What is a Point Light?

• A. A light that emits 360 degrees from a spot in the world.
• B. A light that does not have any identifiable source position and so the light object can be placed anywhere in the scene. All objects in the scene are illuminated as if the light is always from the same direction.
• C. A hard-edged light that only illuminates a small area.
• D. A light that only lights up transparent objects.

Answer: (A)

A Point Light is a light source that emits light in all directions from a single point in space. Think of it like a tiny bulb placed at a specific position; its rays radiate outward in every direction (360 degrees) and their intensity falls off with distance. This creates a spherical region of illumination, which you can adjust with the light’s range and intensity and shape the shading with shadows if enabled. In Unity, this corresponds to the Point Light component you place at a world position to light nearby objects evenly from that spot. This is different from a directional light, which shines parallel rays from an infinitely distant source with no fixed position, and from a spotlight, which emits light in a cone with defined angles. The option describing a light that only lights up transparent objects doesn’t fit how point lights behave in general shading.