r3f-lighting

To set up realistic lighting in React Three Fiber, combine ambient and directional lights within a Canvas, enable shadow casting, and use Drei helpers to configure shadow maps and environment integration for believable scene illumination.

React Three Fiber supports ambient, hemisphere, directional, point, spot, and rectAreaLight types. Ambient and hemisphere lights provide base illumination, directional lights simulate sunlight with shadows, while point, spot, and rectArea lights create localized or focused lighting effects.

Yes, you can use HDR environment maps in React Three Fiber for realistic reflections. By integrating Drei's Environment component, you can apply image-based lighting (IBL) to achieve convincing material reflections and global illumination in product previews and architectural showcases.

This lighting approach works well for interactive product previews in React Three Fiber. It covers light types, shadow configuration, and environment integration needed to render believable illumination and reflections for interactive 3D products and architectural showcases.

R3F shadows often fail when shadow casting is not enabled on the Canvas or lights, or when shadow map resolution and camera frustum are misconfigured. Properly setting up shadow properties on directional or spot lights ensures accurate shadow rendering.

The best way to add environment lighting to a React Three Fiber scene is using Drei's Environment helper to load HDR files for image-based lighting. This provides realistic reflections and ambient illumination without manually placing multiple light sources.