Hello Jan, I am sorry, seems like I played around with the file too much before submitting - "colorPerVertex" is supposed to be set to false.
I have had mixed results with different svn tags and am still trying to narrow it down. I can say that the problem never occurs if the attached patch is applied, wherein I substitute the color array's osg::Vec3 by a osg::Vec4 with an explicit alpha value of 1.0 and do not set the color indices to the vertex indices if no explicit color indices are given. If either of these changes is omitted, I get color bindings as if they were set per vertex. At the moment I am trying with the 3.1.1 svn tag. Do these changes suggest any problem at another part of osg or even my system to anyone? I tried with Debian 6.0.4 stable (Mesa OpenGL implementation) and MacOSX 10.7.3 on a MacBook Pro. I will try to compile osg 3.1.1 with a "fresh" debian installation during the weekend and report back. Best regards Stefan
IndexedFaceSet.cpp.patch
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On 5 Apr, 2012, at 6:32 PM, Jan Ciger wrote: > Hi, > > On Tue, Mar 27, 2012 at 10:14 AM, Stefan Radomski <[email protected]> wrote: > Hi, > > it seems that there is a bug in the vrml plugin or possible the color binding > handling of osg. When colorPerVertex is set to false, the scene nevertheless > appears as if colors were bound per vertex. Though I verified that > BIND_PER_PRIMITIVE is used for color binding in IndexedFaceSet.cpp:220. > > I attached a minimal example with two cubes, a blue one behind a green one. > FreeWRL will render this correctly, osgviewer renders it as if colorPerVertex > was set to TRUE. > > From what I can see, the file *does* have colorPerVertex set to TRUE. > > Jan > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
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