Thanks a lot Gerrick! It just simply worked.
Best wishes and Happy new year /emre On Dec 29, 2007 8:04 PM, Gerrick Bivins <[EMAIL PROTECTED]> wrote: > You need to call setUseDisplayList(false) on your geometry/drawable class. > biv > > > > On Dec 29, 2007 7:33 AM, Emre Koc <[EMAIL PROTECTED] > wrote: > > Hi All, > > > > I just started to write a class that can draw curves on a osg. I added > > a openglwrapper class so that in the beginning I will try to work with > > GLU. My class has two main member functions > > first one is > > > > virtual void drawImplementation(osg::RenderInfo&) const > > > > which handles the draw step and outputs with direct opengl calls. > > > > and second one is > > > > void addControlPoint(GLfloat& x,GLfloat& y,GLfloat& z) > > > > which allowes the user to add more control points to the curve. > > > > And I attached a picker to call addControlPoints function when user > > double clicks on a plane, so that clicked coordinate becomes a new > > control point. > > > > Now the problem is: > > > > drawImplementation(osg::RenderInfo&) const is being called at the > > beginning of the program for once. But during the rendering time osg > > does not call that function ever again, even when I edit the control > > points array. I set Dynamic DataVariance for all geodes and drawables > > but It still calls drawImplementation once at the beginning. > > > > Any Idea how to solve this problem? I guess I need something to let my > > curve drawable being affected in Update traversal but I don't know how > > to do it. > > > > /emre > > > > > > > > > > On Dec 28, 2007 8:31 PM, Gerrick Bivins < [EMAIL PROTECTED]> wrote: > > > Hi Emre, > > > Our NURBS objects are defined by structures on disk(ie, read in a file > that > > > contains the control points and knot vectors) > > > and then the object is rendered. The selection part of our interface > allows > > > you to move those control points > > > around to modify the shape of the original surface. We don't have > support > > > for redefining the > > > NURBS object such as control point addition/subtraction, knot > > > insertion/removal. > > > biv > > > > > > > > > > > > On Dec 27, 2007 3:18 PM, Emre Koc < [EMAIL PROTECTED]> wrote: > > > > > > > > > > > > > > > > Hi Gerrick, > > > > > > > > > > > > > Previously in gl, we were able to just do selection by using > > > glRenderMode > > > > > when rendering the points > > > > > of the control mesh (another reason to use raw gl) and then > processing > > > > > the "hits". > > > > > > > > So you have some code to render NURB curves at runtime with the > > > > defined points which are picked by mouse clicks, is this right? > > > > If so, thats the exact thing that I would like to do in osg for the > time > > > being. > > > > And if your raw gl code does this, can you share the details on how > you do > > > that? > > > > > > > > > > > > > > > > > > > > /emre > > > > > > > > _______________________________________________ > > > > osg-users mailing list > > > > [email protected] > > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > > > > > > _______________________________________________ > > > osg-users mailing list > > > [email protected] > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > > > > > > > > > -- > > Emre Koc > > Sabanci University > > Faculty of Engineering and Natural Sciences > > > > > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > -- Emre Koc Sabanci University Faculty of Engineering and Natural Sciences _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
