Hi Sergey, really thanks for your help. hybr wrote: > Hi, > > Basically what you need to do is translate rod to (0,0,0), apply rotation > that u need, and translate back to original position. > If your math is right and you still haven't expected results i'd say that > your model has static transforms removed and translated to vertices coords, > so center of your rod in local coords is not gonna be (0,0,0), and hence you > will get wrong results with rotations, since your math assume that center of > your rod in local coords is (0,0,0) to do proper rotation. > You can try use like model bbox or bounding sphere center in local model > coords and transform model to that coords instead of (0,0,0) before rotation > or re-export your model without flatten static transforms optimization. >
I checked more times my math operations on matrix and seem to be right. I also checked the center of table, and center of each rod and you got reason: the model has static transforms removed and translated to vertices coords. I downloaded this model from Google Sketchup, it was done in Sketchup and then converted in .3ds. Now the issue is this: i don't have much experience in 3dsmax, so i tryed to set manually a pivot for each rod but this doesn't help. can you tell me how to fix my model as you suggested? Alternatively, can you post here a link to a useful hot-to ? I'm really in crisis, I have already lost a lot of time to fix these issues -_-' Thanks a lot, Axel ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35653#35653 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
