| 摘要 |
PURPOSE: To quickly calculate an index for easy hiding in the case of hiding an object to the back of a background by finding out the index for easy hiding by subtracting a distance up to a prescribed area in which the object exists from the depth data of the prescribed area. CONSTITUTION: A TV game device 1 is constituted of an I/O control circuit 6, a CPU circuit 7, a work memory 9, a character memory 12, a screen memory 14, etc. The CPU circuit 7 writes an object picture or a background picture read out from the memory 12 in the memory 14 to display the picture on a monitor 3. Since the CPU circuit 7 finds out the index for easy hiding by subtracting a distance up to a prescribed area in which the object exists from the depth data of the prescribed area, calculation considering the angle or the like of a visual line is made unnecessary and the index for easy hiding can be extremely quickly found out. |
