论文标题
半透明物体的实时渲染和散射效果的编辑
Real-time Rendering and Editing of Scattering Effects for Translucent Objects
论文作者
论文摘要
近年来，半透明物体透明效应的透明效果的影片渲染是一个热门的研究主题。基于双向表面散射函数的（BSSRDF）偶极子近似值，提出了一种透明对象弥漫性散射效应的实时光真逼真的渲染和材料动态编辑方法。通过主成分分析，将近似值中的弥散散射材料函数分解为与形状相关函数的产物形式和与透明材料相关的函数；使用这种分解表示，在实时的影片渲染框架和散射传输的实时呈现框架下，以实现各种光源下半透明对象材料的实时编辑。此外，还提出了一种空间结构域中预成立的辐射转移数据的二次小波压缩方法。在空间分布位置的表面点相关性，在确保渲染质量的前提下，数据被大大压缩，并且渲染得到了有效改进。实验结果表明，本文中的方法可以产生高度逼真的半透明效果，并确保实时渲染速度。
The photorealistic rendering of the transparent effect of translucent objects is a hot research topic in recent years. A real-time photorealistic rendering and material dynamic editing method for the diffuse scattering effect of translucent objects is proposed based on the bidirectional surface scattering reflectance function's (BSSRDF) Dipole approximation. The diffuse scattering material function in the Dipo le approximation is decomposed into the product form of the shape-related function and the translucent material-related function through principal component analysis; using this decomposition representation, under the real-time photorealistic rendering framework of pre-radiative transmission and the scattering transmission to realize real-time editing of translucent object materials under various light sources. In addition, a method for quadratic wavelet compression of precomputed radiative transfer data in the spatial domain is also proposed. Using the correlation of surface points in the spatial distribution position, on the premise of ensuring the rendering quality, the data is greatly compressed and the rendering is efficiently improved. The experimental results show that the method in this paper can generate a highly realistic translucent effect and ensure the real-time rendering speed.
