We propose a method to accurately handle fluorescence in a non-spectral (\eg, tristimulus) rendering engine, showcasing color-shifting and increased luminance effects. Core to our method is a principled reduction technique that encodes the re-radiation into a low-dimensional matrix working in the space of the renderer's Color Matching Functions (CMFs). Our process is independent of a specific CMF set and allows for the addition of a non-visible ultraviolet band during light transport. Our representation visually matches full spectral light transport for measured fluorescent materials even for challenging illuminants.

翻译：我们提出了一种在非光谱（例如三刺激值）渲染引擎中精确处理荧光现象的方法，该方法能够展现色彩偏移与亮度增强效应。我们方法的核心是一种基于原理的降维技术，该技术将荧光重辐射过程编码为一个低维矩阵，该矩阵在渲染器的颜色匹配函数空间内工作。我们的流程独立于特定的颜色匹配函数集，并允许在光传输过程中加入非可见的紫外波段。即使对于具有挑战性的光源，我们的表示方法在视觉上也能够与实测荧光材料的全光谱光传输结果相匹配。