On 30-May-07, at 1:59 AM, Jeff Ervin wrote: > Some opengl functions are normally only called once or only when the > window is resized. However, in factor opengl functions only seem to > work > inside draw-gadget* so, for instance, commands to set the background > color and the projection matrix are executed every time a new frame is > drawn. Is it possible to call these functions only once from somewhere > outside draw-gadget*?
Since draw-gadget* renders to a part of an existing context, normally it should not take over the entire GL context and change the projection matrix, etc. This way the gadget will behave well when in a layout with other gadgets. If you display your gadget in its own top level window, you can do anything to the GL state. The graft* and ungraft* generic words will be useful to implement here. Also take a look at libs/canvas, you can either use it directly, or just use its find-gl-context word to configure the GL context in your graft* method. Slava ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Factor-talk mailing list Factor-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/factor-talk
