The difference between floodlights and spotlights

Update:06 Mar 2020
Summary:

Spotlight is a kind of hard light which is projected ou […]

Spotlight is a kind of hard light which is projected out. It has a long distance to project light, normal color temperature of light, pure color on the surface of the object, and can obtain good picture color effect. It is a kind of light gathered by using a spotlight lens or a reflector. This kind of luminaire has high luminous intensity and brightness. It belongs to the hard light type and can form an obvious shadow on the surface of an object. It plays a "leading role" in the luminaire and is often used as the main light and contour light of a character or scene.
Spotlights can project highly directional beams.

It can produce bright highlights and sharp lines, dark shadows. In most cases, people always use floodlights and spotlights in a comprehensive way, which can not only ensure the overall soft light distribution, but also make the strong light area sharp, clear and bright.
The light angle of the spotlight must not exceed 120 degrees, otherwise the light is not the effect of the spotlight. The best choice for the angle of light exhibition is below 90 degrees. The blur value of light shadow is generally set to 8.
Floodlight is a kind of point light source which can irradiate uniformly in all directions. Its irradiating range can be adjusted arbitrarily, and it is a regular octahedron icon in the scene.

Floodlights are the most widely used light source in the production of renderings. Standard floodlights are used to illuminate the whole scene. Multiple floodlights can be applied in the scene. In order to produce better results, a light bulb for shooting is installed into a large reflective umbrella for use as a high brightness diffusion light source. Although it is indispensable for lighting in the shed, it is also one of the light sources with good lighting effect for general amateur indoor photography. Floodlights are not spotlights, projectors, spotlights. Floodlights produce highly diffused and directionless light rather than beams with clear outlines, resulting in soft and transparent shadows. When they are used for object lighting, the speed of lighting reduction is much slower than when they are used for spotlight lighting, and even some floodlights with very slow lighting reduction look like a light source without shadows. The spotlight projects a directional, well-defined beam of light to illuminate a specific area.