EnvironmentMapShader.h

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//    Copyright 2004-2019, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    H3D API is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
#ifndef __ENVIRONMENTMAPSHADER_H__
#define __ENVIRONMENTMAPSHADER_H__
 
#include <H3D/H3DGeneratedFragmentShaderNode.h>
#include <H3D/X3DTexture2DNode.h>
#include <H3D/X3DEnvironmentTextureNode.h>
#include <H3D/SFMatrix4f.h>
 
namespace H3D {
 
  class EnvironmentMapShader : 
    public H3DGeneratedFragmentShaderNode {
  public:
 
    typedef DependentSFNode< X3DEnvironmentTextureNode, 
                             FieldRef< H3DDisplayListObject,
                                       H3DDisplayListObject::DisplayList,
                                       &H3DDisplayListObject::displayList >, 
                             true >
    SFEnvironmentTextureNode;
 
    EnvironmentMapShader( Inst< DisplayList  > _displayList = 0,
                          Inst< SFNode       > _metadata    = 0,
                          Inst< SFBool       > _isSelected  = 0,
                          Inst< SFBool       > _isValid     = 0,
                          Inst< SFBool       > _activate    = 0,
                          Inst< SFString     > _language    = 0,
                          Inst< MFShaderPart > _parts       = 0,
                          Inst< SFBool       > _suppressUniformWarnings = 0,
                          Inst< MFString     > _fragmentShaderString = 0,
                          Inst< MFString     > _vertexShaderString = 0,
                          Inst< SFEnvironmentTextureNode > _environmentMap = 0,
                          Inst< SFFloat                  > _fresnel = 0,
                          Inst< SFString     > _type = 0 );
    
    H3DUniquePtr< SFEnvironmentTextureNode > environmentMap;
 
    H3DUniquePtr< SFFloat > fresnel;
 
    H3DUniquePtr< SFString > type;
 
    static H3DNodeDatabase database;
 
  protected:
    virtual string addUniformFields( ComposedShader *shader );
 
    virtual void getVaryingVariables( vector< VaryingVariable > &variables );
 
    virtual string getFragmentShaderString();
 
  };
}
 
#endif