Light Dependent Texture Mapping

Gelb, Dan ; Malzbender, Tom ; Wu, Kevin

HP Development Company

关键词: texture mapping;    image based rendering;    computer graphics;    bump mapping;   

RP-ID  :  HPL-98-131R1

学科分类：计算机科学（综合）

美国|英语

来源: HP Labs

【 摘 要 】

In this paper we present a method for performing light-dependent texture mapping that can be implemented in current texture mapping hardware with low additional cost. Our method gives the impression of finely modeled surface detail that is properly illuminated as lighting moves relative to the object.As an image-based technique, it requires no complex geometric models as input, only a set of photographs or renderings of an object under varying light conditions.Light-dependent variations are captured by per-texel polynomial functions designed to be efficiently evaluated via slightly modified multi-texturing hardware.9 Pages