107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
/*
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contributors: Matt Ebb
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef __BKE_OCEAN_H__
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#define __BKE_OCEAN_H__
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/** \file BKE_ocean.h
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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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typedef struct OceanResult {
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float disp[3];
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float normal[3];
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float foam;
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/* raw eigenvalues/vectors */
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float Jminus;
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float Jplus;
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float Eminus[3];
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float Eplus[3];
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} OceanResult;
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typedef struct OceanCache {
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struct ImBuf **ibufs_disp;
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struct ImBuf **ibufs_foam;
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struct ImBuf **ibufs_norm;
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const char *bakepath;
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const char *relbase;
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/* precalculated for time range */
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float *time;
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/* constant for time range */
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float wave_scale;
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float chop_amount;
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float foam_coverage;
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float foam_fade;
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int start;
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int end;
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int duration;
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int resolution_x;
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int resolution_y;
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int baked;
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} OceanCache;
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struct Ocean *BKE_ocean_add(void);
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void BKE_ocean_free_data(struct Ocean *oc);
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void BKE_ocean_free(struct Ocean *oc);
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void BKE_ocean_init(
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struct Ocean *o, int M, int N, float Lx, float Lz, float V, float l, float A, float w, float damp,
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float alignment, float depth, float time, short do_height_field, short do_chop, short do_normals, short do_jacobian, int seed);
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void BKE_ocean_simulate(struct Ocean *o, float t, float scale, float chop_amount);
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/* sampling the ocean surface */
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float BKE_ocean_jminus_to_foam(float jminus, float coverage);
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void BKE_ocean_eval_uv(struct Ocean *oc, struct OceanResult *ocr, float u, float v);
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void BKE_ocean_eval_uv_catrom(struct Ocean *oc, struct OceanResult *ocr, float u, float v);
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void BKE_ocean_eval_xz(struct Ocean *oc, struct OceanResult *ocr, float x, float z);
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void BKE_ocean_eval_xz_catrom(struct Ocean *oc, struct OceanResult *ocr, float x, float z);
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void BKE_ocean_eval_ij(struct Ocean *oc, struct OceanResult *ocr, int i, int j);
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/* ocean cache handling */
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struct OceanCache *BKE_ocean_init_cache(
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const char *bakepath, const char *relbase,
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int start, int end, float wave_scale,
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float chop_amount, float foam_coverage, float foam_fade, int resolution);
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void BKE_ocean_simulate_cache(struct OceanCache *och, int frame);
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void BKE_ocean_bake(struct Ocean *o, struct OceanCache *och, void (*update_cb)(void *, float progress, int *cancel), void *update_cb_data);
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void BKE_ocean_cache_eval_uv(struct OceanCache *och, struct OceanResult *ocr, int f, float u, float v);
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void BKE_ocean_cache_eval_ij(struct OceanCache *och, struct OceanResult *ocr, int f, int i, int j);
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void BKE_ocean_free_cache(struct OceanCache *och);
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#ifdef __cplusplus
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}
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#endif
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#endif
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