Hi Martin, We have managed to reproduce the issue on our end.
It seems that the issue is only reproducible when opening and unloading is done via scripting. XSI does not crash when the steps are done manually. I have logged an issue with development and they are looking into it. Thanks a lot for reporting the issue. Regards, Seng-Siong Lim SQA Engineer Autodesk (Asia) Pte Ltd [Description: Adsk_logo_4_sig_v03_crop.gif] From: [email protected] [mailto:[email protected]] On Behalf Of Chris Chia Sent: Wednesday, August 15, 2012 8:40 AM To: <[email protected]> Subject: Re: [BUG] Softimage crashing on workgroup unload containing a custom renderer and at least on .xsirtcompound file Hi Martin, We seem to have some customers complaining about XSI crashes with Arnold plugin. I am not too sure whether this is the cause. Thanks for the repro steps! I will take a quick look! Which specific version Arnold and 3delight are you using? And since you felt that it might be because they were in your workgroup and unloading them causes crashes, have you brought them out of the workgroup and tried whether it still crashes? Chris On 15 Aug, 2012, at 12:05 AM, "Martin Chatterjee" <[email protected]<mailto:[email protected]>> wrote: Hi list, hi Support, as many other studios we've been suffering from fairly regular crashes when trying to switch workgroups containing custom renderers in an open softimage UI session. I've made several attempts to work around this issue in the past with mixed results. However this time I've been in a particularly stubborn mood and I think I've finally isolated the bugger! (Repro steps further down in this mail) Cheers, Martin --- Description --- Softimage UI will crash reliably on workgroup unload when this workgroup contains a custom renderer and at least on .xsirtcompound file --- Background Details --- When switching between jobs we are dynamically unloading the old job workgroup and then loading the new job workgroup in an open Softimage session without restarting the software. This has worked reliably for years - until we started to regularly install a custom renderer into these job workgroups (in our case Arnold - but I've verified that this bug is not Arnold related). Right now our workgroup switching leads to a crash in roughly 50% of the cases in a UI session... :-/ BUT: the same workgroup switching code works on our farm absolutely flawlessly. --- This is what I think happens --- A workgroup unload will crash Softimage reliably if... 1.) a custom renderer is installed in this workgroup 2.) at least one .xsirtcompound file is part of this workgroup (either in /Data/RTCompounds, or as part of another addon) 3.) the Render Tree window was opened at least once in the UI session BEFORE the workgroup gets unloaded I think that when the Render Tree window gets displayed it refreshes its list of available shaders and rtcompounds. If this refresh gets executed before the attempted workgroup unload it will crash. You will achieve the same effect if you open the Preset Manager window. Please note that it already is enough to display the Render Tree window in an empty scene - the offending xsirtcompound must not be seen or used for the crash to happen. --- A few more remarks from my side --- 1.) I've run "unit tests" on my side (scripted UI sessions unloading a workgroup, loading a workgroup, rendering a preview frame, ... 50 times in a loop) without a crash. The minute I let the same test script also display the Render Tree window it crashes reliably. Removing the offending xsirtcompound file results in the same 50 loops of testing to finish reliably again. 2.) It is not important what xsirtcompound file it is - as long as it is a legal one. For my tests I just put a standard Mental Ray factory phong node into a compound and exported it into /Data/RTCompounds. 3.) We've seen this with many versions of Arnold - but to understand if this is a Softimage or Arnold issue I also tried this with the free version of 3Delight - same behaviour. 4.) I've tested this on Softimage 2012.SAP (x64) and 2013.SP1 (x64) - both on XP and Windows 7. --- Repro Steps --- 1.) Create an empty workgroup 2.) Install a custom renderer addon into this workgroup (e.g. 3delight) 3.) Place a legal .xsirtcompound file into Workgroup/Data/RTCompounds. (I just put a standard factory MentalRay phong node into a compound and exported it...) 4.) Start a fresh vanilla Softimage session and connect to this workgroup. 5.) Disconnect the workgroup again. --> This works 6.) Connect the workgroup again 7.) Disconnect the worgkroup again --> still no problem 8.) Now connect the workgroup once more 9.) Display a Render Tree Window 10) Now disconnect the workgroup again ---> crash... [ Repro'ed with Softimage 2012.SAP and 2013.SP1 (both x64) on both Windows 7 and Win XP64. ] [ Repro'ed with multiple versions of Arnold and 3Delight. ] -- Martin Chatterjee [ Freelance Technical Director ] [ http://www.chatterjee.de<http://www.chatterjee.de/> ] [ https://vimeo.com/chatterjee ]
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