42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
/**
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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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* The Original Code is: all of this file.
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*
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* Contributor(s): Matt Ebb, Raul Fernandez Hernandez (Farsthary).
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef BLI_VOXEL_H
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#define BLI_VOXEL_H
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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 V_I(x, y, z, res) ( (z)*(res)[1]*(res)[0] + (y)*(res)[0] + (x) )
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/* all input coordinates must be in bounding box 0.0 - 1.0 */
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float voxel_sample_nearest(float *data, int *res, float *co);
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float voxel_sample_trilinear(float *data, int *res, float *co);
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float voxel_sample_triquadratic(float *data, int *res, float *co);
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float voxel_sample_tricubic(float *data, int *res, float *co, int bspline);
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#endif /* BLI_VOXEL_H */
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