/usr/share/vtk/Rendering/Cxx/DiffuseSpheres.cxx is in vtk-examples 5.8.0-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | /*=========================================================================
Program: Visualization Toolkit
Module: DiffuseSpheres.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
//
// This examples demonstrates the effect of diffuse lighting.
//
#include "vtkSmartPointer.h"
#include "vtkSphereSource.h"
#include "vtkPolyDataMapper.h"
#include "vtkActor.h"
#include "vtkRenderer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkProperty.h"
#include "vtkCamera.h"
#include "vtkLight.h"
int main()
{
// The following lines create a sphere represented by polygons.
//
vtkSmartPointer<vtkSphereSource> sphere = vtkSmartPointer<vtkSphereSource>::New();
sphere->SetThetaResolution(100);
sphere->SetPhiResolution(50);
// The mapper is responsible for pushing the geometry into the graphics
// library. It may also do color mapping, if scalars or other attributes
// are defined.
//
vtkSmartPointer<vtkPolyDataMapper> sphereMapper = vtkSmartPointer<vtkPolyDataMapper>::New();
sphereMapper->SetInputConnection(sphere->GetOutputPort());
// The actor is a grouping mechanism: besides the geometry (mapper), it
// also has a property, transformation matrix, and/or texture map.
// In this example we create eight different spheres (two rows of four
// spheres) and set the specular lighting coefficients. A little ambient
// is turned on so the sphere is not completely black on the back side.
//
vtkSmartPointer<vtkActor> sphere1 = vtkSmartPointer<vtkActor>::New();
sphere1->SetMapper(sphereMapper);
sphere1->GetProperty()->SetColor(1,0,0);
sphere1->GetProperty()->SetAmbient(0.3);
sphere1->GetProperty()->SetDiffuse(0.0);
sphere1->GetProperty()->SetSpecular(0.0);
sphere1->GetProperty()->SetSpecularPower(5.0);
vtkSmartPointer<vtkActor> sphere2 = vtkSmartPointer<vtkActor>::New();
sphere2->SetMapper(sphereMapper);
sphere2->GetProperty()->SetColor(1,0,0);
sphere2->GetProperty()->SetAmbient(0.3);
sphere2->GetProperty()->SetDiffuse(0.125);
sphere2->GetProperty()->SetSpecular(0.0);
sphere2->GetProperty()->SetSpecularPower(10.0);
sphere2->AddPosition(1.25,0,0);
vtkSmartPointer<vtkActor> sphere3 = vtkSmartPointer<vtkActor>::New();
sphere3->SetMapper(sphereMapper);
sphere3->GetProperty()->SetColor(1,0,0);
sphere3->GetProperty()->SetAmbient(0.3);
sphere3->GetProperty()->SetDiffuse(0.25);
sphere3->GetProperty()->SetSpecular(0.0);
sphere3->AddPosition(2.5,0,0);
vtkSmartPointer<vtkActor> sphere4 = vtkSmartPointer<vtkActor>::New();
sphere4->SetMapper(sphereMapper);
sphere4->GetProperty()->SetColor(1,0,0);
sphere4->GetProperty()->SetAmbient(0.3);
sphere4->GetProperty()->SetDiffuse(0.375);
sphere4->GetProperty()->SetSpecular(0.0);
sphere4->AddPosition(3.75,0,0);
vtkSmartPointer<vtkActor> sphere5 = vtkSmartPointer<vtkActor>::New();
sphere5->SetMapper(sphereMapper);
sphere5->GetProperty()->SetColor(1,0,0);
sphere5->GetProperty()->SetAmbient(0.3);
sphere5->GetProperty()->SetDiffuse(0.5);
sphere5->GetProperty()->SetSpecular(0.0);
sphere5->AddPosition(0.0,1.25,0);
vtkSmartPointer<vtkActor> sphere6 = vtkSmartPointer<vtkActor>::New();
sphere6->SetMapper(sphereMapper);
sphere6->GetProperty()->SetColor(1,0,0);
sphere6->GetProperty()->SetAmbient(0.3);
sphere6->GetProperty()->SetDiffuse(0.625);
sphere6->GetProperty()->SetSpecular(0.0);
sphere6->AddPosition(1.25,1.25,0);
vtkSmartPointer<vtkActor> sphere7 = vtkSmartPointer<vtkActor>::New();
sphere7->SetMapper(sphereMapper);
sphere7->GetProperty()->SetColor(1,0,0);
sphere7->GetProperty()->SetAmbient(0.3);
sphere7->GetProperty()->SetDiffuse(0.75);
sphere7->GetProperty()->SetSpecular(0.0);
sphere7->AddPosition(2.5,1.25,0);
vtkSmartPointer<vtkActor> sphere8 = vtkSmartPointer<vtkActor>::New();
sphere8->SetMapper(sphereMapper);
sphere8->GetProperty()->SetColor(1,0,0);
sphere8->GetProperty()->SetAmbient(0.3);
sphere8->GetProperty()->SetDiffuse(0.875);
sphere8->GetProperty()->SetSpecular(0.0);
sphere8->AddPosition(3.75,1.25,0);
// Create the graphics structure. The renderer renders into the
// render window. The render window interactor captures mouse events
// and will perform appropriate camera or actor manipulation
// depending on the nature of the events.
//
vtkSmartPointer<vtkRenderer> ren1 = vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renWin = vtkSmartPointer<vtkRenderWindow>::New();
renWin->AddRenderer(ren1);
vtkSmartPointer<vtkRenderWindowInteractor> iren = vtkSmartPointer<vtkRenderWindowInteractor>::New();
iren->SetRenderWindow(renWin);
// Add the actors to the renderer, set the background and size.
//
ren1->AddActor(sphere1);
ren1->AddActor(sphere2);
ren1->AddActor(sphere3);
ren1->AddActor(sphere4);
ren1->AddActor(sphere5);
ren1->AddActor(sphere6);
ren1->AddActor(sphere7);
ren1->AddActor(sphere8);
ren1->SetBackground(0.1, 0.2, 0.4);
renWin->SetSize(400, 200);
// Set up the lighting.
//
vtkSmartPointer<vtkLight> light = vtkSmartPointer<vtkLight>::New();
light->SetFocalPoint(1.875,0.6125,0);
light->SetPosition(0.875,1.6125,1);
ren1->AddLight(light);
// We want to eliminate perspective effects on the apparent lighting.
// Parallel camera projection will be used. To zoom in parallel projection
// mode, the ParallelScale is set.
//
ren1->GetActiveCamera()->SetFocalPoint(0,0,0);
ren1->GetActiveCamera()->SetPosition(0,0,1);
ren1->GetActiveCamera()->SetViewUp(0,1,0);
ren1->GetActiveCamera()->ParallelProjectionOn();
ren1->ResetCamera();
ren1->GetActiveCamera()->SetParallelScale(1.5);
// This starts the event loop and invokes an initial render.
//
iren->Initialize();
iren->Start();
return EXIT_SUCCESS;
}
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