Hi, On Tue, Dec 17, 2019 at 3:29 PM Anders Backman <ande...@cs.umu.se> wrote: > > Hi all. > Using OSG 3.6.4, Windows 10. > > Not sure what the current state of the world regarding Remote Desktop and > OpenGL is. > Perhaps someone can share some light onto this. > > If I run an application that use shaders over remote desktop from one windows > machine to another I get: > > c:\build\VS2017\x64\osg\bin>osgsimpleshaders.exe > Windows Error #127: [Screen #0] ChooseMatchingPixelFormat() - > wglChoosePixelFormatARB extension not found, trying GDI. Reason: The > specified procedure could not be found. > > Rendering in software: pixelFormatIndex 3
It looks like remote desktop can only do software rendering and a limited subset of OpenGL is supported there. > Warning: detected OpenGL error 'invalid enumerant' at Before Renderer::compile > > > crash. > > This does not happen when using fixed functionality only, for example running > osgviewer with some standard obj-model works just fine. > However, as soon as a shader is requested, OSG crashes: > > _glShaderHandle = _extensions->glCreateShader( shader->getType() ); > > Exception thrown at 0x0000000000000000 in agxViewer.exe: 0xC0000005: Access > violation executing location 0x0000000000000000. > > > 0000000000000000() Unknown > > osg160-osg.dll!osg::Shader::PerContextShader::PerContextShader(const > > osg::Shader * shader, unsigned int contextID) Line 533 C++ > osg160-osg.dll!osg::Shader::ShaderObjects::createPerContextShader(const > std::basic_string<char,std::char_traits<char>,std::allocator<char> > & > defineStr) Line 426 C++ > osg160-osg.dll!osg::Shader::getPCS(osg::State & state) Line 470 C++ > > Anyone with more info on this? I think that's described in: https://social.technet.microsoft.com/Forums/windowsserver/en-US/c8295ef8-3711-4576-9293-2c4965280165/opengl-and-remote-desktop?forum=winserverTS which includes a workaround which may, or may not be suitable to your use-case. François > Is there any way around this? > > -- > __________________________________________ > Anders Backman, HPC2N > 90187 Umeå University, Sweden > and...@cs.umu.se http://www.hpc2n.umu.se > Cell: +46-70-392 64 67 > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
