1 #include <vtkAutoInit.h>
2 VTK_MODULE_INIT(vtkRenderingOpenGL2);
3 VTK_MODULE_INIT(vtkRenderingVolumeOpenGL2);
4 VTK_MODULE_INIT(vtkRenderingFreeType);
5 VTK_MODULE_INIT(vtkInteractionStyle);
6
7 #include <vtkSmartPointer.h>
8 #include <vtkStructuredPointsReader.h>
9 #include <vtkStructuredPoints.h>
10 #include <vtkGPUVolumeRayCastMapper.h>
11 #include <vtkVolumeProperty.h>
12 #include <vtkPiecewiseFunction.h>
13 #include <vtkColorTransferFunction.h>
14 #include <vtkVolume.h>
15 #include <vtkRenderer.h>
16 #include <vtkRenderWindow.h>
17 #include <vtkRenderWindowInteractor.h>
18 #include <vtkCamera.h>
19
20 int main()
21 {
22 vtkSmartPointer<vtkStructuredPointsReader> reader =
23 vtkSmartPointer<vtkStructuredPointsReader>::New();
24 reader->SetFileName("C:\\Users\\Administrator\\Desktop\\VTK2\\hellovtk\\vtk_图像处理学习\\第七章_VTK体绘制\\data\\mummy.128.vtk");
25 reader->Update();
26
27 vtkSmartPointer<vtkGPUVolumeRayCastMapper> volumeMapper1 =
28 vtkSmartPointer<vtkGPUVolumeRayCastMapper>::New();
29 volumeMapper1->SetInputData(reader->GetOutput());
30
31 vtkSmartPointer<vtkGPUVolumeRayCastMapper> volumeMapper2 =
32 vtkSmartPointer<vtkGPUVolumeRayCastMapper>::New();
33 volumeMapper2->SetInputData(reader->GetOutput());
34 /****************************************************************/
35 vtkSmartPointer<vtkVolumeProperty> volumeProperty1 =
36 vtkSmartPointer<vtkVolumeProperty>::New();
37 volumeProperty1->SetInterpolationTypeToLinear(); //设置线性插值
38 volumeProperty1->ShadeOn();//开启阴影功能
39 volumeProperty1->SetAmbient(0.4);//设置环境温度系数
40 volumeProperty1->SetDiffuse(0.6);//设置漫反射系数
41 volumeProperty1->SetSpecular(0.2);//设置镜面反射系数
42
43 vtkSmartPointer<vtkPiecewiseFunction> compositeOpacity1 =
44 vtkSmartPointer<vtkPiecewiseFunction>::New();
45 compositeOpacity1->AddPoint(70, 0.0);
46 compositeOpacity1->AddPoint(90, 0.4);
47 compositeOpacity1->AddPoint(180, 0.6);
48 volumeProperty1->SetScalarOpacity(compositeOpacity1);
49
50 vtkSmartPointer<vtkVolumeProperty> volumeProperty2 =
51 vtkSmartPointer<vtkVolumeProperty>::New();
52 volumeProperty2->SetInterpolationTypeToLinear(); //设置线性插值
53 volumeProperty2->ShadeOn();//开启阴影功能
54 volumeProperty2->SetAmbient(0.4);//设置环境温度系数
55 volumeProperty2->SetDiffuse(0.6);//设置漫反射系数
56 volumeProperty2->SetSpecular(0.2);//设置镜面反射系数
57
58 vtkSmartPointer<vtkPiecewiseFunction> compositeOpacity2 =
59 vtkSmartPointer<vtkPiecewiseFunction>::New();
60 compositeOpacity2->AddPoint(100, 0.0);
61 compositeOpacity2->AddPoint(140, 0.4);
62 compositeOpacity2->AddPoint(180, 0.6);
63 volumeProperty2->SetScalarOpacity(compositeOpacity2);
64 /
65 vtkSmartPointer<vtkPiecewiseFunction> gradientOpacity =
66 vtkSmartPointer<vtkPiecewiseFunction>::New();
67 gradientOpacity->AddPoint(10, 0.0);
68 gradientOpacity->AddPoint(90, 0.5);
69 gradientOpacity->AddPoint(100, 1.0);
70 volumeProperty1->SetGradientOpacity(gradientOpacity);
71 volumeProperty2->SetGradientOpacity(gradientOpacity);
72
73 vtkSmartPointer<vtkColorTransferFunction> color =
74 vtkSmartPointer<vtkColorTransferFunction>::New();
75 color->AddRGBPoint(0, 0, 0, 0);
76 color->AddRGBPoint(64, 1.0, 0.52, 0.3);
77 color->AddRGBPoint(190.0, 1.00, 1.00, 1.00);
78 color->AddRGBPoint(220.0, 0.20, 0.20, 0.20);
79 volumeProperty1->SetColor(color);
80 volumeProperty2->SetColor(color);
81 /****************************************************************/
82 vtkSmartPointer<vtkVolume> volume1 =
83 vtkSmartPointer<vtkVolume>::New();
84 volume1->SetMapper(volumeMapper1);
85 volume1->SetProperty(volumeProperty1);
86
87 vtkSmartPointer<vtkVolume> volume2 =
88 vtkSmartPointer<vtkVolume>::New();
89 volume2->SetMapper(volumeMapper2);
90 volume2->SetProperty(volumeProperty2);
91 //
92 double View1[4] = { 0, 0, 0.5, 1 };
93 double View2[4] = { 0.5, 0, 1, 1 };
94 vtkSmartPointer<vtkRenderer> render1 =
95 vtkSmartPointer<vtkRenderer>::New();
96 render1->AddVolume(volume1);
97 render1->SetViewport(View1);
98 render1->SetBackground(1, 1, 0);
99
100 vtkSmartPointer<vtkRenderer> render2 =
101 vtkSmartPointer<vtkRenderer>::New();
102 render2->AddVolume(volume2);
103 render2->SetViewport(View2);
104 render2->SetBackground(0, 1, 0);
105
106 vtkSmartPointer<vtkRenderWindow> rw =
107 vtkSmartPointer<vtkRenderWindow>::New();
108 rw->AddRenderer(render1);
109 rw->AddRenderer(render2);
110 rw->SetSize(640, 320);
111 rw->SetWindowName("Differ Gray Opacity Function");
112
113 vtkSmartPointer<vtkRenderWindowInteractor> rwi =
114 vtkSmartPointer<vtkRenderWindowInteractor>::New();
115 rwi->SetRenderWindow(rw);
116
117 render1->GetActiveCamera()->SetPosition(0, -1, 0);
118 render1->GetActiveCamera()->SetFocalPoint(0, 0, 0);
119 render1->GetActiveCamera()->SetViewUp(0, 0, 1);
120 render1->GetActiveCamera()->Azimuth(30);
121 render1->GetActiveCamera()->Elevation(30);
122 render1->ResetCamera();
123 render2->SetActiveCamera(render1->GetActiveCamera());
124
125 rw->Render();
126 rwi->Start();
127 return 0;
128 }
