OpenVRCone

VTKExamples/Cxx/GeometricObjects/OpenVRCone


Description

This example demonstrates rendering of a Coner in OpenVR.

Question

If you have a simple question about this example contact us at VTKExamplesProject If your question is more complex and may require extended discussion, please use the VTK Discourse Forum

Code

OpenVRCone.cxx

#include <vtkConeSource.h>
#include <vtkPolyData.h>
#include <vtkSmartPointer.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkOpenVRRenderWindow.h>
#include <vtkOpenVRRenderer.h>
#include <vtkOpenVRRenderWindowInteractor.h>
#include <vtkNamedColors.h>
#include <vtkProperty.h>
// Chethana B 
// Organisation: Virtual Environments Lab, Chung-Ang Univeristy, Seoul. 
int main(int, char *[])
{
  //Create a cone
  vtkSmartPointer<vtkConeSource> coneSource = vtkSmartPointer<vtkConeSource>::New();
  coneSource->Update();

  //Create a mapper and actor
  vtkSmartPointer<vtkNamedColors> colors = vtkSmartPointer<vtkNamedColors>::New();
  vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputConnection(coneSource->GetOutputPort());

  vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);

  //Create a renderer, render window, and interactor
  vtkSmartPointer<vtkOpenVRRenderer> renderer = vtkSmartPointer<vtkOpenVRRenderer>::New();
  vtkSmartPointer<vtkOpenVRRenderWindow> renderWindow = vtkSmartPointer<vtkOpenVRRenderWindow>::New();
  renderWindow->AddRenderer(renderer);
  vtkSmartPointer<vtkOpenVRRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkOpenVRRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);

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

  //Render and interact
  renderWindow->Render();
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(OpenVRCone)

find_package(VTK COMPONENTS 
  vtkCommonColor
  vtkCommonCore
  vtkCommonDataModel
  vtkFiltersSources
  vtkInteractionStyle
  vtkRenderingCore
  vtkRenderingFreeType
  vtkRenderingOpenGL2
  vtkRenderingOpenVR QUIET)
if (NOT VTK_FOUND)
  message("Skipping OpenVRCone: ${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(OpenVRCone MACOSX_BUNDLE OpenVRCone.cxx )
  target_link_libraries(OpenVRCone PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(OpenVRCone MACOSX_BUNDLE OpenVRCone.cxx )
  target_link_libraries(OpenVRCone PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS OpenVRCone
    MODULES ${VTK_LIBRARIES}
    )
endif () 

Download and Build OpenVRCone

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

cd OpenVRCone/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:

./OpenVRCone

WINDOWS USERS

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