HI Mat, On 1 June 2017 at 16:42, Mat Monk <[email protected]> wrote: > As you said, I created a static box. But i dont understand the shaders > function in the example osgshaders.
I guess you must be learning OpenGL/OpenGL Shaders as well as OSG then. > I found a example of a rotating quad and modified it, so it includes my box > instead the quad. But finally i couldn't change the rotation to changing the > dimensions in x-direction for examples. Using callbacks to update the vertices is one possible solution, but the most heavy-wieght in terms of CPU cost. If you want to modify the vertices of the geoemtry using a callback then you've done most of the required steps. The only thing missing is that you have to iterate over all the vertices in the Vec3Array. Vec3Array is std::vector<osg::Vec3> under the hood so knowledge of Standard C++ should help here. Also look at the include/osg/Vec3f class to see what maths methods are available. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
