A representation method for material data considering LoD

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We have analyzed change in visual impression depending on Level-of-detail(LoD) of an object's surface, and developed a real-time representation method for material data to increase noticeability of surface bumpiness considering human visual features. As a result, the method adapts LoD to object surface details and changes rendering technique corresponding LoD, and improves performance around 10-20%. We also added realism to surface dents or grooves without deforming surface geometry, and achieved better perception of the three dimensional surface shape.