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  1. Qt
  2. QTBUG-49614

Changing cylinder mesh length crashes

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P1: Critical P1: Critical
    • 5.6.0 RC
    • 5.6.0 Beta
    • Qt3D
    • None
    • Windows 7 64bit, Intel HD 4600 gpu
    • c19d9f1c36db92ff625392d9f34a4faba485bbd5

      Changing CylinderMesh length crashes at next render:

      1	RegisterProcTableCallback	ig75icd64		0x7fee012ad40	
      2	RegisterProcTableCallback	ig75icd64		0x7fee012d5d1	
      3	DrvSetLayerPaletteEntries	ig75icd64		0x7fee032c986	
      4	DrvSetLayerPaletteEntries	ig75icd64		0x7fee02c6575	
      5	DrvSetLayerPaletteEntries	ig75icd64		0x7fee032d14a	
      6	DrvSetLayerPaletteEntries	ig75icd64		0x7fee032d691	
      7	QOpenGLFunctions_4_3_Core::glDrawElementsBaseVertex	qopenglfunctions_4_3_core.h	1942	0x7fee1bb5c50	
      8	Qt3DRender::Render::GraphicsHelperGL4::drawElements	graphicshelpergl4.cpp	113	0x7fee0d591c6	
      9	Qt3DRender::Render::GraphicsContext::drawElements	graphicscontext.cpp	662	0x7fee0d2f04f	
      10	Qt3DRender::Render::Renderer::executeCommands	renderer.cpp	934	0x7fee0c6cb42	
      11	Qt3DRender::Render::Renderer::submitRenderViews	renderer.cpp	711	0x7fee0c6dd63	
      12	Qt3DRender::Render::Renderer::doRender	renderer.cpp	546	0x7fee0c6bbc3	
      13	Qt3DRender::Render::Renderer::render	renderer.cpp	538	0x7fee0c6bb91	
      14	Qt3DRender::Render::RenderThread::run	renderthread.cpp	93	0x7fee0c63551	
      15	QThreadPrivate::start	qthread_win.cpp	369	0x664533f8	
      16	_callthreadstartex	threadex.c	376	0x7fee11ba105	
      17	_threadstartex	threadex.c	359	0x7fee11ba357	
      18	BaseThreadInitThunk	kernel32		0x773159dd	
      19	RtlUserThreadStart	ntdll		0x7744a631	
      

      To repro, change sphere to cylinder in simple-qml and change lenght using timer. Crashes after first change:

              CylinderMesh {
                  id: sphereMesh
                  radius:1
                  length:4
              }
              QQ2.Timer {
                  id: timer
                  interval: 3000
                  repeat: true
                  QQ2.Component.onCompleted: {
                      timer.start()
                  }
                  onTriggered: {
                      if (sphereMesh.length === 10) {
                          console.log("Setting length to 1")
                          sphereMesh.length = 1
                      }else {
                          console.log("Setting length to 10")
                          sphereMesh.length = 10
                      }
                  }
              }
      

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            whagen Wieland Hagen
            e0348803 Miikka Heikkinen
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              Created:
              Updated:
              Resolved:

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