23 lines
620 B
C++
23 lines
620 B
C++
/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup bli
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*/
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namespace blender {
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/** Calculate 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_trilinear(const float *data, const int res[3], const float co[3]);
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} // namespace blender
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