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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2009 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): André Pinto.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/render/intern/raytrace/rayobject_hint.h
* \ingroup render
*/
#ifndef __RAYOBJECT_HINT_H__
#define __RAYOBJECT_HINT_H__
#define HINT_RECURSE 1
#define HINT_ACCEPT 0
#define HINT_DISCARD -1
struct HintBB
{
float bb[6];
};
inline int hint_test_bb(HintBB *obj, float *Nmin, float *Nmax)
{
if (bb_fits_inside( Nmin, Nmax, obj->bb, obj->bb+3 ) )
return HINT_RECURSE;
else
return HINT_ACCEPT;
}
#if 0
struct HintFrustum
{
float co[3];
float no[4][3];
};
inline int hint_test_bb(HintFrustum &obj, float *Nmin, float *Nmax)
{
//if frustum inside BB
{
return HINT_RECURSE;
}
//if BB outside frustum
{
return HINT_DISCARD;
}
return HINT_ACCEPT;
}
#endif
#endif /* __RAYOBJECT_HINT_H__ */
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