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vtkOSPRayCompositePolyDataMapper2Node.cxx
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vtkOSPRayCompositePolyDataMapper2Node.cxx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkOSPRayCompositePolyDataMapper2Node.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 "vtkOSPRayCompositePolyDataMapper2Node.h"
#include "vtkActor.h"
#include "vtkCompositeDataDisplayAttributes.h"
#include "vtkCompositePolyDataMapper2.h"
#include "vtkMultiBlockDataSet.h"
#include "vtkMultiPieceDataSet.h"
#include "vtkOSPRayActorNode.h"
#include "vtkOSPRayRendererNode.h"
#include "vtkPolyData.h"
#include "vtkProperty.h"
#include "vtkSmartPointer.h"
//============================================================================
vtkStandardNewMacro(vtkOSPRayCompositePolyDataMapper2Node);
//----------------------------------------------------------------------------
vtkOSPRayCompositePolyDataMapper2Node::vtkOSPRayCompositePolyDataMapper2Node()
{
}
//----------------------------------------------------------------------------
vtkOSPRayCompositePolyDataMapper2Node::~vtkOSPRayCompositePolyDataMapper2Node()
{
}
//----------------------------------------------------------------------------
void vtkOSPRayCompositePolyDataMapper2Node::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
//----------------------------------------------------------------------------
void vtkOSPRayCompositePolyDataMapper2Node::Invalidate(bool prepass)
{
if (prepass)
{
this->RenderTime = 0;
}
}
//----------------------------------------------------------------------------
void vtkOSPRayCompositePolyDataMapper2Node::Render(bool prepass)
{
if (prepass)
{
// we use a lot of params from our parent
vtkOSPRayActorNode *aNode = vtkOSPRayActorNode::SafeDownCast(this->Parent);
vtkActor *act = vtkActor::SafeDownCast(aNode->GetRenderable());
if (act->GetVisibility() == false)
{
return;
}
vtkOSPRayRendererNode *orn =
static_cast<vtkOSPRayRendererNode *>(
this->GetFirstAncestorOfType("vtkOSPRayRendererNode"));
//if there are no changes, just reuse last result
vtkMTimeType inTime = aNode->GetMTime();
if (this->RenderTime >= inTime)
{
this->AddMeshesToModel(orn->GetOModel());
return;
}
this->RenderTime = inTime;
//something changed so make new meshes
this->CreateNewMeshes();
vtkProperty* prop = act->GetProperty();
// Push base-values on the state stack.
this->BlockState.Visibility.push(true);
this->BlockState.Opacity.push(prop->GetOpacity());
this->BlockState.AmbientColor.push(vtkColor3d(prop->GetAmbientColor()));
this->BlockState.DiffuseColor.push(vtkColor3d(prop->GetDiffuseColor()));
this->BlockState.SpecularColor.push(vtkColor3d(prop->GetSpecularColor()));
const char *mname = prop->GetMaterialName();
if (mname != nullptr)
{
this->BlockState.Material.push(std::string(mname));
} else {
this->BlockState.Material.push(std::string(""));
}
// render using the composite data attributes
unsigned int flat_index = 0;
vtkCompositePolyDataMapper2 *cpdm =
vtkCompositePolyDataMapper2::SafeDownCast(act->GetMapper());
vtkDataObject * dobj = nullptr;
if (cpdm)
{
dobj = cpdm->GetInputDataObject(0, 0);
if (dobj)
{
this->RenderBlock(orn, cpdm, act, dobj, flat_index);
}
}
this->BlockState.Visibility.pop();
this->BlockState.Opacity.pop();
this->BlockState.AmbientColor.pop();
this->BlockState.DiffuseColor.pop();
this->BlockState.SpecularColor.pop();
this->BlockState.Material.pop();
}
}
//-----------------------------------------------------------------------------
void vtkOSPRayCompositePolyDataMapper2Node::RenderBlock(
vtkOSPRayRendererNode *orn,
vtkCompositePolyDataMapper2 *cpdm,
vtkActor *actor,
vtkDataObject *dobj,
unsigned int &flat_index)
{
vtkCompositeDataDisplayAttributes* cda = cpdm->GetCompositeDataDisplayAttributes();
vtkProperty *prop = actor->GetProperty();
// bool draw_surface_with_edges =
// (prop->GetEdgeVisibility() && prop->GetRepresentation() == VTK_SURFACE);
vtkColor3d ecolor(prop->GetEdgeColor());
bool overrides_visibility = (cda && cda->HasBlockVisibility(dobj));
if (overrides_visibility)
{
this->BlockState.Visibility.push(cda->GetBlockVisibility(dobj));
}
bool overrides_opacity = (cda && cda->HasBlockOpacity(dobj));
if (overrides_opacity)
{
this->BlockState.Opacity.push(cda->GetBlockOpacity(dobj));
}
bool overrides_color = (cda && cda->HasBlockColor(dobj));
if (overrides_color)
{
vtkColor3d color = cda->GetBlockColor(dobj);
this->BlockState.AmbientColor.push(color);
this->BlockState.DiffuseColor.push(color);
this->BlockState.SpecularColor.push(color);
}
bool overrides_material = (cda && cda->HasBlockMaterial(dobj));
if (overrides_material)
{
std::string material = cda->GetBlockMaterial(dobj);
this->BlockState.Material.push(material);
}
// Advance flat-index. After this point, flat_index no longer points to this
// block.
flat_index++;
vtkMultiBlockDataSet *mbds = vtkMultiBlockDataSet::SafeDownCast(dobj);
vtkMultiPieceDataSet *mpds = vtkMultiPieceDataSet::SafeDownCast(dobj);
if (mbds || mpds)
{
unsigned int numChildren = mbds? mbds->GetNumberOfBlocks() :
mpds->GetNumberOfPieces();
for (unsigned int cc=0 ; cc < numChildren; cc++)
{
vtkDataObject* child = mbds ? mbds->GetBlock(cc) : mpds->GetPiece(cc);
if (child == nullptr)
{
// speeds things up when dealing with nullptr blocks (which is common with
// AMRs).
flat_index++;
continue;
}
this->RenderBlock(orn, cpdm, actor, child, flat_index);
}
}
else if (dobj && this->BlockState.Visibility.top() == true && this->BlockState.Opacity.top() > 0.0)
{
// do we have a entry for this dataset?
// make sure we have an entry for this dataset
vtkPolyData *ds = vtkPolyData::SafeDownCast(dobj);
if (ds)
{
vtkOSPRayActorNode *aNode = vtkOSPRayActorNode::SafeDownCast(this->Parent);
vtkColor3d &aColor = this->BlockState.AmbientColor.top();
vtkColor3d &dColor = this->BlockState.DiffuseColor.top();
std::string &material = this->BlockState.Material.top();
cpdm->ClearColorArrays(); //prevents reuse of stale color arrays
this->ORenderPoly(
orn->GetORenderer(), orn->GetOModel(),
aNode, ds,
aColor.GetData(),
dColor.GetData(),
this->BlockState.Opacity.top(),
material);
}
}
if (overrides_color)
{
this->BlockState.AmbientColor.pop();
this->BlockState.DiffuseColor.pop();
this->BlockState.SpecularColor.pop();
}
if (overrides_opacity)
{
this->BlockState.Opacity.pop();
}
if (overrides_visibility)
{
this->BlockState.Visibility.pop();
}
if (overrides_material)
{
this->BlockState.Material.pop();
}
}