BRDF-Shop: An artistic tool for creating physically correct BRDFs
نویسندگان
چکیده
We present an interface for quick and intuitive development of arbitrary, but physically correct, Bi-directional Reflectance Distribution Functions, or BRDFs. Our interface, referred to as BRDF-Shop, provides artists the ability to create a BRDF through positioning and manipulating highlights on a spherical canvas. We develop a novel mapping between painted highlights and specular lobes of an extended Ward BRDF model. The implementation of BRDFShop utilizes programmable graphics hardware to provide a realtime visualization of the material on a complex object in environment lighting. CR Categories: I.3.4 [Graphics Utilities]: Graphics editors; I.3.6 [Methodologies and Techniques]: Interactive Techniques; I.3.7 [Three-Dimensional Graphics and Realism]: Color, shading, shadowing, and texture
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