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In order to feed xsi shaders with physical material information, Tek2Shoot uses t2s file format to store different model parameters.
T2S files can store data for Lafortune model, IOR, etc. The goal is to be able to use real measurment data like Cornell university for BRDF to build preset files for our illumination shader.
Download the first pack  t2s_filepack01 25/07/2006,16:48 11.15 Kb. New packs coming soon....
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 T2S_Coating adds a thin reflective coat to your materials, creating nice iridescent effects.
Thin Coats may be responsible of interferences in the reflected light, and let appear color fluctuations depending on light incidence. Biological Iridescence can also be obtained by simulating mulitple layers, and calculating the ondulatory interference. These subtle effects can now be obtained in Mental Ray almost instantaneously.
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 T2S_Illumination is dedicated to CG artists looking for a single Illumination node to be used as a basic building block for a great variety of materials.
This shader brings together different illumination models, as well as some of the last Mental Ray functions for optimized glossy scattering. New features, such as Coating surface effects, custom Lafortune settings, or Fresnel Mask are proposed here.
You can check our gallery to download free presets, or also get new T2S Files for custom materials.
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The Lafortune representation is a BRDF model (as Phong, Blinn, etc...) fitted to experimental values. It allows to create realistic specular with color fluctuation depending on the viewing / lighting angles. The T2S_Lafortune shader includes this model, as well as Oren-Nayar and Wrap Lighting for the diffuse component.
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 This xsiaddon file is a wrapper containing several unexposed Mental Ray shaders for XSI. The interface has been improved according to the Mental Image documentation.
These shaders are included : Car Paint - Ambient and FG Occlusion - Glossy Reflection and glossy refraction - Physical Lights - D2S_Lights, which combines "physical_light", "mib_blackbody" and "mib_cie_d" in order to reproduce realistic illumination, and last MR versions of "DGS_Material", "Dielectric_Material", and Volumetric Shader "Participating Media"
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