bool Viewport::HandleEvent(const SDL_Event& event)
{
switch (event.type) {
case SDL_VIDEORESIZE:
m_Width = event.resize.w;
m_Height = event.resize.h;
// TODO: Flag reset frustum
SetFrustum( m_Width, m_Height );
break;
default: break;
}
return false;
}
LUAMTA_FUNCTION(camera, SetFrustum)
{
auto self = my->ToCameraPtr(1);
self->SetFrustum(
my->ToNumber(2, gEnv->pRenderer->GetWidth()),
my->ToNumber(3, gEnv->pRenderer->GetHeight()),
my->ToNumber(4, DEFAULT_FOV),
my->ToNumber(5, DEFAULT_NEAR),
my->ToNumber(6, DEFAULT_FAR),
my->ToNumber(7, 1.0f)
);
return 0;
}
Camera::Camera()
{
aspect=640.0f/480.0f;
pitch=0.0f;
SetSpeed(5.0f,10000.0f,10000.0f,10000.0f);
SetFrustum(0.1f, 100.0f, 67.0f);
forward=vec4(0.0f,0.0f,-1.0f,0.0f);
right=vec4(1.0f,0.0f,0.0f,0.0f);
up=vec4(0.0f,1.0f,0.0f,0.0f);
position=vec3(0.0f,0.0f,5.0f);
CreateProjectionMat();
CreateViewMat();
}
Camera::Camera(int width, int height)
{
aspect=(float)width/(float)height;
pitch=0.0f;
yaw=0.0f;
roll=0.0f;
SetSpeed(100.0f,10000.0f,10000.0f,10000.0f);
SetFrustum(0.1f, 100.0f, 67.0f);
forward=vec4(0.0f,0.0f,-1.0f,0.0f);
right=vec4(1.0f,0.0f,0.0f,0.0f);
up=vec4(0.0f,1.0f,0.0f,0.0f);
position=vec3(0.0f,0.0f,0.0f);
CreateProjectionMat();
CreateViewMat();
}
Camera::Camera()
{
right = Vector3f(1, 0, 0);
up = Vector3f(0, 1, 0);
forward = Vector3f(0, 0, -1);
position = Vector3f(0, 20, 3);
float aspectRatio = 4.0/3.0f;
fLeft = -1.0 * aspectRatio;;
fRight = 1.0 * aspectRatio;;
fBottom = -1.0;
fTop = 1.0;
fNear = 0.2f;
fFar = 100.0f;
yaw = 0.0f;
pitch = 0.0f;
SetFrustum(PI/4.0f, aspectRatio, fNear, fFar);
}
// where is CCamera::SetFov(float fov)???
LUAMTA_FUNCTION(camera, SetFov)
{
auto self = my->ToCameraPtr(1);
int x = 0;
int y = 0;
int w = 0;
int h = 0;
self->GetViewPort(x, y, w, h);
self->SetFrustum(
my->ToNumber(1, h),
my->ToNumber(2, w),
my->ToNumber(3, my->ToNumber(2)),
my->ToNumber(4, self->GetNearPlane()),
my->ToNumber(5, self->GetFarPlane()),
my->ToNumber(6, self->GetPixelAspectRatio())
);
return 0;
}
//---------------------------------
//
//---------------------------------
void Matrix4::SetPerspective(float fovy, float aspect, float near, float far)
{
float height = near * static_cast<float>( DegTan( fovy / 2 ) );
float width = height * aspect;
SetFrustum( -width, width, -height, height, near, far );
}
void PickCallbackFunction(vtkObject* caller, long unsigned int vtkNotUsed(eventId),
void* clientData, void* vtkNotUsed(callData))
{
vtkAreaPicker *areaPicker = static_cast<vtkAreaPicker*>(caller);
iARenderer *ren = static_cast<iARenderer*>(clientData);
ren->GetRenderWindow()->GetRenderers()->GetFirstRenderer()->RemoveActor(ren->selectedActor);
auto extractSelection = vtkSmartPointer<vtkExtractSelectedFrustum>::New();
extractSelection->SetInputData(0, ren->getRenderObserver()->GetImageData());
extractSelection->PreserveTopologyOff();
extractSelection->SetFrustum(areaPicker->GetFrustum());
extractSelection->Update();
if (!extractSelection->GetOutput()->GetNumberOfElements(vtkUnstructuredGrid::CELL))
{
ren->emitNoSelectedCells();
return;
}
if (ren->GetInteractor()->GetControlKey() &&
!ren->GetInteractor()->GetShiftKey())
{
// Adds cells to selection
auto append = vtkSmartPointer<vtkAppendFilter>::New();
append->AddInputData(ren->finalSelection);
append->AddInputData(extractSelection->GetOutput());
append->Update();
ren->finalSelection->ShallowCopy(append->GetOutput());
}
else if (ren->GetInteractor()->GetControlKey() &&
ren->GetInteractor()->GetShiftKey())
{
// Removes cells from selection
auto newfinalSel = vtkSmartPointer<vtkUnstructuredGrid>::New();
newfinalSel->Allocate(1, 1);
newfinalSel->SetPoints(ren->finalSelection->GetPoints());
auto currSel = vtkSmartPointer<vtkUnstructuredGrid>::New();
currSel->ShallowCopy(extractSelection->GetOutput());
double f_Cell[DIM] = { 0,0,0 }, c_Cell[DIM] = { 0,0,0 };
double* spacing = ren->getRenderObserver()->GetImageData()->GetSpacing();
for (vtkIdType i = 0; i < ren->finalSelection->GetNumberOfCells(); ++i)
{
bool addCell = true;
GetCellCenter(ren->finalSelection, i, f_Cell, spacing);
for (vtkIdType j = 0; j < currSel->GetNumberOfCells(); ++j)
{
GetCellCenter(currSel, j, c_Cell, spacing);
if (f_Cell[0] == c_Cell[0] &&
f_Cell[1] == c_Cell[1] &&
f_Cell[2] == c_Cell[2])
{
addCell = false;
break;
}
}
if (addCell)
newfinalSel->InsertNextCell(ren->finalSelection->GetCell(i)->GetCellType(),
ren->finalSelection->GetCell(i)->GetPointIds());
}
ren->finalSelection->ShallowCopy(newfinalSel);
}
else
{
// New selection
ren->finalSelection->ShallowCopy(extractSelection->GetOutput());
}
ren->selectedMapper->Update();
ren->GetRenderWindow()->GetRenderers()->GetFirstRenderer()->AddActor(ren->selectedActor);
ren->emitSelectedCells(ren->finalSelection);
}
Viewport::Viewport( int width, int height )
: m_Width(width)
, m_Height(height)
{
SetFrustum( width, height );
}
