[vtkusers] Volume Rendering in iOS

[Ken Martin]

OSX XCode comes with tools that will show specifically what OpenGL call is
producing the error. They are under XCode menu/ "Open Developer Tool" /
Instruments / OpenGL ES. Try working with that to nail down the specific
OpenGL call that is producing the problem.

Thanks
Ken

On Mon, Nov 16, 2015 at 4:39 AM, YassminAbdallah <yassminabdallah at gmail.com>
wrote:

> Hello good day,
>
>
> I try the volume rendering example in both simulator and iPhone 6 and i
> still get those errors message,
>
> for the first 'if' in the example i got those two error,
>
> ////////////////////////
> ERROR: In
> /Users/desktop/VTKBin/vtk/Rendering/OpenGL2/vtkOpenGLPolyDataMapper2D.cxx,
> line 850
> vtkOpenGLPolyDataMapper2D (0x156517f20): failed after RenderOverlay 1
> OpenGL
> errors detected
>   0 : (1286) Unknown error
>
>
> ERROR: In /Users/desktop/VTKBin/vtk/Rendering/OpenGL2/vtkTextureObject.cxx,
> line 554
> vtkTextureObject (0x174195950): failed at glBindTexture(0) 1 OpenGL errors
> detected
>   0 : (1286) Unknown error
>
>
> ////////////////////////
>
>
> and for the 'else' i just change the data format to DICOM image and i got
> those three errors,
>
> ////////////////////////
> ERROR: In
> /Users/desktop/VTKBin/vtk/Rendering/OpenGL2/vtkOpenGLPolyDataMapper2D.cxx,
> line 850
> vtkOpenGLPolyDataMapper2D (0x156d201d0): failed after RenderOverlay 1
> OpenGL
> errors detected
>   0 : (1286) Unknown error
>
>
> ERROR: In /Users/desktop/VTKBin/vtk/Rendering/OpenGL2/vtkTextureObject.cxx,
> line 1485
> vtkTextureObject (0x170199f30): failed at glTexImage2D 1 OpenGL errors
> detected
>   0 : (1282) Invalid operation
>
>
> ERROR: In /Users/desktop/VTKBin/vtk/Rendering/OpenGL2/vtkTextureObject.cxx,
> line 554
> vtkTextureObject (0x170199f30): failed at glBindTexture(0) 1 OpenGL errors
> detected
>   0 : (1286) Unknown error
> ////////////////////////
>
> any help please ?
>
>
>
>
> --
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-- 
Ken Martin PhD
Chairman & CFO
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065
518 371 3971

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