beeemtee Posted July 13, 2011 Share Posted July 13, 2011 Hi, is it possible to generate UV coordinates to a NURBS surface so that no stretches reflects the positions of knots? For example on a square grid a checker pattern remains "even" even some inside isoparms are slided? thanks in advance Mate Quote Link to comment Share on other sites More sharing options...
edward Posted July 14, 2011 Share Posted July 14, 2011 Not sure what you mean exactly but I've attached a file. nurbsUV.hipnc Quote Link to comment Share on other sites More sharing options...
beeemtee Posted July 14, 2011 Author Share Posted July 14, 2011 Sorry for the laxity, I have to redefine my question. Anyway your file did exactly what I was asking for What I would like to achieve is that the texture coordinates on the surface are placed stricktly proportionally to the length of the arc in world space. In the attached file the streches and squashes are apparent at the ends and close to some corners despite the UVs are generated with "arc lenght spline" setting. What do I miss here? thanks Mate nurbsUV_2.hipnc Quote Link to comment Share on other sites More sharing options...
edward Posted July 15, 2011 Share Posted July 15, 2011 I'm not sure. Perhaps it has to do with the NURBS geometry having limited information? The "Spline" options seem to have an effect nonetheless. eg. Average Spline is much better in your particular case. EDIT: Maybe UVTexture is missing "Approximate Arc Length" from the Basis SOP <shrugs> Quote Link to comment Share on other sites More sharing options...
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