Image processing apparatus, image processing method, and recording medium for processing three-dimensional computer graphics

摘要

PROBLEM TO BE SOLVED: To provide an image processing technique capable of reducing a calculation amount compared to conventional shadow processing of a half shadow and generating the half shadow in real time in a general processor. SOLUTION: This image processor is provided with the first shadow image decision means 302 for deciding a first shadow image generated on an image of a second object by interrupting a light beam generated from at least one virtual light source by the image of a first object, the second shadow image decision means 304 for changing a display position of the first shadow image and deciding one or two or more second shadow images and a shadow image synthesis means 306 for superimposing and displaying the first shadow image and the second shadow image. Also, a shadow image luminance decision means 308 for respectively deciding the luminance of the first shadow image and the second shadow image is provided further.