METHOD FOR APPLYING ILLUMINATION EFFECTS TO THREE- DIMENSIONAL MODEL, PLOTTING DEVICE AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a technology for applying illumination effects from an arbitrary angle to the arbitrary place of the surface of an object 500 expressed as a three-dimensional model. SOLUTION: Processing for clearing an alpha map, and for plotting the surface side of a model 600, and for setting a preliminarily decided alpha value is repeated from an outside model 600d to an inside model 600a. Then, processing for plotting the back side of the model 600, and for setting the preliminarily decided alpha value of one more outside model is repeated from the inside model 600a to an outside model 600d. Then, an object 500 is re-plotted by using the prepared alpha map.