Hi Seems like you are messing with opengl state, and osg dont know about it. You should either: a) when you draw something with pure gl - after you finished, return all state you modified to values being before you started drawing b) use osg::State interface members to let osg know what state you are changed, or use osg wrappers in osg::State to make this state changes. c) call osg::State's dirty*() methods (like dirtyAllModes() and dirtyAllAttributes()) for state you've changed, after you finished with pure gl, but i dont recommend using this.
Cheers. 08.10.2012, 12:14, "wang shuiying" <[email protected]>: > Is nobody interested in this question?:-( > > Hello, > > I have two drawable nodes A and B under the same main group node. I > mapped two different textures on the drawables respectively. Those two > drawables do not have any overlappings in terms of pixels on the screen. > Drawable A is described using open scene graph library while drawable B > is described using openGL terms. Depth test is disabled by Drawable A > and enabled by drawable B. Texture display on A uses a shader while B > does not. > > When the renderbin of drawable A is set to be -1 and that of drawable B > is 1, the two textures cannot show at the same time. That is to say, > when I toggle on both drawable A and drawable B and make them both seen > on the screen, the texture on drawable B doesn't show, but the color of > B is correct. Under such circumstance, when I manipulate the view in a > way such that drawable A is out of sight, then the texture on drawable B > will appear. > > If I reverse the renderbins of those two drawables, then the textures > can show at the same time. > > I just cannot figure out why this happens. > > If it is due to depth test, why should such conflicts happen, since > they have no overlapped pixels on the screen? Even it is due to depth > test, why is the color correct? > > Would someone please be so kind enough as to explain that to me? > > Thanks millions in advance! > > Best regards > Shuiying > > _______________________________________________ > 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
