标题： BEDRF：用于交互式声音传播的双向边缘衍射响应函数 显示英文标题

标题： BEDRF: Bidirectional Edge Diffraction Response Function for Interactive Sound Propagation

摘要： 我们引入了双向边缘衍射响应函数（BEDRF），这是一种新的方法，用于通过路径追踪建模波绕边缘的衍射。 波的衍射部分在路径空间上表示为积分，波与边缘的相互作用仅使用边缘上点周围的局部信息，类似于用于视觉渲染的双向散射分布函数（BSDF）。 对于无限单个楔形，我们的模型生成的结果与解析解相同。 我们的方法可以轻松集成到使用路径追踪计算镜面和漫反射的交互式几何声传播算法中。 我们得到的传播算法可以近似涉及高阶衍射的复杂波传播现象，并能够处理动态、可变形物体以及移动的声源和听众。 我们在不同场景中突出展示我们方法的性能以生成平滑的听觉化效果。 显示英文摘要

摘要： We introduce bidirectional edge diffraction response function (BEDRF), a new approach to model wave diffraction around edges with path tracing. The diffraction part of the wave is expressed as an integration on path space, and the wave-edge interaction is expressed using only the localized information around points on the edge similar to a bidirectional scattering distribution function (BSDF) for visual rendering. For an infinite single wedge, our model generates the same result as the analytic solution. Our approach can be easily integrated into interactive geometric sound propagation algorithms that use path tracing to compute specular and diffuse reflections. Our resulting propagation algorithm can approximate complex wave propagation phenomena involving high-order diffraction, and is able to handle dynamic, deformable objects and moving sources and listeners. We highlight the performance of our approach in different scenarios to generate smooth auralization.