Grasshopper

algorithmic modeling for Rhino

Brett Ian Balogh
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SAIC / IIT
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Normal Flipping in Grasshopper

Hi Folks,



I've been having some problems with a valid closed polysurface that has all surface normals oriented correctly in Rhino (used the Direction command). However, when I work with it in Grasshopper, it appears that half of the surfaces are now flipped (normals now pointing to the inside of the polysurface). I've tried to use a guide surface, I tried offsetting points along the normal to test for inclusion and then flip. I've even tried to flip normals manually by mutliplying… Continue

Posted on November 23, 2009 at 10:30am

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