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/*=========================================================================
Program: Visualization Toolkit
Module: vtkLightingMapPass.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 "vtkLightingMapPass.h"
#include "vtkClearRGBPass.h"
#include "vtkInformation.h"
#include "vtkInformationIntegerKey.h"
#include "vtkObjectFactory.h"
#include "vtkProp.h"
#include "vtkRenderer.h"
#include "vtkRenderState.h"
#include "vtkSmartPointer.h"
#include <cassert>
vtkStandardNewMacro(vtkLightingMapPass);
vtkInformationKeyMacro(vtkLightingMapPass, RENDER_LUMINANCE, Integer);
vtkInformationKeyMacro(vtkLightingMapPass, RENDER_NORMALS, Integer);
// ----------------------------------------------------------------------------
vtkLightingMapPass::vtkLightingMapPass()
{
this->RenderType = LUMINANCE;
}
// ----------------------------------------------------------------------------
vtkLightingMapPass::~vtkLightingMapPass()
{
}
// ----------------------------------------------------------------------------
void vtkLightingMapPass::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os,indent);
}
// ----------------------------------------------------------------------------
// Description:
// Perform rendering according to a render state \p s.
// \pre s_exists: s!=0
void vtkLightingMapPass::Render(const vtkRenderState *s)
{
assert("pre: s_exists" && s != 0);
// Render filtered geometry according to our keys
this->NumberOfRenderedProps = 0;
this->RenderOpaqueGeometry(s);
}
// ----------------------------------------------------------------------------
// Description:
// Opaque pass with key checking.
// \pre s_exists: s!=0
void vtkLightingMapPass::RenderOpaqueGeometry(const vtkRenderState *s)
{
assert("pre: s_exists" && s!=0);
// Clear the RGB buffer first
vtkSmartPointer<vtkClearRGBPass> clear =
vtkSmartPointer<vtkClearRGBPass>::New();
clear->Render(s);
int c = s->GetPropArrayCount();
int i = 0;
while (i < c)
{
vtkProp *p = s->GetPropArray()[i];
vtkSmartPointer<vtkInformation> keys = p->GetPropertyKeys();
if (!keys)
{
keys.TakeReference(vtkInformation::New());
}
switch (this->GetRenderType())
{
case LUMINANCE:
keys->Set(vtkLightingMapPass::RENDER_LUMINANCE(), 1);
break;
case NORMALS:
keys->Set(vtkLightingMapPass::RENDER_NORMALS(), 1);
break;
}
p->SetPropertyKeys(keys);
int rendered =
p->RenderOpaqueGeometry(s->GetRenderer());
this->NumberOfRenderedProps += rendered;
++i;
}
// Remove keys
i = 0;
while (i < c)
{
vtkProp *p = s->GetPropArray()[i];
vtkInformation *keys = p->GetPropertyKeys();
switch (this->GetRenderType())
{
case LUMINANCE:
keys->Remove(vtkLightingMapPass::RENDER_LUMINANCE());
break;
case NORMALS:
keys->Remove(vtkLightingMapPass::RENDER_NORMALS());
break;
}
p->SetPropertyKeys(keys);
++i;
}
}
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