ha, thanks Robert, you've got it ! :) So I stop investigate in the OSG part, and will concentrate on windows API side...
cheers! Fred 2009/3/25 Robert Osfield <[email protected]>: > Hi Fred, > > Perhaps you are expecting too much from a graphics context. Is that you > just want the graphics context to cover a small part of your window and want > conventional 2D GUI in the rest of the window? I don't believe this is > possible without creating a subwindow just for the graphics context. > > Robert. > > > On Wed, Mar 25, 2009 at 3:28 PM, Frederic Marmond <[email protected]> > wrote: >> >> hum, the (black) color was not the problem in itself :) >> >> If I do this (update from my whole code): >> gc->setClearColor( osg::Vec4f(1.2f, 0.2f, 0.6f, 1.0f) ); >> gc->setClearMask( 0) ; >> >> camera->setClearColor( osg::Vec4f(0.2f, 0.2f, 1.6f, 1.0f) ); >> camera->setClearMask( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT ); >> (that's to say: don't clear anything on gc, and fill background with >> blue on camera), >> >> I have the camera successfully drawn at the right place, with blue >> background. This is what I want for that camera. >> BUT, the problem persists, i.e. all around the viewport, the whole >> window is painted in black. (maybe mick jagger is singing too loud ?). >> it is painted in pink if I enable the >> gc->setClearMask(GL_COLOR_BUFFER_BIT). >> >> I can't manage to make OSG only impact the camera viewport (my blue >> rectangle) and leave the window around unchanged... >> Did anyone achieve to display an osgViewer::Viewer at some small place >> in a window without overwrite window content around? >> >> Fred >> >> >> >> 2009/3/25 Robert Osfield <[email protected]>: >> > On Wed, Mar 25, 2009 at 3:03 PM, Frederic Marmond <[email protected]> >> > wrote: >> >> >> >> hum, it didn't work :( >> >> >> >> both >> >> // gc->setClearColor( osg::Vec4f(1.2f, 0.2f, 0.6f, 1.0f) ); >> >> // gc->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); >> >> and >> >> gc->setClearColor( osg::Vec4f(1.2f, 0.2f, 0.6f, 1.0f) ); >> >> gc->setClearMask( 0 ); >> >> >> >> do the same: instead of the shiny pink color, the window is filled with >> >> black >> >> >> >> any other suggestion ? >> > >> > Well you disable the clear colour in the camera's ClearMask so perhaps >> > this >> > is why it's just black. >> > >> > Robert. >> > >> > _______________________________________________ >> > 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 > > > _______________________________________________ > 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
