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/*=========================================================================
Program: ParaView
Module: vtkPVColorMaterialHelper.h
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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.
=========================================================================*/
// .NAME vtkPVColorMaterialHelper - a helper to assist in similating the
// ColorMaterial behaviour of the default OpenGL pipeline.
// .SECTION Description
// vtkPVColorMaterialHelper is a helper to assist in similating the
// ColorMaterial behaviour of the default OpenGL pipeline. Look at
// vtkPVColorMaterialHelper_s for available GLSL functions.
#ifndef vtkPVColorMaterialHelper_h
#define vtkPVColorMaterialHelper_h
#include "vtkObject.h"
class vtkShaderProgram2;
class VTK_EXPORT vtkPVColorMaterialHelper : public vtkObject
{
public:
static vtkPVColorMaterialHelper* New();
vtkTypeMacro(vtkPVColorMaterialHelper, vtkObject);
void PrintSelf(ostream& os, vtkIndent indent);
void Initialize(vtkShaderProgram2*);
vtkGetObjectMacro(Shader, vtkShaderProgram2);
// Description:
// Prepares the shader i.e. reads color material paramters state from OpenGL.
// This must be called before the shader is bound.
void PrepareForRendering();
// Description:
// Uploads any uniforms needed. This must be called only
// after the shader has been bound, but before rendering the geometry.
void Render();
protected:
vtkPVColorMaterialHelper();
~vtkPVColorMaterialHelper();
void SetShader(vtkShaderProgram2*);
vtkShaderProgram2* Shader;
enum eMaterialParamater
{
DISABLED = 0,
AMBIENT = 1,
DIFFUSE = 2,
SPECULAR = 3,
AMBIENT_AND_DIFFUSE = 4,
EMISSION = 5
};
eMaterialParamater Mode;
private:
vtkPVColorMaterialHelper(const vtkPVColorMaterialHelper&) VTK_DELETE_FUNCTION;
void operator=(const vtkPVColorMaterialHelper&) VTK_DELETE_FUNCTION;
};
#endif
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