All-frequency interactive relighting of translucent objects with single and multiple scattering

Wang, Rui; Tran, John; Luebke, David

doi:10.1145/1186822.1073333

Cited by 21 publications

(24 citation statements)

References 23 publications

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“…Precomputation and empirical models: Precomputation-based rendering methods such as [Sloan et al 2002;Wang et al 2005;Nguyen and Donnelly 2005;Ogaki et al 2010;Ren et al 2013] work by solving a subset of the problem in advance. These methods are usually very efficient.…”

Section: Multiple Scattering Inside Hair Volumementioning

confidence: 99%

Physically-accurate fur reflectance

et al. 2015

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Figure 1: A rendering of the Wolf scene under environment lighting using (left) our physically-based double cylinder fur reflectance model with parameters from our database of animal fur samples, and (right) energy conserving Marschner model [Marschner et al. 2003; d'Eon et al. 2011] with best-fit parameters. Insets showing detailed comparisons from top to bottom using our model, Marschner model and Kajiya-Kay model. Since the Marschner model consists of only specular lobes, it often produces dark regions (limbs and tail). Furthermore, since the T T lobe is extremely strong in the Marschner model, especially for light colored fur fibers, it completely fails in heterogeneous regions (head) where dark colored fur is covered by light colored fur. The Kajiya-Kay model produces empirically plausible but hard-and-solid appearance, and it doesn't fit the measured reflectance data in Sec. 6.

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Section: Multiple Scattering Inside Hair Volumementioning

confidence: 99%

Physically-accurate fur reflectance

et al. 2015

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“…Several works [HBV03, MKB * 03b, HV04, MKB * 03a, DS03] describe GPU algorithms for interactive, subsurface scattering, but the limitations of graphics hardware fundamentally restrict lighting to a few point sources. Precomputed radiance transfer (PRT) [SKS02] techniques can be used to relight translucent objects under complex, global illumination at interactive rates [WTL05,SLS05]; however, they rely on expensive pre-computation using other methods discussed above.…”

Section: Diffusion Approximationmentioning

confidence: 99%

Single‐pass Scalable Subsurface Rendering with Lightcuts

Arbree

Walter

Bala

2008

Computer Graphics Forum

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This paper presents a new, scalable, single pass algorithm for computing subsurface scattering using the diffusion approximation. Instead of pre-computing a globally conservative estimate of the surface irradiance like previous two pass methods, the algorithm simultaneously refines hierarchical and adaptive estimates of both the surface irradiance and the subsurface transport. By using an adaptive, top-down refinement method, the algorithm directs computational effort only to simulating those eye-surface-light paths that make significant contributions to the final image. Because the algorithm is driven by image importance, it scales more efficiently than previous methods that have a linear dependence on translucent surface area. We demonstrate that in scenes with many translucent objects and in complex lighting environments, our new algorithm has a significant performance advantage.

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“…Through precomputation and hardware acceleration, the system provides real-time, high-quality rendering of both multiple and single scattering effects with dynamically changing BSSRDF parameters. [WTL05]. While the former uses a non-physically based approximation (a glossy BRDF) to the single scattering components in the BSSRDF model, the latter considers the complete model with both multiple and single scattering components and decomposes the phase function into view-and light-independent parts in order to achieve viewdependent single scattering effects.…”

Section: Contributionsmentioning

confidence: 99%