https://community.graphisoft.com/t5/Visualization/IES-Lights-bug/m-p/262040#M3493 I made a comparison with some spot light object.<BR /> What I noted is that the light intesity is correctly rendered with spot light while ies light are rendered in the same way despite different light intesity.<BR /> <BR /> I think there's something wrong in the IES light object.<BR /><IMG src="https://community.graphisoft.com/t5/image/serverpage/image-id/11351i52E6247B1F0375F0/image-size/large?v=v2&amp;px=999" border="0" alt="Cattura 12.png" title="Cattura 12.png" /> Sun, 28 Jan 2018 18:57:34 GMT alemanda 2018-01-28T18:57:34Z https://community.graphisoft.com/t5/Visualization/IES-Lights-bug/m-p/262039#M3492 <DIV class="actalk-migrated-content"><T>Hi,<BR /> I'm struggling with IES lights. I think there's a bug in the IES light library part or in the cinerender engine.<BR /> I set my scene with different ies lights but what I note is that different photometries are rendered with the same power. Light distribution is correct but 70W or 2W - for example - are rendered with the same light intesity intensity.<BR /> <BR /> Did anybody encounter this problem?<BR /> Is it a bug? Is there some magic setting for Archicad to process the image correctly?</T></DIV><BR /><span class="lia-inline-image-display-wrapper" image-alt="Cattura 11.png" style="width: 800px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/8358i709CDE71FCAF4734/image-size/large?v=v2&amp;px=999" role="button" title="Cattura 11.png" alt="Cattura 11.png" /></span> Thu, 11 May 2023 09:38:16 GMT https://community.graphisoft.com/t5/Visualization/IES-Lights-bug/m-p/262039#M3492 alemanda 2023-05-11T09:38:16Z https://community.graphisoft.com/t5/Visualization/IES-Lights-bug/m-p/262040#M3493 I made a comparison with some spot light object.<BR /> What I noted is that the light intesity is correctly rendered with spot light while ies light are rendered in the same way despite different light intesity.<BR /> <BR /> I think there's something wrong in the IES light object.<BR /><IMG src="https://community.graphisoft.com/t5/image/serverpage/image-id/11351i52E6247B1F0375F0/image-size/large?v=v2&amp;px=999" border="0" alt="Cattura 12.png" title="Cattura 12.png" /> Sun, 28 Jan 2018 18:57:34 GMT https://community.graphisoft.com/t5/Visualization/IES-Lights-bug/m-p/262040#M3493 alemanda 2018-01-28T18:57:34Z https://community.graphisoft.com/t5/Visualization/IES-Lights-bug/m-p/262041#M3494 Ies lights are set with "use photometry data" and light intesity to 100%. Sun, 28 Jan 2018 19:05:43 GMT https://community.graphisoft.com/t5/Visualization/IES-Lights-bug/m-p/262041#M3494 alemanda 2018-01-28T19:05:43Z