X3DBackgroundNode.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 __X3DBACKGROUNDNODE_H__
#define __X3DBACKGROUNDNODE_H__
 
#include <H3D/X3DBindableNode.h>
#include <H3D/H3DDisplayListObject.h>
#include <H3D/MFFloat.h>
#include <H3D/MFColor.h>
#include <H3D/SFMatrix4f.h>
#include <H3D/SFMatrix4d.h>
#include <H3D/SFFloat.h>
 
namespace H3D {
 
  class H3DAPI_API X3DBackgroundNode : 
    public X3DBindableNode {
  public:
    
    typedef H3DDisplayListObject::DisplayList DisplayList;
 
    X3DBackgroundNode( Inst< SFSetBind > _set_bind    = 0,
           Inst< SFNode    > _metadata    = 0,
           Inst< SFTime    > _bindTime    = 0,
           Inst< SFBool    > _isBound     = 0,
           Inst< DisplayList > _displayList = 0,
           Inst< MFFloat   > _groundAngle = 0,
           Inst< MFColor   > _groundColor = 0,
           Inst< MFFloat   > _skyAngle    = 0,
           Inst< MFColor   > _skyColor    = 0,
           Inst< SFFloat   > _transparency = 0);
 
    static inline X3DBackgroundNode *getActive() {
      return static_cast< X3DBackgroundNode * >
        ( X3DBindableNode::getActive( "X3DBackgroundNode" ) );
    }
 
    virtual void traverseSG( TraverseInfo &ti ) {
      X3DBindableNode::traverseSG( ti );
      if( localToGlobal->getValue() != ti.getAccForwardMatrix() ) {
        localToGlobal->setValue( ti.getAccForwardMatrix() );
      }
    }
 
    virtual void renderBackground();
 
    virtual RGBA glClearColor() {
      if( skyColor->size() == 1 ) {
        RGB c = skyColor->getValueByIndex( 0 );
        H3DFloat a = 1.0f - transparency->getValue();
        return RGBA( c.r*a, c.g*a, c.b*a, a );
      } else  {
        return RGBA( 0, 0, 0, 0 );
      }
    }
 
    virtual void render();
 
    H3DUniquePtr< DisplayList > displayList;
 
    H3DUniquePtr< MFFloat >  groundAngle;
 
 
    H3DUniquePtr< MFColor >  groundColor;
 
    H3DUniquePtr< MFFloat >  skyAngle;
 
    H3DUniquePtr< MFColor >  skyColor;
 
    H3DUniquePtr< SFFloat > transparency;
 
    static H3DNodeDatabase database;
  protected:
    H3DUniquePtr< SFMatrix4f > localToGlobal;
 
    H3DUniquePtr< SFMatrix4d > projectionMatrix;
 
 
    bool render_enabled;
  };
}
 
#endif