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OpenVRTessellatedBoxSource

vtk-examples/Cxx/GeometricObjects/OpenVRTessellatedBoxSource


Description

VTK + OpenVR TessellatedBoxSource example.

Question

If you have a question about this example, please use the VTK Discourse Forum

Code

OpenVRTessellatedBoxSource.cxx

#include <vtkActor.h>
#include <vtkCamera.h>
#include <vtkDataSetMapper.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkProperty.h>
#include <vtkOpenVRRenderWindow.h>
#include <vtkOpenVRRenderer.h>
#include <vtkOpenVRRenderWindowInteractor.h>
#include <vtkShrinkFilter.h>
#include <vtkTessellatedBoxSource.h>

int main(int /* argc */, char * /* argv */[])
{
  double bounds[6];
  bounds[0] = -10.0; bounds[1] = 10.0;
  bounds[2] = 10.0; bounds[3] = 20.0;
  bounds[4] = -5.0; bounds[5] = 5.0;

  vtkNew<vtkTessellatedBoxSource> boxSource;
  boxSource->SetLevel(3);
  boxSource->QuadsOn();
  boxSource->SetBounds(bounds);
  boxSource->SetOutputPointsPrecision(vtkAlgorithm::SINGLE_PRECISION);

  vtkNew<vtkShrinkFilter> shrink;
  shrink->SetInputConnection(boxSource->GetOutputPort());
  shrink->SetShrinkFactor(.8);

  //Create a mapper and actor
  vtkNew<vtkNamedColors> colors;

  vtkNew<vtkDataSetMapper> mapper;
  mapper->SetInputConnection(shrink->GetOutputPort());

  vtkNew<vtkProperty> back;
  back->SetColor(colors->GetColor3d("Tomato").GetData());

  vtkNew<vtkActor> actor;
  actor->SetMapper(mapper);
  actor->GetProperty()->EdgeVisibilityOn();
  actor->GetProperty()->SetColor(colors->GetColor3d("Banana").GetData());
  actor->SetBackfaceProperty(back);

  //Create a renderer, render window, and interactor
  vtkNew<vtkOpenVRRenderer> renderer;
  vtkNew<vtkOpenVRRenderWindow> renderWindow;
  renderWindow->AddRenderer(renderer);
  renderWindow->SetWindowName("OpenVRTessellatedBoxSource");
  vtkNew<vtkOpenVRRenderWindowInteractor> renderWindowInteractor;
  renderWindowInteractor->SetRenderWindow(renderWindow);

  //Add the actors to the scene
  renderer->AddActor(actor);
  renderer->SetBackground(colors->GetColor3d("Silver").GetData());

  renderer->ResetCamera();
  renderer->GetActiveCamera()->Azimuth(30);
  renderer->GetActiveCamera()->Elevation(30);
  renderer->ResetCameraClippingRange();

  //Render and interact
  renderWindow->SetSize(640, 480);
  renderWindow->Render();
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(OpenVRTessellatedBoxSource)

find_package(VTK COMPONENTS 
  vtkCommonColor
  vtkCommonCore
  vtkFiltersGeneral
  vtkFiltersSources
  vtkInteractionStyle
  vtkRenderingContextOpenGL2
  vtkRenderingCore
  vtkRenderingFreeType
  vtkRenderingGL2PSOpenGL2
  vtkRenderingOpenGL2
  vtkRenderingOpenVR
  QUIET
)

if (NOT VTK_FOUND)
  message("Skipping OpenVRTessellatedBoxSource: ${VTK_NOT_FOUND_MESSAGE}")
  return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
  # old system
  include(${VTK_USE_FILE})
  add_executable(OpenVRTessellatedBoxSource MACOSX_BUNDLE OpenVRTessellatedBoxSource.cxx )
  target_link_libraries(OpenVRTessellatedBoxSource PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(OpenVRTessellatedBoxSource MACOSX_BUNDLE OpenVRTessellatedBoxSource.cxx )
  target_link_libraries(OpenVRTessellatedBoxSource PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS OpenVRTessellatedBoxSource
    MODULES ${VTK_LIBRARIES}
    )
endif ()

Download and Build OpenVRTessellatedBoxSource

Click here to download OpenVRTessellatedBoxSource and its CMakeLists.txt file. Once the tarball OpenVRTessellatedBoxSource.tar has been downloaded and extracted,

cd OpenVRTessellatedBoxSource/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:

./OpenVRTessellatedBoxSource

WINDOWS USERS

Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.