[vtkusers] Error setting 'vertexMC' in shader VAO and EGL_BAD_DISPLAY

[Lonni Besançon]

Hello,

I am trying to write my own InteractorStyle for android. So far I was
successful in changing what I wanted to change and creating it. Now I wanted
to add a function that could handle a given rotation/translation given as a
parameter. Here goes the function:


/void myfunction(double* rotation, double* translation){
    vtkProp3D* prop3D = actor ; // Actor is a variable of the class
    vtkTransform* t = vtkTransform::New();
    t->Identity();
    t->RotateX(rotation[0]);
    t->RotateY(rotation[1]);
    t->RotateZ(rotation[2]);

    prop3D->SetUserMatrix(t->GetMatrix());

    vtkRenderWindowInteractor *rwi = this->Interactor;
    rwi->Render();
}/

My previous code was working just fine, but now when I call this function I
get the following errors:
/
E/VTK     ( 6271): ERROR: In
/Users/....../Rendering/OpenGL2/vtkOpenGLPolyDataMapper.cxx, line 1413
E/VTK     ( 6271): vtkOpenGLPolyDataMapper (0x4b8e6e90): Error setting
'vertexMC' in shader VAO.
E/VTK     ( 6271): ERROR: In
/Users/....../Rendering/OpenGL2/vtkOpenGLPolyDataMapper.cxx, line 1421
E/VTK     ( 6271): vtkOpenGLPolyDataMapper (0x4b8e6e90): Error setting
'normalMC' in shader VAO.
E/VTK     ( 6271): ERROR: In
/Users/....../Rendering/OpenGL2/vtkOpenGLPolyDataMapper.cxx, line 1413
E/VTK     ( 6271): vtkOpenGLPolyDataMapper (0x4b8e6e90): Error setting
'vertexMC' in shader VAO.
E/VTK     ( 6271): ERROR: In
/Users/....../Rendering/OpenGL2/vtkOpenGLPolyDataMapper.cxx, line 1421
E/VTK     ( 6271): vtkOpenGLPolyDataMapper (0x4b8e6e90): Error setting
'normalMC' in shader VAO.
E/libEGL  ( 6271): validate_display:254 error 3008 (EGL_BAD_DISPLAY)
E/VTK     ( 6271): ERROR: In
/Users/....../Rendering/OpenGL2/vtkOpenGLPolyDataMapper.cxx, line 1413
E/VTK     ( 6271): vtkOpenGLPolyDataMapper (0x4b8e6e90): Error setting
'vertexMC' in shader VAO.
E/VTK     ( 6271): ERROR: In
/Users/....../Rendering/OpenGL2/vtkOpenGLPolyDataMapper.cxx, line 142
/

Note that the application does not crash and that my actor is rotated (by a
fixed rotation even if I change the values) and that if I start a normal
interaction with the actor again the application works just fine.

I was therefore wondering what I am doing wrong here.

I have created a post on StackOverflow for a more readable version of the
code and the errors.
StackOverflow Post
<http://stackoverflow.com/questions/33778197/vtk-error-setting-vertexmc-in-shader-vao-and-egl-bad-display>  



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