vtk shows black window

Support
1

Hi,
I managed to upgrad from vtk 5.5 to vtk 9.3 with my 32bit application (now 64bit application).
But there seems to be a problem, I am trying to push points into the cloud and want to show them, as they are shown in vtk 5.5. But the screen is black.
Maybe I missing illumination? Camera stuff?
In vtk5.5 there is no code hinting to this:

m_strLegendLabelPrefix = "-";
m_LegendLabelWidth = 6;
m_LegendLabelDigits = 2;

m_showPointStatistics = TRUE;
m_printSelfAlone = TRUE;
SetVTKEnable(TRUE);

// Colors of the Image Mapping (no need of more than one we need one for all)
m_pColorTransferFunction = vtkSmartPointer<CvtkTransparentUndefColorTransferFunction>::New();
// The interactor is needed for moving the Camera around some *Actors using mouse and keyboard
// one is enough
m_pAxes = vtkSmartPointer<vtkCubeAxesActor2D>::New();
SetAxesLabelDigits(2);

m_pAxes->SetFontFactor(1.7);
m_pAxes->SetCornerOffset(0);
m_pAxes->UseRangesOn();
m_pAxes->SetScaling(FALSE);  // No Changing of axes with zooming

// To set the text color to black
m_pAxes->GetAxisLabelTextProperty()->SetColor(0.1, 0.1, 0.1);
m_pAxes->GetAxisTitleTextProperty()->SetColor(0.1, 0.1, 0.1);

// the legend should be one of course
m_pLegend = vtkSmartPointer<vtkScalarBarActor>::New();
SetLegendLabelDigits(2);
SetLegendLabelWidth(6);
SetLegendLabelPrefix("-");

// To set the text color to black
m_pLegend->GetLabelTextProperty()->SetColor(0.1, 0.1, 0.1);
m_pLegend->GetTitleTextProperty()->SetColor(0.1, 0.1, 0.1);

// the legend Lookup Table also
m_pLegendLut = vtkSmartPointer<vtkColorTransferFunction>::New();
m_pLegend->SetLookupTable(m_pLegendLut);
SetStandardLUT();

// wafer 
m_pDiskMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
m_pCircle = vtkSmartPointer<vtkActor>::New();
m_pDisk = vtkSmartPointer<vtkDiskSource>::New();

//Titel
m_pTitle = vtkSmartPointer<vtkTextActor>::New();
m_pTitle->GetTextProperty()->SetFontSize(24);
m_pTitle->SetDisplayPosition(10, 10);

// To set the title color to black
m_pTitle->GetTextProperty()->SetColor (0.1, 0.1, 0.1);

for ( int i=0; i<6; i++ )
{
	m_bUsePropBounds[i] = FALSE;
	Undefine(m_UserRange[i]);
}
m_bManualAxisLabels = false;
m_LabelX = "";
m_LabelY = "";
m_LabelZ = "";

Here I pushing some Points into the sepcified vtk objects.

FLOAT32 z = 0;
m_pCellArray->InsertNextCell(4);
MakePointData(pX[i], pY[i], Valids, CellPointIdx, PointX, PointY);
for (UINT32 k=0; k<4; k++)
{
				m_pPoints->InsertPoint(CellPointIdx[k], PointX[k], PointY[k], z);
				m_pCellArray->InsertCellPoint(CellPointIdx[k]);
				m_pScalars->InsertNextValue(pScalars[i]);
}

Am I missing something? I’ve done some stuff like:
SetInput to SetInputData as mentioned in the wiki.
Rendering is done by:

m_pRenderWindow->Render(); // vtkWin32OpenGLRenderWindow
2

I made a simple example:

m_pRenderer = vtkSmartPointer<vtkRenderer>::New();
m_pRenderWindow = vtkSmartPointer<vtkWin32OpenGLRenderWindow>::New();
m_pInteractor = vtkSmartPointer<vtkWin32RenderWindowInteractor>::New();
vtkNew<vtkNamedColors> colors;

m_pRenderWindow->AddRenderer(m_pRenderer);
m_pRenderWindow->SetSize(300, 300);

m_pInteractor->SetRenderWindow(m_pRenderWindow);
m_pRenderer->SetBackground(colors->GetColor3d("SlateGray").GetData());

m_pRenderer->GetActiveCamera()->Azimuth(50);
m_pRenderer->GetActiveCamera()->Elevation(-30);
m_pRenderer->AutomaticLightCreationOn();
m_pRenderer->ResetCamera();
m_pRenderWindow->Render();

Getting a black window

3

Could you be missing m_pInteractor->Start(); after the last line ?

4

Seems to be, but now is the problem, that I getting the error, that Glew is missing, but I using win32 OpenGL which will use GLU?

vtkWin32OpenGLRenderWindow (0000011D8A04EF60): GLEW could not be initialized: Missing GL version
5

Ok, I can now reproduce the problem.

It has nothing to with the interactor.
Its because of using Win32OpenGLRenderWindow or not. Without Glew, it does not work, hence it uses then GLU. I tried it on a Laptop with intel/nvidia Hardware and on a total different PC with newest AMD and ATI. Same issue, same cmake build: black window. Is there something I miss regarding OpenGL usage without GLEW? Seems to be weird, to need using GLEW to Render stuff.

6

so I getting somewhere.
I used Glew, set everything up fine.
Using vtkWin32OpenGLRenderWindow and vtkExternalOpenGLRenderer for the rendering of the Window. So far so good. Working well, if the initialisation is done right.

grafik
grafik765×507 10.3 KB

But the background is black, it should be white and there should be something to see.
Suggestios?

Also there is a problem with Rendering “µ” when using vtkTextActor, do not know how to do this in utf-8 without messing with the code to convert every occurance of µ into utf-8. I use CString (which will be CStringW)

7

As I see in the source codes and especially in the Examples part, since vtk 9 examples for mfc are deleted, why? Is this not supported anymore?

8

problem persist