| 摘要 |
PROBLEM TO BE SOLVED: To form a texture changing model in a comparatively small image data quantity by obtaining a synthetic model by respectively, synthesizing first and second models defined by a shape and a texture by first and second transparency, and complementarily changing these transparency. SOLUTION: When a plotting command to command synthesis of two models is generated, a VDP(video display processor) 130 takes in image data of models M1 and M2 from a VRAM 131, and forms models M1' and M2' different in transparency by multiplying image data of an R, G and B form by transparency (a and b). Next, image data of the respective models are added together, and two models are synthesized, and a synthetic model by superimposing a texture according to respective transparency is formed. A CPU 101 changes the synthetic model to a texture of the other model from a texture of one model by writing in the plotting command while changing transparency in response to the frame number. |
