Flood light is a point light source that can illuminate evenly in all directions. Its illumination range can be adjusted arbitrarily, and it appears as a regular octahedron icon in the scene.

Flood light is the most widely used light source in rendering production. Standard flood light is used to illuminate the entire scene. Multiple Flood lights can be applied to the scene. In order to produce better effect, put the light bulb for shooting into a large reflecting umbrella for use as a high-brightness diffused light source. Although it is indispensable for indoor lighting, it can also be regarded as one of the light sources with good lighting effects for general amateur indoor photography.
Flood light is not a spotlight, projection light, spotlight. Flood light produces a highly diffuse, non-directional light rather than a well-defined beam, resulting in soft and transparent shadows, and when used to illuminate objects, the speed of illumination decay is much slower than when illuminated with spotlights, or even Some flood lights with very slow fading, appear to be a light source that does not produce shadows. Spotlights, on the other hand, project a directional, well-defined beam of light that illuminates a specific area.