LayeredRenderers
VTKExamples/Cxx/WishList/Visualization/LayeredRenderers
Code
LayeredRenderers.cxx
#include <vtkSphereSource.h>
#include <vtkTransform.h>
#include <vtkPolyData.h>
#include <vtkSmartPointer.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkVectorText.h>
int main(int, char *[])
{
// Create a sphere
vtkSmartPointer<vtkSphereSource> sphereSource =
vtkSmartPointer<vtkSphereSource>::New();
sphereSource->Update();
vtkSmartPointer<vtkPolyDataMapper> sphereMapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
sphereMapper->SetInputConnection(sphereSource->GetOutputPort());
vtkSmartPointer<vtkActor> sphereActor =
vtkSmartPointer<vtkActor>::New();
sphereActor->SetMapper(sphereMapper);
// Create text
vtkSmartPointer<vtkVectorText> textSource =
vtkSmartPointer<vtkVectorText>::New();
textSource->SetText("TEXT");
textSource->Update();
vtkSmartPointer<vtkPolyDataMapper> textMapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
textMapper->SetInputConnection(textSource->GetOutputPort());
vtkSmartPointer<vtkActor> textActor =
vtkSmartPointer<vtkActor>::New();
textActor->SetMapper(textMapper);
vtkSmartPointer<vtkRenderer> renderer1 =
vtkSmartPointer<vtkRenderer>::New();
renderer1->SetLayer(0);
vtkSmartPointer<vtkRenderer> renderer2 =
vtkSmartPointer<vtkRenderer>::New();
renderer2->SetActiveCamera(renderer1->GetActiveCamera());
renderer2->SetLayer(1);
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer1);
renderWindow->AddRenderer(renderer2);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
renderer1->AddActor(sphereActor);
renderer2->AddActor(textActor);
renderWindow->SetNumberOfLayers(2);
renderer1->ResetCamera();
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(LayeredRenderers)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(LayeredRenderers MACOSX_BUNDLE LayeredRenderers.cxx)
target_link_libraries(LayeredRenderers ${VTK_LIBRARIES})
Download and Build LayeredRenderers
Click here to download LayeredRenderers and its CMakeLists.txt file. Once the tarball LayeredRenderers.tar has been downloaded and extracted,
cd LayeredRenderers/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./LayeredRenderers
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.