[vtkusers] Infinite sea plane - what's the best way?

[Todd Martin]

Did you get the plan rendering without a texture first?


Todd Martin, Ph.D.
Freelance Engineer/Software Architect.
 

    On Tuesday, April 10, 2018, 2:05:15 PM GMT+12, Jesse Kinross-Smith <Jesse.Kinross-Smith at bentley.com> wrote:  
 
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So I need to create an infinite textured plane to represent the sea.
 
vtkPlaneSource seems like the right object, but I can’t seem to get any of the examples to display anything.
 
A colleague tried a while back also but said he could only get it to work with OpenGL not OpenGL2.
 
Anyone able to offer any ideas?
 
I’ve got a rectilinear grid working, but it’s not ideal, really need an infinite textured plane.
 
  
 
Using VTK 8.1.0, C++
 
  
 
voidCModelView::vtkRenderImageToPlane(constCString&inputFilename,floatx,floaty,floatz)
 
{
 
      USES_CONVERSION;
 
       std::string filename = W2A(inputFilename);
 
  
 
      // Read the image which will be the texture,
 
      Image_Type imageType = GetImageType(inputFilename);
 
      vtkAlgorithmOutput* ImageOutput =NULL;
 
      vtkSmartPointer<vtkPNGReader> pNGReader = NULL;
 
      vtkSmartPointer<vtkJPEGReader> jPEGReader = NULL;
 
      vtkSmartPointer<vtkBMPReader> bMPReader = NULL;
 
      switch (imageType)
 
       {
 
             caseImage_Type::PNG:
 
              {
 
                      pNGReader=vtkSmartPointer<vtkPNGReader>::New();
 
                      pNGReader->SetFileName(filename.c_str());
 
                      pNGReader->Update();
 
                      ImageOutput = pNGReader->GetOutputPort();
 
              }
 
             break;
 
             caseImage_Type::JPG:
 
              {
 
                      jPEGReader=vtkSmartPointer<vtkJPEGReader>::New();
 
                      jPEGReader->SetFileName(filename.c_str());
 
                      jPEGReader->Update();
 
                      ImageOutput = jPEGReader->GetOutputPort();
 
              }
 
             break;
 
             caseImage_Type::BMP:
 
              {
 
                      bMPReader=vtkSmartPointer<vtkBMPReader>::New();
 
                      bMPReader->SetFileName(filename.c_str());
 
                      bMPReader->Update();
 
                      ImageOutput = bMPReader->GetOutputPort();
 
              }
 
             break;
 
       }
 
      if (ImageOutput ==NULL || (pNGReader==NULL && jPEGReader==NULL && bMPReader==NULL))
 
             return;
 
  
 
      // Create a plane
 
      vtkSmartPointer<vtkPlaneSource> plane = vtkSmartPointer<vtkPlaneSource>::New();
 
       plane->SetNormal(0.0, 0.0, 1.0);
 
       plane->SetCenter(0, 0, 0);
 
      //plane->SetResolution(100, 100);
 
      //plane->SetPoint1(100000, -100000, 0);
 
      //plane->SetPoint2(-100000, 100000, 0);
 
      
 
      // Apply the texture
 
      vtkSmartPointer<vtkTexture> texture = vtkSmartPointer<vtkTexture>::New();
 
       texture->SetInputConnection(ImageOutput);
 
       texture->InterpolateOn();
 
       texture->RepeatOn();
 
  
 
      vtkSmartPointer<vtkTextureMapToPlane> texturePlane = vtkSmartPointer<vtkTextureMapToPlane>::New();
 
       texturePlane->SetInputConnection(plane->GetOutputPort());
 
  
 
      vtkSmartPointer<vtkPolyDataMapper> planeMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
 
       planeMapper->SetInputConnection(texturePlane->GetOutputPort());
 
  
 
      vtkSmartPointer<vtkActor> texturedPlane = vtkSmartPointer<vtkActor>::New();
 
       texturedPlane->SetMapper(planeMapper);
 
       texturedPlane->SetTexture(texture);
 
       texturedPlane->GetProperty()->SetOpacity(0.7);
 
       texturedPlane->SetPickable(FALSE);
 
  
 
      // Visualize the textured plane
 
       m_vtkRenderer->AddActor(texturedPlane);
 
  
 
}
 
  
 
--
 
Jesse Kinross-Smith
 
Senior Software Engineer - BSW
 
Bentley Systems, Fremantle
 
  
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