On 9/25/12 9:16 AM, James Wettenhall wrote: > BTW, the reason why we sometimes use TigerVNC server instead of TurboVNC > server is that some of our (virtual) servers don't have GPUs, but we still > want to be able to test some OpenGL software on them. For these servers > without GPUs, we have found it easier to get the OpenGL software up and > running with TigerVNC server than with TurboVNC server / VirtualGL. But for > servers which do have GPUs, we want to be able to make use of hardware > acceleration, so we use TurboVNC viewer (on the client side) and TurboVNC > server. Does that sound reasonable? Or do you think that with a bit of > practice, it should be easy to get OpenGL stuff (e.g. glxgears and > glxspheres) up and running quickly (but without hardware acceleration) using > TurboVNC server, instead of TigerVNC server on our GPU-less virtual servers? > That way we could use the same VNC server software on all of our physical and > virtual servers.
Yes. If you are using a recent Linux distro, download the latest Mesa source (ftp://ftp.freedesktop.org/pub/mesa/) and build it using: configure --enable-xlib-glx --disable-dri --without-gallium-drivers make Then you can simply add {full_path_of}/Mesa-8.0.4/lib to your LD_LIBRARY_PATH environment variable to cause OpenGL applications to prefer your custom build of Mesa. What you've done above is build a version of Mesa that doesn't require an X server. It renders all of the OpenGL in-process and just spits out plain Xlib calls. I found that on an older distro (CentOS 5.x), I had to use Mesa 7.5.2 and build it with: configure --with-driver=xlib make but it worked the same way as 8.0.4. It wouldn't be all that difficult to put a software GLX extension in TurboVNC, but one reason I don't is that I specifically want 3D not to work, so it's obvious when VirtualGL is working. Otherwise, if a user forgets to type vglrun, then their application is suddenly slow, and no one can figure out why. The other reason is just that OpenGL changes more quickly than the other APIs we depend on, and it would be a pain to keep abreast of those changes. ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users
