Method for modeling at least one light source

A process, implemented by computer, of modeling at least one light source, the computer comprising a processing system and memory for storing an application that, when executed by the processing system, implements a method, the method comprising:

• receiving by the processing system input data comprising data having characteristics of the materials composing the light source;
• and
• preparing, by processing system, a data model representing the light source, the data model based on the data of characteristics of the materials received as well as geometric data stored in the memory of the computer, and data of characteristics of light emission from the light source that are stored in the memory of the computer, of typical data representative of a light field emitted by the light source, the geometric data describing the light source, and defining a plurality of volumes and surfaces;
• wherein, during creation of the data model:
• the data of characteristics of materials is linked to the volumes and to the surfaces of the geometric data;
• and
• the data of characteristics of light emission from the light source are linked to the surfaces of the geometric data;
• storing in memory, by the processing system, the data model in the memory of the computer.