<div dir="ltr"><div dir="ltr"><br>On Fri, 28 Sep 2018 at 14:48, Rowley, Marlin R <<a href="mailto:marlin.r.rowley@lmco.com">marlin.r.rowley@lmco.com</a>> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">LOL @ mis-reading my question. 😊<br></blockquote><div><br></div><div>My best excuses is speed reading and trying to do too many things at once :-)<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
How would you check the values of vertices? I just need to see the transformed values of a vertex.<br></blockquote><div><br></div><div>One way would be to use a draw callback attached to the program osg::Geometry that reports the current ModelView and Projection matrices and the list of vertices, at least then you could double check the input values.</div><div><br></div><div>Checking the vertices on GPU isn't don't something that is easy at runtime without changing the rendering quite extensively such as using Transfom_Feedback:</div><div><br></div><div>   <a href="https://www.khronos.org/opengl/wiki/Transform_Feedback">https://www.khronos.org/opengl/wiki/Transform_Feedback</a></div><div><br></div><div>The other possibility would be to see what tools are available on your OS/hardware/driver combination.<br></div><div> </div></div></div></div>