VrayBridge+IRR crash

  • On 20/09/2013 at 01:38, xxxxxxxx wrote:

    User Information:
    Cinema 4D Version:   R13+ 
    Platform:   Windows  ;   Mac OSX  ; 
    Language(s) :     C++  ;

    This is a difficult one to work out.  If the Interactive Render Region is active using the VrayBridge for rendering while using my tool (mouse click) to change the image used by the Shader attached to both the Vray Light tag and VrayBridge Environment, soon enough the VrayBridge crashes.  My plugin does not crash but is definitely involved in VB's demise.

    So far, I have tried StopExternalRenderer() along with StopAllThreads() but was not so sure these would be effective against the IRR (and they weren't).  Here is the code where VB crashes (Access Violation) :

    void LivePanel::UpdateHDRI_VRay(BaseDocument* pDoc, BaseObject* pObj, const Filename& fnProject)  
    #ifdef    DEVELOPMENT  
      // UPDATE 2013.09.09  
      //        Implemented HDR file update of Vray Light tag  
      GeData        data;  
      pObj->GetParameter(DescID(HDRLSOBJECT_LUMINANCE_OBJ), data, DESCFLAGS_GET_0);  
      pObj =                    static_cast<BaseObject*>(data.GetLink(pDoc));  
      if (!pObj)  
      BaseTag*    pVTag =        pObj->GetTag(PLUGINID_VRAYLIGHTTAG);  
      if (!pVTag)  
      pVTag->GetParameter(DescID(VRAYLIGHTTAG_AREA_DOME_TEX), data, DESCFLAGS_GET_0);  
      BaseShader*    pShader =    static_cast<BaseShader*>(data.GetLink(pDoc));  
      if (!pShader)  
      if (!StopExternalRenderer())    return;  
      pShader->SetParameter(DescID(BITMAPSHADER_FILENAME), GeData(fnProject), DESCFLAGS_SET_0);  
      // - VrayBridge should react automatically to shader changes (we hope!)  

    As that last comment states, it indeed does.  Either it works or it crashes.  Anyway to suspend the IRR render while making these changes?

    ETA: How would one go about checking if IRR is enabled so as to disable it using CallCommand()? Does CheckIsRunning(CHECKISRUNNING_EDITORRENDERING) consider the IRR?


  • On 20/09/2013 at 02:09, xxxxxxxx wrote:

    IsCommandEnabled() for my next to last question. :)

  • On 20/09/2013 at 04:26, xxxxxxxx wrote:

    Nevermind.  It appears that this issue is endemic to VrayBridge and not just our plugin.  I can choose any tool and click enough to crash it when IRR is enabled.  So, it will be more on them to remedy the situation that us.

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