| 摘要 |
PURPOSE:To enable an excellent simulation in virtual reality and to provide training high in accuracy by constituting it so as to display a variation in dynamic visual ranges due to the effect of a cloud or mist displayed. CONSTITUTION:It is provided with a simulation calculator 1, a simulated sight calculator 21 and a simulated sight generator 23. In addition, it is also provided with data for a cloud and mist having a visibility variation, and a visibility level is set according to a distance, where a visual point exists in the cloud or mist, at the simulated sight calculator 21. Therefore if the visual point assumed by a trainee sifts and comes into the cloud or mist, the visibility level is calculated from the distance in them and the visibility variation. The visibility level varies according to an extent entering in the cloud or mist, thus a dynamic visibility variation is displayed. |
