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blender-archive/source/blender/blenlib/BLI_voxel.h
Campbell Barton c434782e3a File headers: SPDX License migration
Use a shorter/simpler license convention, stops the header taking so
much space.

Follow the SPDX license specification: https://spdx.org/licenses

- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile

While most of the source tree has been included

- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
  use different header conventions.

doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.

See P2788 for the script that automated these edits.

Reviewed By: brecht, mont29, sergey

Ref D14069
2022-02-11 09:14:36 +11:00

32 lines
1005 B
C++

/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
#pragma once
/** \file
* \ingroup bli
*/
#ifdef __cplusplus
extern "C" {
#endif
/** Calculate 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(const float *data, const int res[3], const float co[3]);
float BLI_voxel_sample_trilinear(const float *data, const int res[3], const float co[3]);
float BLI_voxel_sample_triquadratic(const float *data, const int res[3], const float co[3]);
float BLI_voxel_sample_tricubic(const float *data,
const int res[3],
const float co[3],
int bspline);
#ifdef __cplusplus
}
#endif