A Physically Plausible Model for Rendering Highly Scattering Fluorescent Participating Media
A Physically Plausible Model for Rendering Highly Scattering Fluorescent Participating Media
复制标题
用于渲染高度散射荧光参与介质的物理上合理的模型
DOI：
10.2312/egwr/egwr01/197-204
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
F. Schürmann
中科院分区：
文献类型：
--
作者：
M. Abdellah;A. Bilgili;Stefan Eilemann;H. Markram;F. Schürmann
我们提出了一种新的路径跟踪算法的扩展，该算法能够在荧光结构存在的情况下处理高散射参与介质。该扩展是基于在每波长基础上求解的完整辐射传递方程的公式，从而产生准确的模型和无偏算法，用于呈现高散射荧光参与介质。该模型考虑了荧光染料的固有性质，包括它们的吸收和发射光谱、摩尔吸收率和量子产率以及它们的浓度。该算法应用于不同光照条件下高散射各向同性荧光溶液的渲染。利用不同荧光染料的发射光谱对模型的光谱性能进行了验证。
We present a novel extension of the path tracing algorithm that is capable of treating highly scattering participating media in the presence of fluorescent structures. The extension is based on the formulation of the full radiative transfer equation when solved on a per-wavelength-basis, resulting in accurate model and unbiased algorithm for rendering highly scattering fluorescent participating media. The model accounts for the intrinsic properties of fluorescent dyes including their absorption and emission spectra, molar absorptivity and quantum yield and also their concentration. Our algorithm is applied to render highly scattering isotropic fluorescent solutions under different illumination conditions. The spectral performance of the model is validated against emission spectra of different fluorescent dyes that are of significance in spectroscopy.