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/*=========================================================================
Program: Visualization Toolkit
Module: vtkOpenGLVolumeRGBTable.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 "vtkOpenGLVolumeRGBTable.h"
#include "vtkColorTransferFunction.h"
#include "vtkObjectFactory.h"
#include "vtkOpenGLRenderWindow.h"
#include "vtkTextureObject.h"
VTK_ABI_NAMESPACE_BEGIN
vtkStandardNewMacro(vtkOpenGLVolumeRGBTable);
//------------------------------------------------------------------------------
vtkOpenGLVolumeRGBTable::vtkOpenGLVolumeRGBTable()
{
this->NumberOfColorComponents = 3;
}
//------------------------------------------------------------------------------
void vtkOpenGLVolumeRGBTable::InternalUpdate(vtkObject* func, int vtkNotUsed(blendMode),
double vtkNotUsed(sampleDistance), double vtkNotUsed(unitDistance), int filterValue)
{
vtkColorTransferFunction* scalarRGB = vtkColorTransferFunction::SafeDownCast(func);
if (!scalarRGB)
{
return;
}
scalarRGB->GetTable(this->LastRange[0], this->LastRange[1], this->TextureWidth, this->Table);
this->TextureObject->SetWrapS(vtkTextureObject::ClampToEdge);
this->TextureObject->SetWrapT(vtkTextureObject::ClampToEdge);
this->TextureObject->SetMagnificationFilter(filterValue);
this->TextureObject->SetMinificationFilter(filterValue);
this->TextureObject->Create2DFromRaw(
this->TextureWidth, 1, this->NumberOfColorComponents, VTK_FLOAT, this->Table);
}
//------------------------------------------------------------------------------
void vtkOpenGLVolumeRGBTable::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
VTK_ABI_NAMESPACE_END
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