geomDrawCallbackData.cxx

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/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file geomDrawCallbackData.cxx
 * @author drose
 * @date 2009-03-13
 */
 
#include "geomDrawCallbackData.h"
#include "cullableObject.h"
#include "graphicsStateGuardianBase.h"
 
TypeHandle GeomDrawCallbackData::_type_handle;
 
/**
 *
 */
void GeomDrawCallbackData::
output(std::ostream &out) const {
  out << get_type() << "(" << (void *)_obj << ", " << (void *)_gsg
      << ", " << _force << ")";
}
 
/**
 * You should make this call during the callback if you want to continue the
 * normal rendering function that would have been done in the absence of a
 * callback.
 *
 * Specifically, this method will add the Geoms in this node to the list of
 * renderable objects for drawing.  If this callback was made on a
 * CallbackNode, it doesn't actually do anything, since only a GeomNode holds
 * geoms.
 */
void GeomDrawCallbackData::
upcall() {
  // Go ahead and draw the object, if we have one.
  if (_obj->_geom != nullptr) {
    if (_lost_state) {
      // Tell the GSG to forget its state.
      _gsg->clear_state_and_transform();
    }
 
    _obj->_geom->draw(_gsg, _obj->_munged_data, _force,
                      Thread::get_current_thread());
  }
}