1 /*=========================================================================
2
3 Program: Visualization Toolkit
4
5 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
6 All rights reserved.
7 See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
8
9 This software is distributed WITHOUT ANY WARRANTY; without even
10 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
11 PURPOSE. See the above copyright notice for more information.
12
13 =========================================================================*/
14 // test baking shadow maps
15 //
16 // The command line arguments are:
17 // -I => run in interactive mode; unless this is used, the program will
18 // not allow interaction and exit
19
20 #include "vtkActor.h"
21 #include "vtkCamera.h"
22 #include "vtkCameraPass.h"
23 #include "vtkCellArray.h"
24 #include "vtkLight.h"
25 #include "vtkNew.h"
26 #include "vtkOpenGLRenderer.h"
27 #include "vtkOpenGLTexture.h"
28 #include "vtkPLYReader.h"
29 #include "vtkPlaneSource.h"
30 #include "vtkPolyDataMapper.h"
31 #include "vtkProperty.h"
32 #include "vtkRegressionTestImage.h"
33 #include "vtkRenderPassCollection.h"
34 #include "vtkRenderStepsPass.h"
35 #include "vtkRenderWindow.h"
36 #include "vtkRenderWindowInteractor.h"
37 #include "vtkRenderer.h"
38 #include "vtkSequencePass.h"
39 #include "vtkShadowMapBakerPass.h"
40 #include "vtkShadowMapPass.h"
41 #include "vtkTestUtilities.h"
42 #include "vtkTimerLog.h"
43
44 //----------------------------------------------------------------------------
TestShadowMapPass(int argc,char * argv[])45 int TestShadowMapPass(int argc, char *argv[])
46 {
47 vtkNew<vtkRenderer> renderer;
48 renderer->SetBackground(0.3, 0.4, 0.6);
49 vtkNew<vtkRenderWindow> renderWindow;
50 renderWindow->SetSize(600, 600);
51 renderWindow->AddRenderer(renderer);
52 vtkNew<vtkRenderWindowInteractor> iren;
53 iren->SetRenderWindow(renderWindow);
54
55 vtkNew<vtkLight> light1;
56 light1->SetFocalPoint(0,0,0);
57 light1->SetPosition(0,1,0.2);
58 light1->SetColor(0.95,0.97,1.0);
59 light1->SetIntensity(0.8);
60 renderer->AddLight(light1);
61
62 vtkNew<vtkLight> light2;
63 light2->SetFocalPoint(0,0,0);
64 light2->SetPosition(1.0,1.0,1.0);
65 light2->SetColor(1.0,0.8,0.7);
66 light2->SetIntensity(0.3);
67 renderer->AddLight(light2);
68
69 const char* fileName =
70 vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/dragon.ply");
71 vtkNew<vtkPLYReader> reader;
72 reader->SetFileName(fileName);
73 reader->Update();
74
75 delete [] fileName;
76
77 vtkNew<vtkPolyDataMapper> mapper;
78 mapper->SetInputConnection(reader->GetOutputPort());
79
80 vtkNew<vtkActor> actor;
81 actor->SetMapper(mapper);
82 actor->GetProperty()->SetAmbientColor(0.135, 0.2225, 0.3);
83 actor->GetProperty()->SetDiffuseColor(0.54, 0.89, 0.63);
84 actor->GetProperty()->SetSpecularColor(1.0, 1.0, 1.0);
85 actor->GetProperty()->SetSpecular(0.51);
86 actor->GetProperty()->SetDiffuse(0.7);
87 actor->GetProperty()->SetAmbient(0.7);
88 actor->GetProperty()->SetSpecularPower(30.0);
89 actor->GetProperty()->SetOpacity(1.0);
90 renderer->AddActor(actor);
91 //actor->GetProperty()->SetRepresentationToWireframe();
92
93 // add a plane
94 vtkNew<vtkPlaneSource> plane;
95 const double *plybounds = mapper->GetBounds();
96 plane->SetOrigin(-0.2, plybounds[2], -0.2);
97 plane->SetPoint1( 0.2, plybounds[2], -0.2);
98 plane->SetPoint2(-0.2, plybounds[2], 0.2);
99 vtkNew<vtkPolyDataMapper> planeMapper;
100 planeMapper->SetInputConnection(plane->GetOutputPort());
101 vtkNew<vtkActor> planeActor;
102 planeActor->SetMapper(planeMapper);
103 renderer->AddActor(planeActor);
104
105 renderWindow->SetMultiSamples(0);
106
107 vtkNew<vtkShadowMapPass> shadows;
108
109 vtkNew<vtkSequencePass> seq;
110 vtkNew<vtkRenderPassCollection> passes;
111 passes->AddItem(shadows->GetShadowMapBakerPass());
112 passes->AddItem(shadows);
113 seq->SetPasses(passes);
114
115 vtkNew<vtkCameraPass> cameraP;
116 cameraP->SetDelegatePass(seq);
117
118 // tell the renderer to use our render pass pipeline
119 vtkOpenGLRenderer *glrenderer =
120 vtkOpenGLRenderer::SafeDownCast(renderer);
121 glrenderer->SetPass(cameraP);
122
123 vtkNew<vtkTimerLog> timer;
124 timer->StartTimer();
125 renderWindow->Render();
126 timer->StopTimer();
127 double firstRender = timer->GetElapsedTime();
128 cerr << "first render time: " << firstRender << endl;
129
130 timer->StartTimer();
131 int numRenders = 8;
132 for (int i = 0; i < numRenders; ++i)
133 {
134 renderer->GetActiveCamera()->Azimuth(80.0/numRenders);
135 renderer->GetActiveCamera()->Elevation(80.0/numRenders);
136 renderWindow->Render();
137 }
138 timer->StopTimer();
139 double elapsed = timer->GetElapsedTime();
140 cerr << "interactive render time: " << elapsed / numRenders << endl;
141 unsigned int numTris = reader->GetOutput()->GetPolys()->GetNumberOfCells();
142 cerr << "number of triangles: " << numTris << endl;
143 cerr << "triangles per second: " << numTris*(numRenders/elapsed) << endl;
144
145 renderer->GetActiveCamera()->SetPosition(-0.2,0.2,1);
146 renderer->GetActiveCamera()->SetFocalPoint(0,0,0);
147 renderer->GetActiveCamera()->SetViewUp(0,1,0);
148 renderer->GetActiveCamera()->OrthogonalizeViewUp();
149 renderer->ResetCamera();
150 renderer->GetActiveCamera()->Zoom(2.5);
151 renderWindow->Render();
152
153 int retVal = vtkRegressionTestImage( renderWindow );
154 if ( retVal == vtkRegressionTester::DO_INTERACTOR)
155 {
156 iren->Start();
157 }
158
159 return !retVal;
160 }
161