RENDERING METHOD AND APPARATUS OF PERFORMING BUMP MAPPING AND PHONG SHADING AT THE SAME TIME

摘要

PURPOSE: A rendering method and a rendering apparatus for bump mapping and phong shading are provided to perform simultaneously bump mapping and phong shading by improving a rendering method and a rendering apparatus. CONSTITUTION: The device comprise the first to the third interpolators(21,22,23), a bump map(24), the first and the second multipliers(25,26), the first and the second multiplexers(27,28), an exponent calculation portion(29), and an adder(30). A rendering method for bump mapping and phong shading a process for calculating ambient element values, a process for calculating and outputting diffusion element values, a process for calculating specular element values, a process for outputting selectively the specular element values before bump mapping, and a process for obtaining a value of intensity.