[vtkusers] Volume Rendering in iOS

[Ken Martin]

Did the volume rendering example for iOS included with VTK work?

Ken Martin PhD
Chairman & CFO
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065
ken.martin at kitware.com
919 869-8871 (w)


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-----Original Message-----
From: vtkusers [mailto:vtkusers-bounces at vtk.org] On Behalf Of
YassminAbdallah
Sent: Tuesday, November 3, 2015 1:18 PM
To: vtkusers at vtk.org
Subject: [vtkusers] Volume Rendering in iOS


hello,

i trying to  run  volume rendering example in iOS using DICOM images, but
i get those errors,

ERROR: In
/Users/Yassmin/desktop/VTKBin/VTK/Rendering/OpenGL2/vtkOpenGLPolyDataMappe
r2D.cxx,
line 850
vtkOpenGLPolyDataMapper2D (0x7fae62e6d7f0): failed after RenderOverlay 1
OpenGL errors detected
 0 : (1286) Unknown error


ERROR: In
/Users/Yassmin/desktop/VTKBin/VTK/Rendering/OpenGL2/vtkTextureObject.cxx,
line 1485
vtkTextureObject (0x7fae62e6c120): failed at glTexImage2D 1 OpenGL errors
detected
 0 : (1282) Invalid operation


ERROR: In
/Users/Yassmin/desktop/VTKBin/VTK/Rendering/OpenGL2/vtkTextureObject.cxx,
line 554
vtkTextureObject (0x7fae62e6c120): failed at glBindTexture(0) 1 OpenGL
errors detected
 0 : (1286) Unknown error



and here is sample code,


vtkNew<vtkOpenGLGPUVolumeRayCastMapper> volumeMapper;
vtkNew<vtkDICOMImageReader> reader ;
reader->SetDirectoryName("Users/Yassmin/Desktop/sample");
reader->Update();
double range[2];
reader->GetOutput()->GetPointData()->GetScalars()->GetRange(range);
volumeMapper->SetInputConnection(reader->GetOutputPort());


Thanks in advance




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