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/*=========================================================================
Program: Visualization Toolkit
Module: vtkOSPRayWindowNode.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkOSPRayWindowNode.h"
#include "vtkCollectionIterator.h"
#include "vtkFloatArray.h"
#include "vtkOSPRayPass.h"
#include "vtkOSPRayRendererNode.h"
#include "vtkOSPRayViewNodeFactory.h"
#include "vtkObjectFactory.h"
#include "vtkRenderWindow.h"
#include "vtkRendererCollection.h"
#include "vtkUnsignedCharArray.h"
#include "RTWrapper/RTWrapper.h"
//============================================================================
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkOSPRayWindowNode);
//------------------------------------------------------------------------------
vtkOSPRayWindowNode::vtkOSPRayWindowNode()
{
vtkOSPRayPass::RTInit();
vtkOSPRayViewNodeFactory* fac = vtkOSPRayViewNodeFactory::New();
this->SetMyFactory(fac);
fac->Delete();
}
//------------------------------------------------------------------------------
vtkOSPRayWindowNode::~vtkOSPRayWindowNode()
{
vtkOSPRayPass::RTShutdown();
}
//------------------------------------------------------------------------------
void vtkOSPRayWindowNode::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
//------------------------------------------------------------------------------
void vtkOSPRayWindowNode::Render(bool prepass)
{
if (!vtkOSPRayPass::IsSupported())
{
static bool warned = false;
if (!warned)
{
vtkWarningMacro(<< "Ignoring render request because OSPRay is not supported.");
warned = true;
}
return;
}
if (!prepass)
{
// composite all renderers framebuffers together
this->ColorBuffer->SetNumberOfComponents(4);
this->ColorBuffer->SetNumberOfTuples(this->Size[0] * this->Size[1]);
unsigned char* rgba = static_cast<unsigned char*>(this->ColorBuffer->GetVoidPointer(0));
this->ZBuffer->SetNumberOfComponents(1);
this->ZBuffer->SetNumberOfTuples(this->Size[0] * this->Size[1]);
float* z = static_cast<float*>(this->ZBuffer->GetVoidPointer(0));
auto const& renderers = this->GetChildren();
int layer = 0;
int count = 0;
while (count < static_cast<int>(renderers.size()))
{
for (auto node : renderers)
{
vtkOSPRayRendererNode* child = vtkOSPRayRendererNode::SafeDownCast(node);
vtkRenderer* ren = vtkRenderer::SafeDownCast(child->GetRenderable());
if (ren->GetLayer() == layer)
{
child->WriteLayer(rgba, z, this->Size[0], this->Size[1], layer);
count++;
}
}
layer++;
}
}
}
VTK_ABI_NAMESPACE_END
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