https://community.graphisoft.com/t5/Visualization/A-very-slow-3D-rendering/m-p/53563#M18358 What version Archicad?<BR /> <BR /> You simply have too many polygons in the model. <BR /> Can you post an OpenGL screenshot of your project? Sun, 06 Aug 2006 15:27:15 GMT Dwight 2006-08-06T15:27:15Z https://community.graphisoft.com/t5/Visualization/A-very-slow-3D-rendering/m-p/53562#M18357 <DIV class="actalk-migrated-content"><T>Hello all!<BR /> <BR /> Please help me to speed-up rendering. My machine 1.8 Pentium-IV<BR /> <BR /> Rendering settings:<BR /> Internal 3D engine.<BR /> Analytic shading: on.<BR /> <BR /> Archicad literally hangs on a "Shading(analytic)" stage. Waiting 10-15 minutes for preview is very annoying me... Please help...</T></DIV> Thu, 11 May 2023 10:31:48 GMT https://community.graphisoft.com/t5/Visualization/A-very-slow-3D-rendering/m-p/53562#M18357 Anonymous 2023-05-11T10:31:48Z https://community.graphisoft.com/t5/Visualization/A-very-slow-3D-rendering/m-p/53563#M18358 What version Archicad?<BR /> <BR /> You simply have too many polygons in the model. <BR /> Can you post an OpenGL screenshot of your project? Sun, 06 Aug 2006 15:27:15 GMT https://community.graphisoft.com/t5/Visualization/A-very-slow-3D-rendering/m-p/53563#M18358 Dwight 2006-08-06T15:27:15Z https://community.graphisoft.com/t5/Visualization/A-very-slow-3D-rendering/m-p/53564#M18359 Internal engine + analytic shading = slowest 3D viewing.<BR /> <BR /> Use OpenGL if your machine can do it. Mon, 07 Aug 2006 02:00:30 GMT https://community.graphisoft.com/t5/Visualization/A-very-slow-3D-rendering/m-p/53564#M18359 Anonymous 2006-08-07T02:00:30Z