Francis Vega Posted April 16, 2011 Share Posted April 16, 2011 (edited) Hi all! I'm working on a kind of "arrows system", the system must stick the arrows into a deforming geometry. Im working with normals, calculating dihedrals to "follow" the primitive deformations and settings the particles (arrows) normal. It works (i think so), but not always. Here two videos showing the behaviour, in the first video the system seems to work, but in the second the box turn around and doesn't work :S Seems work Not working (mad cube! ) Here the hip file http://dl.dropbox.com/u/787784/arrowSystem_wip1.hipnc Thanxs!! Edited April 16, 2011 by Francis Vega Quote Link to comment Share on other sites More sharing options...
tony Posted April 16, 2011 Share Posted April 16, 2011 I think you've forgotten to post the hip file. Cheers Tony Quote Link to comment Share on other sites More sharing options...
Guest Swann Posted April 16, 2011 Share Posted April 16, 2011 (edited) Hm, thats strange because on my browser it's there. EDIT: "Hm" once again because Francis just broke my joke. I just couldn't resist guys . Edited April 16, 2011 by SWANN Quote Link to comment Share on other sites More sharing options...
Francis Vega Posted April 16, 2011 Author Share Posted April 16, 2011 Hi! I add a link with hip file! thnx! Quote Link to comment Share on other sites More sharing options...
cosku Posted April 17, 2011 Share Posted April 17, 2011 Hey, If you supply the Copy SOP with both "N" and "up", you'll get more accurate rotations on your copies as you're trying to achieve. Check out this post for detailed information: http://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=6679&highlight=orient I attached a modified file which uses the Surface Normal along with the Surface Tangent to orient the box. Cheers, arrowSystem_wip.cosku.1.hipnc Quote Link to comment Share on other sites More sharing options...
Francis Vega Posted April 18, 2011 Author Share Posted April 18, 2011 Thanks so much cosku! I'm gonna study you hip file I think I'll get the upvector by a different way, I want the arrow stick on geo surface with the same direction before colliding. Thansk again! Quote Link to comment Share on other sites More sharing options...
beautyblack Posted May 11, 2011 Share Posted May 11, 2011 it's good.thank you very much. Quote Link to comment Share on other sites More sharing options...
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