{"id":373076,"date":"2024-07-22T16:55:28","date_gmt":"2024-07-22T16:55:28","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/"},"modified":"2024-07-22T16:55:28","modified_gmt":"2024-07-22T16:55:28","slug":"373076","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/","title":{"rendered":"Reply To: Some problems in the case base(&#8220;Diffuse Scattering Film for Automotive Display&#8221;)"},"content":{"rendered":"<p>&lt;p&gt;Hi Jie Li, thanks for posting your question. In this workflow, the BSDF is calculated using grating projection. The number of grating orders will depend on the width of the simulation region. In our <a href=\"https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360042213854-Bidirectional-scattering-distribution-function-BSDF\" target=\"_blank\" rel=\"noopener\">initial example<\/a>, this width was used to control the &#8220;resolution&#8221; of the BSDF.&lt;\/p&gt;&lt;p&gt;For the export to Speos, the BSDF is calculated on a fixed grid. To do so, we map each grating order with a Gaussian beam of fixed width (beam_width). &#8220;beam_norm&#8221; is used as a normalisation factor to make sure power is conserved in the process.&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-373076","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi Jie Li, thanks for posting your question. In this workflow, the BSDF is calculated using grating projection. The number of grating orders will depend on the width of the simulation region. In our initial example, this width was used to control the &quot;resolution&quot; of the BSDF.For the export to Speos, the BSDF is calculated\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Reply To: Some problems in the case base(\u201cDiffuse Scattering Film for Automotive Display\u201d) | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hi Jie Li, thanks for posting your question. In this workflow, the BSDF is calculated using grating projection. The number of grating orders will depend on the width of the simulation region. In our initial example, this width was used to control the &quot;resolution&quot; of the BSDF.For the export to Speos, the BSDF is calculated\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-07-22T16:55:28+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-07-22T16:55:28+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Some problems in the case base(\u201cDiffuse Scattering Film for Automotive Display\u201d) | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Hi Jie Li, thanks for posting your question. In this workflow, the BSDF is calculated using grating projection. The number of grating orders will depend on the width of the simulation region. In our initial example, this width was used to control the &quot;resolution&quot; of the BSDF.For the export to Speos, the BSDF is calculated\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/373076\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/373076\\\/#listItem\",\"name\":\"Reply To: Some problems in the case base(&#8220;Diffuse Scattering Film for Automotive Display&#8221;)\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/373076\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Some problems in the case base(&#8220;Diffuse Scattering Film for Automotive Display&#8221;)\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/373076\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/373076\\\/\",\"name\":\"Reply To: Some problems in the case base(\\u201cDiffuse Scattering Film for Automotive Display\\u201d) | Ansys Learning Forum\",\"description\":\"Hi Jie Li, thanks for posting your question. In this workflow, the BSDF is calculated using grating projection. The number of grating orders will depend on the width of the simulation region. 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In this workflow, the BSDF is calculated using grating projection. The number of grating orders will depend on the width of the simulation region. In our initial example, this width was used to control the \"resolution\" of the BSDF.For the export to Speos, the BSDF is calculated","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/#listItem","name":"Reply To: Some problems in the case base(&#8220;Diffuse Scattering Film for Automotive Display&#8221;)"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/#listItem","position":2,"name":"Reply To: Some problems in the case base(&#8220;Diffuse Scattering Film for Automotive Display&#8221;)","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/","name":"Reply To: Some problems in the case base(\u201cDiffuse Scattering Film for Automotive Display\u201d) | Ansys Learning Forum","description":"Hi Jie Li, thanks for posting your question. In this workflow, the BSDF is calculated using grating projection. The number of grating orders will depend on the width of the simulation region. In our initial example, this width was used to control the \"resolution\" of the BSDF.For the export to Speos, the BSDF is calculated","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/#breadcrumblist"},"datePublished":"2024-07-22T16:55:28+00:00","dateModified":"2024-07-22T16:55:28+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Reply To: Some problems in the case base(\u201cDiffuse Scattering Film for Automotive Display\u201d) | Ansys Learning Forum","og:description":"Hi Jie Li, thanks for posting your question. In this workflow, the BSDF is calculated using grating projection. The number of grating orders will depend on the width of the simulation region. In our initial example, this width was used to control the &quot;resolution&quot; of the BSDF.For the export to Speos, the BSDF is calculated","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/373076\/","article:published_time":"2024-07-22T16:55:28+00:00","article:modified_time":"2024-07-22T16:55:28+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Some problems in the case base(\u201cDiffuse Scattering Film for Automotive Display\u201d) | Ansys Learning Forum","twitter:description":"Hi Jie Li, thanks for posting your question. In this workflow, the BSDF is calculated using grating projection. The number of grating orders will depend on the width of the simulation region. 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