论文标题
渲染带有分散界面的分层材料
Rendering Layered Materials with Diffuse Interfaces
论文作者
论文摘要
在这项工作中，我们介绍了一种新颖的方法，以实时的兰伯特表面渲染，并具有粗糙的双层涂层。我们表明，这种配置的外观忠实地用两个微纤维裂片，分别考虑到直接和间接相互作用。我们根据使用5D表的一阶定向统计（能量，平均值和方差）在数值上拟合这些裂片，并以分析形式和尺寸降低缩小到2D + 1D。我们通过有效地渲染粗糙的塑料和陶瓷，与地面真理相匹配，从而证明了我们方法的质量。此外，我们改进了最先进的分层材料模型，以包括兰伯特界面。
In this work, we introduce a novel method to render, in real-time, Lambertian surfaces with a rough dieletric coating. We show that the appearance of such configurations is faithfully represented with two microfacet lobes accounting for direct and indirect interactions respectively. We numerically fit these lobes based on the first order directional statistics (energy, mean and variance) of light transport using 5D tables and narrow them down to 2D + 1D with analytical forms and dimension reduction. We demonstrate the quality of our method by efficiently rendering rough plastics and ceramics, closely matching ground truth. In addition, we improve a state-of-the-art layered material model to include Lambertian interfaces.
