1 /*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: TestGPURayCastVolumeRotation.cxx
5
6 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7 All rights reserved.
8 See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9
10 This software is distributed WITHOUT ANY WARRANTY; without even
11 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12 PURPOSE. See the above copyright notice for more information.
13
14 =========================================================================*/
15 // This test covers additive method.
16 // This test volume renders a synthetic dataset with unsigned char values,
17 // with the additive method.
18
19 #include <vtkCamera.h>
20 #include <vtkColorTransferFunction.h>
21 #include <vtkDataArray.h>
22 #include <vtkGPUVolumeRayCastMapper.h>
23 #include <vtkImageData.h>
24 #include <vtkImageReader.h>
25 #include <vtkImageShiftScale.h>
26 #include <vtkNew.h>
27 #include <vtkOutlineFilter.h>
28 #include <vtkPiecewiseFunction.h>
29 #include <vtkPointData.h>
30 #include <vtkPolyDataMapper.h>
31 #include <vtkRegressionTestImage.h>
32 #include <vtkRenderWindow.h>
33 #include <vtkRenderWindowInteractor.h>
34 #include <vtkRenderer.h>
35 #include <vtkSmartPointer.h>
36 #include <vtkStructuredPointsReader.h>
37 #include <vtkTestUtilities.h>
38 #include <vtkTimerLog.h>
39 #include <vtkVolumeProperty.h>
40 #include <vtkXMLImageDataReader.h>
41
TestGPURayCastVolumeRotation(int argc,char * argv[])42 int TestGPURayCastVolumeRotation(int argc, char *argv[])
43 {
44 double scalarRange[2];
45
46 vtkNew<vtkActor> outlineActor;
47 vtkNew<vtkPolyDataMapper> outlineMapper;
48 vtkNew<vtkGPUVolumeRayCastMapper> volumeMapper;
49
50 vtkNew<vtkXMLImageDataReader> reader;
51 const char* volumeFile = vtkTestUtilities::ExpandDataFileName(
52 argc, argv, "Data/vase_1comp.vti");
53 reader->SetFileName(volumeFile);
54 volumeMapper->SetInputConnection(reader->GetOutputPort());
55 volumeMapper->SetSampleDistance(0.01);
56
57 // Add outline filter
58 vtkNew<vtkOutlineFilter> outlineFilter;
59 outlineFilter->SetInputConnection(reader->GetOutputPort());
60 outlineMapper->SetInputConnection(outlineFilter->GetOutputPort());
61 outlineActor->SetMapper(outlineMapper.GetPointer());
62
63 volumeMapper->GetInput()->GetScalarRange(scalarRange);
64 volumeMapper->SetBlendModeToComposite();
65 volumeMapper->SetAutoAdjustSampleDistances(1);
66
67 vtkNew<vtkRenderWindow> renWin;
68 renWin->SetMultiSamples(0);
69 vtkNew<vtkRenderer> ren;
70 renWin->AddRenderer(ren.GetPointer());
71 ren->SetBackground(0.2, 0.2, 0.5);
72 renWin->SetSize(400, 400);
73
74 vtkNew<vtkRenderWindowInteractor> iren;
75 iren->SetRenderWindow(renWin.GetPointer());
76
77 vtkNew<vtkPiecewiseFunction> scalarOpacity;
78 scalarOpacity->AddPoint(50, 0.0);
79 scalarOpacity->AddPoint(75, 0.1);
80
81 vtkNew<vtkVolumeProperty> volumeProperty;
82 volumeProperty->ShadeOff();
83 volumeProperty->SetInterpolationType(VTK_LINEAR_INTERPOLATION);
84
85 volumeProperty->SetScalarOpacity(scalarOpacity.GetPointer());
86
87 vtkSmartPointer<vtkColorTransferFunction> colorTransferFunction =
88 volumeProperty->GetRGBTransferFunction(0);
89 colorTransferFunction->RemoveAllPoints();
90 colorTransferFunction->AddRGBPoint(scalarRange[0], 0.0, 0.8, 0.1);
91 colorTransferFunction->AddRGBPoint(scalarRange[1], 0.0, 0.8, 0.1);
92
93 vtkNew<vtkVolume> volume;
94 volume->SetMapper(volumeMapper.GetPointer());
95 volume->SetProperty(volumeProperty.GetPointer());
96
97 /// Rotate the volume for testing purposes
98 volume->RotateY(45.0);
99 outlineActor->RotateY(45.0);
100 volume->RotateZ(-90.0);
101 outlineActor->RotateZ(-90.0);
102 volume->RotateX(90.0);
103 outlineActor->RotateX(90.0);
104
105 ren->AddViewProp(volume.GetPointer());
106 ren->AddActor(outlineActor.GetPointer());
107 renWin->Render();
108 ren->ResetCamera();
109
110 iren->Initialize();
111 iren->SetDesiredUpdateRate(30.0);
112
113 int retVal = vtkRegressionTestImage( renWin.GetPointer() );
114 if( retVal == vtkRegressionTester::DO_INTERACTOR)
115 {
116 iren->Start();
117 }
118
119 return !retVal;
120 }
121