1 /*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: TestGPURayCastFourComponentsCompositeStreaming.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
17 // This test volume renders the vase dataset with 4 dependent components the
18 // composite method with no shading.
19
20 #include "vtkGPUVolumeRayCastMapper.h"
21 #include "vtkTestUtilities.h"
22 #include "vtkXMLImageDataReader.h"
23 #include "vtkImageShiftScale.h"
24 #include "vtkColorTransferFunction.h"
25 #include "vtkPiecewiseFunction.h"
26 #include "vtkTransform.h"
27 #include "vtkRenderer.h"
28 #include "vtkRenderWindow.h"
29 #include "vtkRenderWindowInteractor.h"
30 #include "vtkVolumeProperty.h"
31 #include "vtkCamera.h"
32 #include "vtkRegressionTestImage.h"
33 #include "vtkImageMagnify.h"
34 #include "vtkImageData.h"
35
TestGPURayCastFourComponentsCompositeStreaming(int argc,char * argv[])36 int TestGPURayCastFourComponentsCompositeStreaming(int argc,
37 char *argv[])
38 {
39 cout << "CTEST_FULL_OUTPUT (Avoid ctest truncation of output)" << endl;
40 char *cfname=
41 vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/vase_4comp.vti");
42
43 vtkXMLImageDataReader *reader=vtkXMLImageDataReader::New();
44 reader->SetFileName(cfname);
45 delete [] cfname;
46
47
48 vtkImageMagnify *mag=vtkImageMagnify::New();
49 mag->SetInputConnection(reader->GetOutputPort());
50 mag->SetMagnificationFactors(5,1,1);
51 mag->SetInterpolate(1);
52
53 int dims[3];
54 mag->Update();
55 mag->GetOutput()->GetDimensions(dims);
56 unsigned long sizekb=mag->GetOutput()->GetActualMemorySize();
57 cout<<"Memory usage for the ImageData="<<(sizekb/1024)<<"Mb"<<endl;
58 cout<<"Dims of the ImageData="<<dims[0]<<"x"<<dims[1]<<"x"<<dims[2]<<"="<<(dims[0]*dims[1]*dims[2])/1024/1024<<"Mb"<<endl;
59
60
61 vtkRenderer *ren1=vtkRenderer::New();
62 vtkRenderWindow *renWin=vtkRenderWindow::New();
63 renWin->AddRenderer(ren1);
64 renWin->SetSize(301,300);
65 vtkRenderWindowInteractor *iren=vtkRenderWindowInteractor::New();
66 iren->SetRenderWindow(renWin);
67
68 renWin->Render();
69
70 vtkGPUVolumeRayCastMapper *volumeMapper;
71 vtkVolumeProperty *volumeProperty;
72 vtkVolume *volume;
73
74 volumeMapper=vtkGPUVolumeRayCastMapper::New();
75 volumeMapper->SetBlendModeToComposite();
76 volumeMapper->SetInputConnection(
77 mag->GetOutputPort());
78
79 vtkPiecewiseFunction *opacity=vtkPiecewiseFunction::New();
80 opacity->AddPoint(0,0);
81 opacity->AddPoint(255,1);
82
83 volumeProperty=vtkVolumeProperty::New();
84 volumeProperty->IndependentComponentsOff();
85 volumeProperty->ShadeOff();
86 volumeProperty->SetScalarOpacity(opacity);
87
88 volume=vtkVolume::New();
89 volume->SetMapper(volumeMapper);
90 volume->SetProperty(volumeProperty);
91 ren1->AddViewProp(volume);
92
93 int valid=volumeMapper->IsRenderSupported(renWin,volumeProperty);
94
95 int retVal;
96 if(valid)
97 {
98 iren->Initialize();
99 ren1->SetBackground(0.1,0.4,0.2);
100 ren1->ResetCamera();
101 renWin->Render();
102
103 retVal = vtkTesting::Test(argc, argv, renWin, 75);
104 if (retVal == vtkRegressionTester::DO_INTERACTOR)
105 {
106 iren->Start();
107 }
108 }
109 else
110 {
111 retVal=vtkTesting::PASSED;
112 cout << "Required extensions not supported." << endl;
113 }
114
115 iren->Delete();
116 renWin->Delete();
117 ren1->Delete();
118 volumeMapper->Delete();
119 volumeProperty->Delete();
120 volume->Delete();
121
122 opacity->Delete();
123 mag->Delete();
124
125 reader->Delete();
126
127 if ((retVal == vtkTesting::PASSED) || (retVal == vtkTesting::DO_INTERACTOR))
128 {
129 return 0;
130 }
131 else
132 {
133 return 1;
134 }
135 }
136