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- How to Add Coating and Scattering Functions to Non-Sequential Objects
How to Add Coating and Scattering Functions to Non-Sequential Objects
- By Mark Nicholson
- Published 3 April 2006
- CAD Exchange , Polarization and Thin Film Coatings , Thin Film Coatings
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Summary
In summary:
- CAD objects can be made of many hundreds of CAD surfaces (sections of planes, spheres, splines etc) and it is not in general feasible to apply coating and scattering functions to individual CAD surfaces
- We use the concept of a "face" to organize the CAD surfaces into meaningful surface regions
- A point-and-click interface makes it easy to select CAD segments and allocate them to faces
- Polygonal objects (*.pob) include the face definition as part of the defining data file
- Thin-film coatings and scattering functions are then applied to the defined faces
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2 Responses to "How to Add Coating and Scattering Functions to Non-Sequential Objects" 
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said this on 29 Jan 2007 7:59:11 AM PDT
Thanks for the article. It would be nice if there was a zipped file, sot the reader can try to use a STL or STEP or IGES file.
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said this on 04 May 2007 8:25:28 AM PDT
This was good. When using ideal coatings with less than perfect reflection you must turn on split rays for it to work in your ray trace control.
{Editor's Note: That's not quite right. You need to set 'Use Polarization', which is automatically turned on when splitting is selected.}
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