| 摘要 |
PURPOSE: To reduce the fluctuation of generation time for moving image generation. CONSTITUTION: By an interpolation judgement threshold value inside a register 13 for judging whether the value of the picture element of a calculation object is to be obtained by calculating the picture element of the calculation object sampled based on a predetermined picture element sampling interval value inside the register 12 by using a light beam tracking method in a generator 10, gradually narrowing the picture element sampling interval value for the picture element among the picture elements, using the correlation information of the surrounding picture elements obtained in the calculation process of the light beam tracking method and performing interpolation of the luminance of the picture element is to be newly calculated, the two-dimensional graphic image of the frame number N (N is an integer) is generated from scene data. The picture element sampling interval value and the interpolation judgement threshold value for generating the image of the frame of the frame number (N+1) are changed by a controller 14 corresponding to the image generation time of the frame of the frame number N, similar processings are performed for (N+2) and suceeding ones and two-dimensional moving images are obtained. |
