components become meshes, hooks drive the animation loop, and the whole scene graph is managed declaratively instead of by hand.
Performance Priorities
Instanced Meshes: Render thousands of objects with a single draw call using InstancedMesh.
Frustum Culling: Three.js handles this automatically, but understanding it helps you structure scenes efficiently.
Texture Compression: Use KTX2/Basis compressed textures to cut GPU memory and load time.
3D in the browser can look genuinely cinematic. The hard part isn't the code, it's knowing when the extra complexity is worth it.