{"id":396291,"date":"2024-12-04T16:17:38","date_gmt":"2024-12-04T16:17:38","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-make-non-basic-3d-shapes-in-lumerical\/"},"modified":"2024-12-05T12:05:15","modified_gmt":"2024-12-05T12:05:15","slug":"how-to-make-non-basic-3d-shapes-in-lumerical","status":"answered","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/how-to-make-non-basic-3d-shapes-in-lumerical\/","title":{"rendered":"How to make non-basic 3D shapes in Lumerical"},"content":{"rendered":"<p>&lt;p&gt;&lt;p&gt;&lt;p&gt;Does anyone have any information on how to make 3D shapes in Lumerical that are more complex than just rectangles or circles? The &#8216;reference&#8217; manual as usual has a description of each menu item but does not describe how they can be used to build or define a structure\/feature (https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360033154434-FDTD-product-reference-manual).&lt;\/p&gt;&lt;p&gt;For example, I have a simple cross-shaped metastructure I would like to model, as per the screenshot below. In the screenshot, I have modelled it by using two intersecting\/overlapping rectangles. Is this an acceptable way of modelling it, or will Lumerical &#8216;double-count&#8217;\/experience issues with the material in the overlap region? &lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/12\/04-12-2024-1733329042-mceclip0.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Thanks for your help&lt;\/p&gt;&lt;\/p&gt;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-396291","topic","type-topic","status-answered","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Does anyone have any information on how to make 3D shapes in Lumerical that are more complex than just rectangles or circles? 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