/*
* 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) 2001-2002 by NaN Holding BV.
* All rights reserved.
*/
#ifndef __BLI_VOXEL_H__
#define __BLI_VOXEL_H__
/** \file
* \ingroup bli
*/
/** find the index number of a voxel, given x/y/z integer coords and resolution vector */
#define BLI_VOXEL_INDEX(x, y, z, res) \
((int64_t)(x) + (int64_t)(y) * (int64_t)(res)[0] + \
(int64_t)(z) * (int64_t)(res)[0] * (int64_t)(res)[1])
/* all input coordinates must be in bounding box 0.0 - 1.0 */
float BLI_voxel_sample_nearest(float *data, const int res[3], const float co[3]);
float BLI_voxel_sample_trilinear(float *data, const int res[3], const float co[3]);
float BLI_voxel_sample_triquadratic(float *data, const int res[3], const float co[3]);
float BLI_voxel_sample_tricubic(float *data, const int res[3], const float co[3], int bspline);
#endif /* __BLI_VOXEL_H__ */