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cybglbackgroundc.h

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/*
Copyright (C) 1999  Carsten Winkelholz

Malte Weiß, 29.07.2002: OpenGL fully implemented.

Address:  FGAN Forschungsgesellschaft für Angewandte Naturwissenschaften e. V.
      Neuenahrer Str. 20
      D - 53343 Wachtberg
      
Email:    winkelholz@fgan.de

This program 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.

This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/


#ifndef CYBGLBACKGROUNDC_H
#define CYBGLBACKGROUNDC_H

#include "oaw/ctk/cybbackgroundc.h"
#include "oaw/ctk/vertexc.h"
#include <GL/glut.h>
#include "../oawconfig.h"

OAW_BEGIN_NAMESPACE

// Structure for a background sphere vertex

typedef struct _BgSphereVertex
{
  Vector3C n;       // Normal
  Vector3C p;       // Position
  double u, v;      // Texture Coordinates
  SFColor cSky;     // Sky color
  SFColor cGround;  // Ground solor
} BgSphereVertex;

// Class definition

class OAW_DLLMAPPING CybGLBackgroundC : public CybBackgroundC
{
public:
  CybGLBackgroundC(CybWorldC*);
  CybGLBackgroundC(const CybGLBackgroundC&);
  CybGLBackgroundC&operator=(const CybGLBackgroundC&);  
  virtual ~CybGLBackgroundC();


  virtual void FinishInit();
  void Render(CybChannelC*, long lFlag);

protected:
  void Cleanup();
  virtual void PrepareRender();

protected:
  short m_bSphere, m_bCube;

  static long  m_lPhic;
  static long  m_lTetac;

  // Background box
  static StandardVertex m_CubeVertices[24];

  // Background sphere
  BgSphereVertex *m_pSphereVertices;
  GLuint         *m_pSphereIndices;
  long           m_lNumSphereVertices;
  long           m_lNumSphereIndices;
};

OAW_END_NAMESPACE


#endif

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