What is the purpose of Light Probes in Unity scene lighting?

• A. They render full real-time global illumination across the entire scene.
• B. Light Probes capture ambient lighting information to illuminate dynamic objects with indirect light.
• C. They store texture data for scene objects.
• D. They replace all light sources in the scene.

Answer: (B)

Light Probes provide indirect lighting to dynamic objects by sampling the ambient light in the scene. They store lighting information at multiple points in space, and when a moving object enters that space, it uses the nearest probes to interpolate how much bounced light and ambient color it should receive. This lets dynamic objects look correctly lit by indirect light without baking lightmaps for every object, which keeps performance reasonable while enhancing realism as objects move between lit and shadowed areas. They don’t render the entire scene’s global illumination in real time, they don’t store texture data, and they don’t replace light sources.