Thanks Robert, what if i want to draw lines on the ortho2d screen, things like a cross hatch pattern, and circles and stuff ? Would i have to drop to using opengl like
glBegin(GL_LINES); glColor3f(1.0, 0.0, 0.0); glVertex2f(10, 10); // first line glVertex2f(50, 50); glVertex2f(10,120); // second line glVertex2f(120,10); glEnd(); i cant see anything in OSG at a higher level that i could use ? I would prefer not to use opengl commands if i dont have to if OSG has any other options at all thanks Peter -----Original message----- From: "Robert Osfield" [EMAIL PROTECTED] Date: Mon, 21 Jan 2008 17:12:56 +0900 To: "OpenSceneGraph Users" [email protected] Subject: Re: [osg-users] loading a bitmap and displaying it > Hi Peter, > > You could use osg::DrawPixels drawable, but... its slow compared to > using a textured quad as modern hardware is all geared up for making > textures polygons really fast, glDrawPixels being left long behind. > So... my recommendation is to stick with the osghud style approach > using a single fullscreen textured quad. > > Robert. > > On Jan 21, 2008 7:13 AM, Peter DeSantis <[EMAIL PROTECTED]> wrote: > > > > > > Hello > > > > i want to load a bitmap image and display it in osg. > > > > I was planing to emulate the osgHUD example and load a bitmap, map it to a > > quadstrip as a texture and add it as a child to the root node, using a > > ortho2d matrix for the camera. is this the only way to display a full screen > > bitmap in OSG ? > > > > And is there a way i could draw to the screen instead of loading a bitmap ? > > > > > > Thanks > > > > Peter DeSantis > > [EMAIL PROTECTED] > > Jumbo Vision International Pty Ltd > > Unit 2 ,1 Aitken Way > > Kewdale WA 6105 > > Australia > > > > Tel: 61 8 9353 6200 > > Fax: 61 8 9353 6211 > > _______________________________________________ > > 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
