Shading technique based on a dielectric model of physics
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Three dielectric interfaces rendered using the shader.A very accurate render using the shader.
The Dielectric Physical Phenomenon Shader is a shader used by the LightWave and Mental Ray 3D rendering engines. It is based on a dielectric model of physics, which describes how electromagnetic fields behave inside materials. The dielectric shader is able to realistically render the behavior of light rays passing through materials with differing refractive indices, as well as attenuation of the ray as it passes through a material.
The shader uses Fresnel equations to simulate reflectance and transmittance of light passing through the dielectric interface, as well as using Snell's law to determine the angle of refraction. In addition Beer's law is used to determine absorption of rays passing through dielectric materials.
Two types of dielectric interfaces are supported:
dielectric-air between a dielectric material and air.
dielectric-dielectric between two dielectric materials.
The Dielectric Physical Phenomenon Shader is a shader used by the LightWave and Mental Ray 3D rendering engines. It is based on a dielectric model of physics...
consist of one or more shader trees (DAG). A phenomenon looks like regular shader to the user, and in fact may be a regular shader, but generally it will...
{1}{V}}\mathbf {p} \cdot {\hat {\mathbf {R} }}\,.} This linear dielectric example shows that the dielectric constant treatment is equivalent to the uniform dipole...
optional offset. nVidia's CgFX was also implemented, albeit via the legacy shader system. STL support was added to enable output suitable for 3D printers...
Mathematical descriptions of opacity. Dielectric loss and non-zero DC conductivity in materials cause absorption. Good dielectric materials such as glass have...
usually have several alternating layers of specific thickness, made of dielectric materials and sometimes metals. The metal layer can be made from titanium...
Classes: Class E (Electrical) provides dielectric protection up to 20,000 volts. Class G (General) provides dielectric protection up to 2,200 volts. Class...
on a number of roles, such as biomaterials and additives to microwave dielectric ceramics. Frit in the form of alumino-silicate can be used in glaze-free...
dielectric dissipation factor (tan d) and d.c. resistivity IEC 60250 Recommended methods for the determination of the permittivity and dielectric dissipation...
instead. This eliminates the reflections from the ends of the rod. External dielectric mirrors then are used to form the optical cavity. Curved mirrors are typically...
they typically show high diamagnetic susceptibilities and high lattice dielectric constants. The classic semimetallic elements are arsenic, antimony, bismuth...
When analyzing the response of materials to alternating electric fields (dielectric spectroscopy), in applications such as electrical impedance tomography...
Li, Dong; Duan, N.; Reisner, B. A.; Sleight, A. W. (1 May 2000). "High Dielectric Constant in ACu3Ti4O12 and ACu3Ti3FeO12 Phases". Journal of Solid State...
Anodizing is also used to prevent galling of threaded components and to make dielectric films for electrolytic capacitors. Anodic films are most commonly applied...
to engineering artificial chromatophores out of small devices known as dielectric elastomer actuators. Engineers at the University of Bristol have engineered...
l'da"), Academy of Sciences (USSR), DTIC AD0662716 Evans, S. (1965). "Dielectric Properties of Ice and Snow–a Review". Journal of Glaciology. 5 (42): 773–792...
gem-varieties of corundum, the other being ruby (defined as corundum in a shade of red). Although blue is the best-known sapphire color, they occur in other...
vacuum, a fluid (e.g. air), or any non-conducting or weakly conducting dielectric. The field-induced promotion of electrons from the valence to conduction...
328. Kaye & Laby Tables, Refractive index of gases. Kaye & Laby Tables, Dielectric Properties of Materials. Huheey, James E.; Keiter, Ellen A.; Keiter, Richard...
quartz that ranges from a bright vivid violet to a dark or dull lavender shade. The world's largest deposits of amethysts can be found in Brazil, Mexico...
A simple parallel-plate capacitor has two conductors separated by a dielectric layer. Most of the energy in this system is concentrated directly between...
damaging to the intracavity medium if brought to a focus. A transparent dielectric sphere, such as a liquid droplet, also forms an interesting optical cavity...
separated from a superconductive ground plane by about 2 micrometers of SiO2 dielectric. Symmetry in the splitting network ensures that the same power is delivered...
mechanical coupling. For electrical zone valves, the motor is often a small shaded-pole synchronous motor combined with a rotary switch that can disconnect...
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