Krauss-Maffei Wegmann Gmbh & Co. Kg

Gsf-Forschungszentrum Fuer Umwelt Und Gesundheit Gmbh

Michael Haubner

Manuel Pabst

Karl-Hans Englmeier

A method for synchronous representation of a virtual reality terrain in the form of polygons on a plurality of display devices by a plurality of connected simulation computers, may include generating position data specifying which region of the terrain was changed by a first computer; generating elevation data of the changed region by the computer; communicating position and elevation data the first computer to a second computer; selecting, on the basis of the position data, those polygons of the terrain which lie in the changed region by a control unit of the second computer; subdividing the selected polygons in each case into a plurality of sub-polygons by a tessellator unit of the second computer; calculating spatial coordinates of the sub-polygons in accordance with the elevation data by the second computer; and displaying the sub-polygons on a display device connected to the second computer.

Method for synchronous representation of a virtual reality in a distributed simulation system

A method and simulator for training a crew member of a vehicle, especially a military vehicle, in the interior of the vehicle. A camera films the vehicle interior and is to be fixed to the head of the crew member. A display device is to be disposed in the field of view of the crew member and is to be fixed to the crew member's head. Via markers in the vehicle interior, the position of a view is defined, and at the position of the view, a detail of a virtual vehicle external environment is overlaid in the display device as a function of the position and viewing direction of the crew member.

Method for training a crew member of a, in particular, military vehicle

Geometric surfaces of objects are displayed by a method which generates surface data of at least one object and stores this surface data in a first memory, generates data records for all surface data stored in the first memory and stores these data records in a second memory, generates additional surface data for the representation of object segments with a lower level of detail and stores this additional surface data in the first memory, generates and stores a hierarchical data structure with several data records addressable via pointer addresses to represent one part of the objects surface in the second memory, stores the pointer addresses of the data records stored in the second memory which are not referenced by any pointer addresses stored in other data records, computes in a arithmetic unit a minimum level of detail for representation of the object segment, compares the computed minimum level of detail for each data record whose address is stored in a third memory area with the level of detail stored in the data record, evaluates the results of the comparison for each data record, with the pointer addresses referencing surface data elements of the data records having a stored level of detail which is at least equal to the computed minimum level of detail being copied into a fourth memory area and with the pointer addresses stored in the other data records being copied into said third memory and erasing the pointer addresses referencing the data record from the third memory, and outputting the surface data elements addressed in the fourth memory area to an output device for geometric display of the object.

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Munich, Germany

Michael Haubner