https://forums.autodesk.com/t5/revit-api-forum/revit-mo-xing-xuan-ran-liu-cheng/m-p/9125326#M38872 <P>我尝试把revit模型的顶点、索引、面的法线、轮廓线等数据提取出来在opengl中重绘模型，出现如下问题</P><P>1.轮廓线效果很差</P><P>2.平行光分辨不出顶面和测面</P><P>我想了解Revit的模型渲染流程<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="1.png" style="width: 999px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/694316iA09D7B61B41BE68F/image-size/large?v=v2&amp;px=999" role="button" title="1.png" alt="1.png" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="2.png" style="width: 910px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/694317i5343A785525AF756/image-size/large?v=v2&amp;px=999" role="button" title="2.png" alt="2.png" /></span></P> Mon, 04 Nov 2019 11:21:29 GMT ytsysjy 2019-11-04T11:21:29Z https://forums.autodesk.com/t5/revit-api-forum/revit-mo-xing-xuan-ran-liu-cheng/m-p/9125326#M38872 <P>我尝试把revit模型的顶点、索引、面的法线、轮廓线等数据提取出来在opengl中重绘模型，出现如下问题</P><P>1.轮廓线效果很差</P><P>2.平行光分辨不出顶面和测面</P><P>我想了解Revit的模型渲染流程<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="1.png" style="width: 999px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/694316iA09D7B61B41BE68F/image-size/large?v=v2&amp;px=999" role="button" title="1.png" alt="1.png" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="2.png" style="width: 910px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/694317i5343A785525AF756/image-size/large?v=v2&amp;px=999" role="button" title="2.png" alt="2.png" /></span></P> Mon, 04 Nov 2019 11:21:29 GMT https://forums.autodesk.com/t5/revit-api-forum/revit-mo-xing-xuan-ran-liu-cheng/m-p/9125326#M38872 ytsysjy 2019-11-04T11:21:29Z https://forums.autodesk.com/t5/revit-api-forum/revit-mo-xing-xuan-ran-liu-cheng/m-p/9125502#M38873 <P>Question:</P> <P>&nbsp;</P> <P>Revit model rendering process</P> <P>&nbsp;</P> <P>I tried to extract the vertices, indexes, normals, contours, etc. of the Revit model and redraw the model in OpenGL.</P> <P>&nbsp;</P> <P>The following problems occurred.</P> <P>&nbsp;</P> <OL> <LI>The contour is very poor</LI> <LI>Parallel light cannot distinguish the top surface and the measuring surface</LI> </OL> <P>&nbsp;</P> <P>I want to understand Revit's model rendering process.</P> <P>&nbsp;</P> <P>Answer:&nbsp;</P> <P>&nbsp;</P> <P>The easiest way to retrieve the Revit model data for rendering is to use a custom exporter:</P> <P>&nbsp;</P> <P>Here are some related discussions and examples:</P> <P>&nbsp;</P> <P><A href="https://thebuildingcoder.typepad.com/blog/about-the-author.html#5.1" target="_blank">https://thebuildingcoder.typepad.com/blog/about-the-author.html#5.1</A></P> <P>&nbsp;</P> Mon, 04 Nov 2019 13:00:20 GMT https://forums.autodesk.com/t5/revit-api-forum/revit-mo-xing-xuan-ran-liu-cheng/m-p/9125502#M38873 jeremytammik 2019-11-04T13:00:20Z