1 /*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: TestGPURayCastFourComponentsMIP.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
16 // This test volume renders the vase dataset with 4 dependent components the
17 // maximum intensity projection method.
18
19 #include "vtkGPUVolumeRayCastMapper.h"
20 #include "vtkTestUtilities.h"
21 #include "vtkXMLImageDataReader.h"
22 #include "vtkImageShiftScale.h"
23 #include "vtkColorTransferFunction.h"
24 #include "vtkPiecewiseFunction.h"
25 #include "vtkTransform.h"
26 #include "vtkRenderer.h"
27 #include "vtkRenderWindow.h"
28 #include "vtkRenderWindowInteractor.h"
29 #include "vtkVolumeProperty.h"
30 #include "vtkCamera.h"
31 #include "vtkRegressionTestImage.h"
32
TestGPURayCastFourComponentsMIP(int argc,char * argv[])33 int TestGPURayCastFourComponentsMIP(int argc,
34 char *argv[])
35 {
36 cout << "CTEST_FULL_OUTPUT (Avoid ctest truncation of output)" << endl;
37 char *cfname=
38 vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/vase_4comp.vti");
39
40 vtkXMLImageDataReader *reader=vtkXMLImageDataReader::New();
41 reader->SetFileName(cfname);
42 delete [] cfname;
43
44 vtkRenderer *ren1=vtkRenderer::New();
45 vtkRenderWindow *renWin=vtkRenderWindow::New();
46 renWin->AddRenderer(ren1);
47 renWin->SetSize(301,300);
48 vtkRenderWindowInteractor *iren=vtkRenderWindowInteractor::New();
49 iren->SetRenderWindow(renWin);
50
51 renWin->Render();
52
53 vtkGPUVolumeRayCastMapper *volumeMapper;
54 vtkVolumeProperty *volumeProperty;
55 vtkVolume *volume;
56
57 volumeMapper=vtkGPUVolumeRayCastMapper::New();
58 volumeMapper->SetBlendModeToMaximumIntensity();
59 volumeMapper->SetInputConnection(
60 reader->GetOutputPort());
61
62 volumeProperty=vtkVolumeProperty::New();
63 volumeProperty->IndependentComponentsOff();
64 volumeProperty->SetInterpolationType(VTK_LINEAR_INTERPOLATION);
65
66 vtkPiecewiseFunction *f = vtkPiecewiseFunction::New();
67 f->AddPoint(0,0.0);
68 f->AddPoint(255,1.0);
69 volumeProperty->SetScalarOpacity(f);
70 f->Delete();
71
72 volume=vtkVolume::New();
73 volume->SetMapper(volumeMapper);
74 volume->SetProperty(volumeProperty);
75 ren1->AddViewProp(volume);
76
77 int valid=volumeMapper->IsRenderSupported(renWin,volumeProperty);
78
79 int retVal;
80 if(valid)
81 {
82 iren->Initialize();
83 ren1->SetBackground(0.1,0.4,0.2);
84 ren1->ResetCamera();
85 renWin->Render();
86
87 retVal = vtkTesting::Test(argc, argv, renWin, 75);
88 if (retVal == vtkRegressionTester::DO_INTERACTOR)
89 {
90 iren->Start();
91 }
92 }
93 else
94 {
95 retVal=vtkTesting::PASSED;
96 cout << "Required extensions not supported." << endl;
97 }
98
99 iren->Delete();
100 renWin->Delete();
101 ren1->Delete();
102 volumeMapper->Delete();
103 volumeProperty->Delete();
104 volume->Delete();
105
106 reader->Delete();
107
108 if ((retVal == vtkTesting::PASSED) || (retVal == vtkTesting::DO_INTERACTOR))
109 {
110 return 0;
111 }
112 else
113 {
114 return 1;
115 }
116 }
117