EnvMapNode.cc

/*===========================================================================*\
 *                                                                           *
 *                              OpenFlipper                                  *
 *      Copyright (C) 2001-2009 by Computer Graphics Group, RWTH Aachen      *
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 *  This file is part of OpenFlipper.                                        *
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\*===========================================================================*/

/*===========================================================================*\
 *                                                                           *
 *   $Revision: 6743 $                                                       *
 *   $Author: moebius $                                                      *
 *   $Date: 2009-08-05 11:03:10 +0200 (Mi, 05. Aug 2009) $                   *
 *                                                                           *
\*===========================================================================*/




//=============================================================================
//
//  CLASS EnvMapNode - IMPLEMENTATION
//
//=============================================================================


//== INCLUDES =================================================================


#include "EnvMapNode.hh"
#include "DrawModes.hh"


//== NAMESPACES ===============================================================


namespace ACG {
namespace SceneGraph {


//== IMPLEMENTATION ==========================================================


EnvMapNode::EnvMapNode( BaseNode*            _parent,
                        const std::string&   _name ,
                        bool                _texture_repeat,
                        GLint               _texture_filter)
  : TextureNode(_parent, _name,_texture_repeat,_texture_filter)
{}


//----------------------------------------------------------------------------


unsigned int EnvMapNode::availableDrawModes() const
{
  return ACG::SceneGraph::DrawModes::SOLID_ENV_MAPPED;
}


//----------------------------------------------------------------------------


void EnvMapNode::enter(GLState& _state, unsigned int _drawmode)
{
  if (_drawmode==DrawModes::SOLID_ENV_MAPPED)
  {
    TextureNode::enter(_state, _drawmode);
    glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
    glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_SPHERE_MAP);
    glEnable(GL_TEXTURE_GEN_S);
    glEnable(GL_TEXTURE_GEN_T);
    glEnable(GL_TEXTURE_2D);
  } else
    TextureNode::enter( _state, _drawmode);
}


//----------------------------------------------------------------------------


void EnvMapNode::leave(GLState& _state, unsigned int _drawmode)
{
  if (_drawmode==DrawModes::SOLID_ENV_MAPPED)
  {
    TextureNode::leave(_state, _drawmode);
    glDisable(GL_TEXTURE_GEN_S);
    glDisable(GL_TEXTURE_GEN_T);
    glDisable(GL_TEXTURE_2D);
  } else
    TextureNode::leave( _state, _drawmode);
}

void EnvMapNode::enterPick(GLState& /*_state*/ ,
                           PickTarget /*_target*/,
                           unsigned int /*_drawMode*/ ) {

}

void EnvMapNode::leavePick(GLState& /*_state*/,
                           PickTarget /*_target*/,
                           unsigned int /*_drawMode*/ ) {
}


//=============================================================================
} // namespace SceneGraph
} // namespace ACG
//=============================================================================