Visualization of optical phenomena caused by multilayer films based on wave optics

Hasegawa, Hideki; Kaneda, Kazufumi; Yamashita, Hideo; Yamaji, Yoshiki; Monden, Yoshimi

doi:10.1007/pl00013402

Cited by 23 publications

(11 citation statements)

References 20 publications

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“…This approach was later extended to handle subsurface refraction and multilayer interference effects [Schramm et al 1997]. Recently, Hirayama et al [2001] adopted a recursive method to simulate interference at multiple-layer films, and Icart and Arques [2000] used the Abeles matrix to simulate interference at multiple layers with rough interfaces.…”

Section: Spectral Renderingmentioning

confidence: 99%

Rendering biological iridescences with RGB-based renderers

Sun

2006

ACM Trans. Graph.

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Brilliant iridescent colors occur on many biological objects. Current RGB-based graphics renderers are not sufficient to simulate such phenomena. This is because biological iridescences are caused by interference or diffraction, which requires wavelength information to describe. In this article, we propose an iridescent shading process that allows to render biological iridescences with RGB-based renderers. The key ideas are to construct spectra from colors and to use a wavelength-dependent model to describe iridescences. A novel model for iridescent illumination due to multilayer interference is developed based on analytic calculation and numerical simulation, and is simplified for practical rendering. The iridescent shading process is implemented using RenderMan embedded in Maya. Iridescent Morpho butterflies and ground beetles are rendered as examples to test the proposed techniques.

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Section: Spectral Renderingmentioning

confidence: 99%

Rendering biological iridescences with RGB-based renderers

Sun

2006

ACM Trans. Graph.

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“…The other type of physically-based reflectance models is based on a multi-layer surface and they derive the reflectance from subsurface scattering in the layers [12]- [14]. Generally, subsurface scattering is expressed by 8D Bidirectional Scattering Surface Reflectance Distribution Function or BSSRDF [1], but it can be described by BRDF when the thickness of a layer is very small.…”

Section: Physically Based Reflectance Modelsmentioning

confidence: 99%

A Reflectance Model for Metallic Paints Using a Two-Layer Structure Surface with Microfacet Distributions

Kim

Lee

2010

IEICE Trans. Inf. & Syst.

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SUMMARYWe present a new method that can represent the reflectance of metallic paints accurately using a two-layer reflectance model with sampled microfacet distribution functions. We model the structure of metallic paints simplified by two layers: a binder surface that follows a microfacet distribution and a sub-layer that also follows a facet distribution. In the sub-layer, the diffuse and the specular reflectance represent color pigments and metallic flakes respectively. We use an iterative method based on the principle of Gauss-Seidel relaxation that stably fits the measured data to our highly non-linear model. We optimize the model by handling the microfacet distribution terms as a piecewise linear non-parametric form in order to increase its degree of freedom. The proposed model is validated by applying it to various metallic paints. The results show that our model has better fitting performance compared to the models used in other studies. Our model provides better accuracy due to the non-parametric terms employed in the model, and also gives efficiency in analyzing the characteristics of metallic paints by the analytical form embedded in the model. The non-parametric terms for the microfacet distribution in our model require densely measured data but not for the entire BRDF(bidirectional reflectance distribution function) domain, so that our method can reduce the burden of data acquisition during measurement. Especially, it becomes efficient for a system that uses a curved-sample based measurement system which allows us to obtain dense data in microfacet domain by a single measurement. key words: metallic paint, reflectance modeling, multi-layer surface, measure-and-fit, non-parametric basis function

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“…[SFD99A] proposed a simple method to render interferences on film‐coated transparent objects. On simulating interference phenomena of multilayer structures, Hirayama and collaborators [HKY*01] applied a recursive method, and Icart and Arques [IA00] used Abeles matrix with consideration of surface roughness. Recently, Sun [Sun06] proposed an iridescent shader to render biological iridescences.…”

Section: Related Workmentioning

confidence: 99%

Interference Shaders of Thin Films

Sun

Wang

2008

Computer Graphics Forum

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This paper presents a systematic study of light interferences at single thin films. Based on Fresnel's law, we have derived generic expressions of reflectance and transmittance for film interference, as well as specific expressions for free thin films and films coated on transparent or opaque objects. By combining film interference and volume absorption, we have obtained the reflectances and transmittances of film-coated thin objects such as ribbons. Illumination models for all interference cases of single thin films are presented, and they have been implemented and tested for various structures and materials.

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Visualization of optical phenomena caused by multilayer films based on wave optics

Cited by 23 publications

References 20 publications

Rendering biological iridescences with RGB-based renderers

Rendering biological iridescences with RGB-based renderers

A Reflectance Model for Metallic Paints Using a Two-Layer Structure Surface with Microfacet Distributions

Interference Shaders of Thin Films

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