摘要： The article presents a solution to the problem of work and time consuming of the objects floodlighting projects creation. Currently, the only technically correct methods for creating such projects are a three-dimensional computer simulation using photometric files of luminaires or field trials using real equipment. Both of these methods have their advantages, but also many disadvantages. Among architects, in turn, a popular method of floodlighting designing is graphic processing of daytime or evening images objects. The method is relatively fast and it gives photorealistic effects but it is technically incorrect. An architect or graphic designer creates a picture that is attractive to the eye, but usually has nothing to do with reality. This is due to the fact that the lighting parameters of both lighting equipment and analyzing this type of project in terms of technology are not taken into account. The article presents a solution to this problem. It describes a system created especially for this purpose based on a dedicated computer application that allows simulation of the object floodlighting using its daily photograph. This is technically correct simulation, because it uses photometric files of luminaires. The system allows correction of basic photometric parameters: editing of photometric files, luminous flux, light in different directions, color temperature and the use of color filters. The computer application also enables photo editing, geometric correction, measurement and defining reflection and transmission properties of materials from which the object is actually built. Full lighting analysis is also possible and is based on luminance and illuminance distributions generated in the false color scale and measurements in points and selected areas. The advantages, disadvantages and limitations of the developed system are presented.