Virtual cave represents block without one wall. Missing wall is used for entrance. Projectors are situated from outside and they synchronously light up the walls of the block, what creates experience of compact enviroment around the observer. Dimensions of side walls are 3 x 2,25 meters. Dimensions of the ceiling and floor are 3 x 3 meters. Dual projector projection is used for each side wall. Observer has 3D glasses on eyes which provides image with 3D depth. Ceiling and floor of projective cave has square shape. Difference between the shape of projected image and shape of wall is solved by coverage with doubled number of projectors. Appliance of around space is optimalised by usage of projection mirrors. In the space of device is situated speaker system 5+1 for achieving surround sound. Projectors are connected to computer cluster with appropriate imaging software. Cluster is situated in small outlying room. In the space of cave is situated console computer for controlling the whole system. Controll of movement is performed using Joystick and Space pilot in hands of observer.

Projection walls are formed with special plastic plates, designated for reverse projection. Floor is reinforced with safety glass, in order to allow the movement inside the block. Whole construction of block is lifted whereupon for entrance into cave space stairs were builded. For projection on walls 14 projectors are used. Imaging cluster contains eight computers. Seven of these computers are dedicated to rendering of image for individual walls in stereoscopic mode and one is master. Computers contains high-performance graphic cards for providing smooth rendering. Another computer serves as a remote console for controlling display system and synchronously for recieving instructions from user. Stereoscopic system INFITEC is used. User has special glasses on eyes with device for detecting the position in the space. Position of observer serves for correct conversion of projected images and stereoscopic experience against observer.

System of projectors and screening walls providing experience of 3D space

Speakers positioning in cave space creates experience of surround sound

Control elements in hands of user allows movement in space of virtual reality and manipulation with virtual objects

Eight high-performance computers ensures sufficient performance for smooth and interactive displaying of virtual reality

Simply and clearly software allows effective control of virtual cave