vtkOSPRayLightNode.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkOSPRayLightNode.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.

=========================================================================*/
#ifndef vtkOSPRayLightNode_h
#define vtkOSPRayLightNode_h

#include "vtkRenderingOSPRayModule.h" // For export macro
#include "vtkLightNode.h"

#include "ospray/ospray.h" // for ospray handle types

#include <string> // for std::string

class vtkInformationDoubleKey;
class vtkInformationIntegerKey;
class vtkLight;
class vtkOSPRayRendererNode;

class VTKRENDERINGOSPRAY_EXPORT vtkOSPRayLightNode :
  public vtkLightNode
{
public:
  static vtkOSPRayLightNode* New();
  vtkTypeMacro(vtkOSPRayLightNode, vtkLightNode);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  virtual void Render(bool prepass) override;


  static void SetLightScale(double s);
  static double GetLightScale();

  //state beyond rendering core...

  static vtkInformationIntegerKey* IS_AMBIENT();


  static void SetIsAmbient(int, vtkLight *);
  static int GetIsAmbient(vtkLight *);

  static vtkInformationDoubleKey* RADIUS();


  static void SetRadius(double, vtkLight *);
  static double GetRadius(vtkLight *);

  static OSPLight NewLight(vtkOSPRayRendererNode *orn,
                           OSPRenderer oRenderer,
                           const std::string& lightType);

protected:
  vtkOSPRayLightNode();
  ~vtkOSPRayLightNode();

private:
  vtkOSPRayLightNode(const vtkOSPRayLightNode&) = delete;
  void operator=(const vtkOSPRayLightNode&) = delete;

  static double LightScale;
  void *OLight;
};

#endif