Light & Engineering Vol. 23, No. 2, pp. 43-48, 2015 Svetotekhnika No. 2, 2015, pp. 59-60 PRINCIPLES OF CONSTRUCTING LIGHT FIELD MODEL FOR A ROOM WITH CURVILINEAR QUADRANGULAR LIGHT OPENINGS BY MEANS OF THE DOT CALCULATION Vladimir A. Egorchenkov1 and Eugene V. Konopatsky2 1 The Kiev National Aircraft University, Ukraine; 2 The Donbas’s National Academy of Construction and Architecture, Makeyevka, Ukraine. <...> E-mail: aasmandrus@mail.ru ABSTRACT This work describes a technique of constructing a light fi eld model for rooms with quadrangular light openings having curvilinear counters. <...> Based on these dots, elementary solid angles with vertexes in a reference point are computed. <...> Summation of these angles with their lighting indicators determines integral characteristic of the light fi eld. <...> Keywords: modern architecture, quadrangular light opening, curvilinear counters, scanning dots, dot calculation, illuminance, light vector. <...> Today, one can see buildings of many confi gurations and of various non-standard volumes. <...> A new trend in modern architecture is the integration of houses with their surrounding landscape, without reducing the comfort of the inhabitants. <...> Replacing straight lines and habitual cubic and angular houses with smooth confi gurations is becoming common; the sight of these houses brings to mind the dwelling of the Flintstones and hobbit houses. 43 Solutions for natural illumination systems in such buildings are peculiar. <...> Looking carefully at architecture objects of gothic, baroque, rococo, ultra baroque, etc. styles, we see round, arch, oval, and other confi gurations of light openings. <...> This is also true for much modern architecture. <...> Nowadays architecture has reached a level where its light openings can take various forms and outlines, and they can be placed arbitrarily in the space (Fig. 1). <...> One of the primary problems for specialists is to fi nd principles of simulating the light medium in such buildings, which would allow bringing parameters of the medium near to optimal values as much as possible. <...> Architects should not only create the buildings to harmoniously fi t into their environment, but also know what parameters are obtained in the rooms and to what extent they differ from the natural <...>