PURPOSE: To enable the intuitive and rapid space direct operation of respective functions by solving a problem that a visual point or light source function can not be operated based upon operator's intension in a three-dimensional space and visualizing an attribute value necessary for the operation of each function as a three-dimensional graphic in a three-dimensional information processing system having a control function for a visual point and a light source.
CONSTITUTION: Visual point and light source function attribute recording means 15, 19 for respectively recording the attribute of visual point and light source functions and visual point and light source function shape position recording means 14, 18 for recording the geometric positional data of three-dimensional graphics obtained by visualizing these attribute values are separatively managed to update shape geometric data or shape positional data at the time of changing respective function attributes and by setting visual point and light source function expression control means 12, 16 for controlling the drawing data of function effects matched with respective shapes at real time respectively, an operator can intuitively and rapidly operate a visual point function or a light source function.
YOSHIMURA TETSUYA
SUGIURA MASAKI
