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Physically-Based Interactive Bi-Scale Material Design
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DOI：10.1145/2024156.2024179.png)
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Abstract
En 中文
We present the first physically-based interactive system to facilitate the appearance design at different scales consistently, through manipulations of both small-scale geometry and materials. The core of our system is a novel reflectance filtering algorithm, which rapidly computes the large-scale appearance from small-scale details, by exploiting the low-rank structures of the Bidirectional Visible Normal Distribution Function and pre-rotated BRDFs in the matrix formulation of our rendering problem. Our algorithm is three orders of magnitude faster than a ground-truth method. We demonstrate various editing results of different small-scale geometry with analytical and measured BRDFs. In addition, we show the applications of our system to physical realization of appearance, as well as modeling of real-world materials using very sparse measurements.
Keywords:
bi-scale
material editing
reflectance filtering
low-rank matrix
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