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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hi there,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I added a texture to the OffScreenRendering example ( <a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Utilities/OffScreenRendering">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Utilities/OffScreenRendering</a> ) and now it crashes. All I did was to add the following lines:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>//inserted after line 34 of the example<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> vtkSmartPointer<vtkPNGReader> reader = vtkSmartPointer<vtkPNGReader>::New();<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> reader->SetFileName("some image path");<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> reader->Update();<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> vtkSmartPointer<vtkTexture> texture = vtkSmartPointer<vtkTexture>::New();<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> texture->SetInputConnection(reader->GetOutputPort());<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US> vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); //same as in example<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> actor->SetMapper(mapper); //same as in example<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US> actor->SetTexture(texture); //added <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The example works perfectly fine without the texture or if I disable MESA and use OpenGL only (so in that case I do not use OffScreenRendering and the texture is added to the sphere). <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The crash occurs in vtkPixelBufferObject.cxx in line 305. I use MESA 7.10 in Ubuntu 11.04. I was able to reproduce this crash on two machines with the same configuration. Currently, I try to verify this on another machine using Arch Linux including a recent MESA version.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Does anyone have an idea why the texture does not work here? Is there maybe something wrong with my MESA build?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Best regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Thomas<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>