So I'm pretty close to getting this working using the osghud example code.
The problem I'm having now is that color grid on the left side of the screen is not visible at the start of the application. I traced this problem down to the fact that during creation the window size is larger than what the initial displayed window size is. So if I manually make the window larger then the color grid is visible. I fixed this problem by adding my own ResizedCallback to the GraphicsContext the hud camera is using. The ResizedCallback then updates the ProjectionMatrix to the dimensions of the new window size. This seems to work fine for anything that is aligned with the left side of the screen. I'm now working on adding another object to the hud in the upper right hand corner of the screen. To do this I create the my object and then apply a PositionAttitudeTransform matrix to the root node of my new object. The positional vector is based on: x = width of window minus width of new object, y = height of window minus height of new object. The result is that initially the object is not viewable until I manually resize the window with the mouse to make the viewing area larger. I'm thinking that I'm running into pretty much the same problem I had before I added the ResizedCallback, which is that the window size at creation time is larger than that at display time. So I'm basically placing the image beyond the viewable area initially. It seems I could solve this problem by updating the PositionAttitudeTransform matrix in my ResizedCallback to take into account the new window width and height. However, that seems like it is going to get really tedious as more and more things are added to the hud and is not the correct approach I should be using. Can anyone recommend any alternative approaches to this problem? Thanks ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=42692#42692 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
