What is the difference between DMX512 point light source and area light source

1. Distinction between DMX512 point light source and area light source

DMX512 point light source and area light source are relative

The light source is far apart, and the light you receive can be close to the parallel line, then at this time you can call this light source a surface light source; For example, if the sun shines on us, the light taken by the hands and the light received by the feet can be considered parallel, and the light on all the bodies is parallel, and at this hour we say that the source of the illumination we receive is the area light source;

When the receiving source is replaced by the earth and the moon, or replaced by the Chengping Ocean and the Himalayas, at this hour, the light to the two sides of the receiver, the angle difference is very large, and if it is not overlooked, the emission source is called DMX512 point light source;

There are also line light sources, like fluorescent lamps, the light emitted by the divergence point on the light source to a unified point on an object, there is an angle difference between the rays, and this hour is called a line light source.