I’m writing a project recently that needs to achieve VR effect. I’m going to use vtkOpenXRRenderWindow to implement it, but I had a problem when I used the official demo( Rendering/OpenXR/Testing/Cxx/TestOpenXRInitialization.cxx · v9.2.0 · VTK / VTK · GitLab (kitware.com)) for testing:
Connect oculus headset and run demo. I can only see the set background color in the headset, without any objects. Warning：No rendered is displayed in the prompt window.
I don’t know what caused it. Does anyone know the reason?
Details are as follows:
#include "vtkCullerCollection.h"
#include "vtkLight.h"
#include "vtkNew.h"
#include "vtkOpenGLPolyDataMapper.h"
#include "vtkOpenGLVertexBufferObject.h"
#include "vtkOpenXRCamera.h"
#include "vtkOpenXRRenderWindow.h"
#include "vtkOpenXRRenderWindowInteractor.h"
#include "vtkOpenXRRenderer.h"
#include "vtkPLYReader.h"
#include "vtkProperty.h"
#include "vtkRegressionTestImage.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkTestUtilities.h"
#include "vtkTransform.h"
#include "vtkTransformPolyDataFilter.h"
#include <memory>
int main()
{
vtkNew<vtkOpenXRRenderer> renderer;
renderer->SetShowFloor(true);
vtkNew<vtkOpenXRRenderWindow> renderWindow;
vtkNew<vtkOpenXRRenderWindowInteractor> iren;
vtkNew<vtkOpenXRCamera> cam;
renderer->SetBackground(0.2, 0.3, 0.4);
renderWindow->AddRenderer(renderer);
vtkNew<vtkActor> actor;
renderer->AddActor(actor);
iren->SetRenderWindow(renderWindow);
renderer->SetActiveCamera(cam);
renderer->RemoveCuller(renderer->GetCullers()->GetLastItem());
vtkNew<vtkLight> light;
light->SetLightTypeToSceneLight();
light->SetPosition(1.0, 1.0, 1.0);
renderer->AddLight(light);
std::string filename = "D:/file/bunny/reconstruction/bun_zipper_res4.ply";
vtkSmartPointer<vtkPLYReader> reader = vtkSmartPointer<vtkPLYReader>::New();
reader->SetFileName(filename.c_str());
vtkNew<vtkTransform> trans;
trans->Translate(20.0, 0.0, 0.0);
trans->Scale(0.001, 0.001, 0.001);
vtkNew<vtkTransformPolyDataFilter> tf;
tf->SetOutputPointsPrecision(vtkAlgorithm::DOUBLE_PRECISION);
tf->SetTransform(trans);
tf->SetInputConnection(reader->GetOutputPort());
vtkNew<vtkOpenGLPolyDataMapper> mapper;
mapper->SetInputConnection(tf->GetOutputPort());
mapper->SetVBOShiftScaleMethod(vtkOpenGLVertexBufferObject::AUTO_SHIFT_SCALE);
actor->SetMapper(mapper);
actor->GetProperty()->SetAmbientColor(0.2, 0.2, 1.0);
actor->GetProperty()->SetDiffuseColor(1.0, 0.65, 0.7);
actor->GetProperty()->SetSpecularColor(1.0, 1.0, 1.0);
actor->GetProperty()->SetSpecular(0.5);
actor->GetProperty()->SetDiffuse(0.7);
actor->GetProperty()->SetAmbient(0.5);
actor->GetProperty()->SetSpecularPower(20.0);
actor->GetProperty()->SetOpacity(1.0);
renderer->ResetCamera();
iren->Start();
return 0;
}