OpenText ™ Exceed ™ 3D is an add-on to OpenText Exceed for rendering OpenGL-based 3D graphics applications over a remote connection. Exceed 3D enables users to access graphical 3D applications running on UNIX ®, Linux ®, or other X11 desktops from a Microsoft ® Windows ® PC. Exceed 3D 2008 is a Shareware software in the category Miscellaneous developed by Hummingbird Ltd. The latest version of Exceed 3D 2008 is currently unknown. Obrazec otvet na trebovanie nalogovoj o predostavlenii dokumentov.

Exceed 9 Issue 9a: (same as Issue 8a) Fix: • install hclshm.dll 9.0.0.1 (or later) xlib.dll 9.0.0.3 (or later) exceed.exe 9.0.0.9 (or later) exceed.exe can be patched via Hummingbird Update or by downloading the latest Exceed 9 service pack. Other patches available only via Hummingbird support web site (not available in any official Exceed releases or service packs) • Current releases of VGL work around this issue by detecting the version of hclshm.dll, xlib.dll, and exceed.exe and disabling MIT-SHM drawing (at the expense of performance) if those files have not been patched.

Exceed 10 Issue 10a: BadLength error in XPutImage() Symptoms: • FBX write tests (non-SHM) fail in FBXtest with repeated BadLength errors. This occurs regardless of whether FBXtest is run locally on the client or remotely from the server • VGLclient fails silently if the MIT-SHM extension is not enabled in Exceed Fix: None available Workarounds: • If using only the VGL Transport, then simply make sure that the MIT-SHM extension is enabled in Exceed. VGLclient only uses XPutImage() (and thus only encounters this bug) if MIT-SHM is not enabled • If using the X11 Transport, then it is necessary to enable 'Use 32 Bits Per Pixel For TrueColor' in the 'X Server Protocol' applet of XConfig. Note that this will decrease the performance of the VGL Transport significantly Potential Impact: High • If the user follows the procedure in the VGL docs, then the VGL Transport will work correctly and optimally (but the X11 Transport will not work) • If the user ignores the docs altogether and uses the default Exceed settings, then the VGL Transport will work correctly but slowly (and the X11 Transport will work) • If the user follows some of the procedure (for instance, disabling 32-bit pixels but failing to enable MIT-SHM), then both the X11 Transport and the VGL Transport may not work. Exceed 11 (Exceed 2006) Issue 11a: Xlib not fully thread safe Symptoms: • rrframeut deadlocks consistently, and the stack traces show that the deadlock is occurring because an Xlib call failed to return Fix: None available Workaround: None available Potential Impact: Minimal • This bug is not encountered when running the multi-threaded tests of rrfakerut using the VGL Transport with Exceed 2006 as a client. This suggests that, even under the most extreme circumstances, the bug will probably not be encountered when running VirtualGL.

Exceed 13 (Exceed 2008) Issue 13a: XShmAttach() generates BadAccess or BadValue errors Symptoms: • The SHM tests in FBXtest fail with repeated BadAccess errors • rrframeut fails with a BadValue error reported in opcode X_ShmAttach • VGLclient fails silently when the MIT-SHM extension is enabled in Exceed 2008 Fix: • install xlib.dll v13.0.1.235 (or later) or the latest Connectivity 2008 service pack. Workaround: • Disable the MIT-SHM extension in Exceed (this will significantly reduce the performance of the VGL Transport) Potential Impact: High • If the user follows the procedure in the VGL docs on an unpatched version of Exceed 2008, then the VGL Transport will not work • The only workaround has a severe impact on performance.