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/*=========================================================================
Program: Visualization Toolkit
Module: vtkOSPRayVolumeMapperNode.h
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.
=========================================================================*/
/**
* @class vtkOSPRayVolumeMapperNode
* @brief links vtkVolumeMapper to OSPRay
*
* Translates vtkVolumeMapper state into OSPRay rendering calls
*/
#ifndef vtkOSPRayVolumeMapperNode_h
#define vtkOSPRayVolumeMapperNode_h
#include "vtkOSPRayCache.h" // For common cache infrastructure
#include "vtkRenderingRayTracingModule.h" // For export macro
#include "vtkVolumeMapperNode.h"
#include "RTWrapper/RTWrapper.h" // for handle types
VTK_ABI_NAMESPACE_BEGIN
class vtkDataArray;
class vtkDataSet;
class vtkVolume;
class VTKRENDERINGRAYTRACING_EXPORT vtkOSPRayVolumeMapperNode : public vtkVolumeMapperNode
{
public:
static vtkOSPRayVolumeMapperNode* New();
vtkTypeMacro(vtkOSPRayVolumeMapperNode, vtkVolumeMapperNode);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Make ospray calls to render me.
*/
void Render(bool prepass) override;
/**
* TODO: fix me
* should be controlled by VTK SampleDistance, otherwise
* should use macros and modify self.
*/
void SetSamplingRate(double rate) { this->SamplingRate = rate; }
double GetSamplingRate() { return this->SamplingRate; }
protected:
vtkOSPRayVolumeMapperNode();
~vtkOSPRayVolumeMapperNode() override;
/**
* updates internal OSPRay transfer function for volume
*/
void UpdateTransferFunction(RTW::Backend* be, vtkVolume* vol, double* dataRange = nullptr);
// TODO: SetAndGetters?
int NumColors;
double SamplingRate;
double SamplingStep; // base sampling step of each voxel
vtkTimeStamp BuildTime;
vtkTimeStamp PropertyTime;
vtkDataArray* LastArray;
int LastComponent;
OSPVolume OSPRayVolume;
OSPVolumetricModel OSPRayVolumeModel;
OSPGeometricModel Cropper;
OSPTransferFunction TransferFunction;
OSPInstance OSPRayInstance;
std::vector<float> TFVals;
std::vector<float> TFOVals;
vtkOSPRayCache<vtkOSPRayCacheItemObject>* Cache;
private:
vtkOSPRayVolumeMapperNode(const vtkOSPRayVolumeMapperNode&) = delete;
void operator=(const vtkOSPRayVolumeMapperNode&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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