To examine effectivity of virtual systems on architectural representation, our team of researchers carried on a comparison of spatial perception. Freshmen students of architecture toured a computer model of our Faculty of Business; 15 students used HMD-helmet, 15 navigated on screen, and another group visited the building. After that, all of them answered a questionnaire about the experience. Similar studies [4, 5, 6, 7, 8] have reported a fair understanding of virtual spaces with some

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... of sizes, loss of orientation and technical bias. Our evaluation was based on general descriptions of architectural living [9, 10, 11, 12, 13] ; asking about configuration of rooms and building, proportions, associated feelings, semantic interpretation, constructive elements, urban and geographical context and duration of experience.