48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*/
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#ifndef __BLI_VOXEL_H__
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#define __BLI_VOXEL_H__
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/** \file
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* \ingroup bli
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Find the index number of a voxel, given x/y/z integer coords and resolution vector. */
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#define BLI_VOXEL_INDEX(x, y, z, res) \
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((int64_t)(x) + (int64_t)(y) * (int64_t)(res)[0] + \
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(int64_t)(z) * (int64_t)(res)[0] * (int64_t)(res)[1])
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/* all input coordinates must be in bounding box 0.0 - 1.0 */
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float BLI_voxel_sample_nearest(float *data, const int res[3], const float co[3]);
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float BLI_voxel_sample_trilinear(float *data, const int res[3], const float co[3]);
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float BLI_voxel_sample_triquadratic(float *data, const int res[3], const float co[3]);
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float BLI_voxel_sample_tricubic(float *data, const int res[3], const float co[3], int bspline);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __BLI_VOXEL_H__ */
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