Professional perception of the architectural space characterizes the top level of mastership of an architect. The intuition of an experienced designer allows him to create in his imagination quite bright and accurate images, but one needs years to gain this kind of priceless ability. Using methods of virtual modeling significantly intensifies the process of training. Modeling of architectural space assumes firstly purposeful, selective perception of a reality at the level of mental images, and secondly, realization of these images into physical and virtual models. Adequacy of perception of architectural space bases on the advanced spatial imagination of a specialist. Means of forming spatial imagination traditionally are all kinds of reflection of a reality: from bi-dimensional images (an illustration, a diagram, a drawing, a photo, etc.) up to three-dimensional physical models. With the computer technologies we have received one more version of reality modeling - virtual modeling. The word collocation "virtual modeling" has become today a synonym of computer modeling. Digital models are the least material among all possible physical ones, but nevertheless they are visual and convincing. Dialogue between consciousness and computer model is dynamical. The model is easily changed and allows making thousand manipulations with itself, at times not predicted from the point of view of traditional modeling. Probably that is the reason why computer modeling has deserved the term "virtual", i.e., "real". On the one hand, computer technologies erase borders between bi-dimensional and three-dimensional modeling, on the other hand, they (technologies) allow to subject the process of transformation of one kind of modeling into another kind to steadfast studying. Mechanisms of interrelation of bi-dimensional and three-dimensional modeling are of indisputable interest as means of active influence on the professional perception. The geometrical aspect is obvious: the two-dimensional image is a projection of three-dimensional object to a plane. But this projection can contain not only the information on the geometry, but also on the function, on the image, on the volume and spatial plan. Depending on the given task it can inform on any of the aspects of architectural integrity reflecting planning, functional, constructive and other properties of the environment and the object in the forms of projections, schemes, symbols. Methods of parallel work with two- and three-dimensional models have been known for a long time and are widely used both in the educational process, and in the real practice, as a layout and graphic method. Today this method is used together with the virtual method. Besides, virtual modeling makes the process of interaction of consciousness with model visual and consequently accessible to studying. It also represents it in the most detailed form. In result there appears an opportunity to manage this process, to actively influence the formation of professional perception.