288 lines
7.6 KiB
C
288 lines
7.6 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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* Contributor(s): Campbell Barton
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/modifiers/intern/MOD_meshcache.c
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* \ingroup modifiers
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*/
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#include <stdio.h>
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#include "DNA_scene_types.h"
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#include "DNA_object_types.h"
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#include "BLI_utildefines.h"
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#include "BLI_string.h"
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#include "BLI_path_util.h"
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#include "BLI_math.h"
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#include "BKE_DerivedMesh.h"
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#include "BKE_scene.h"
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#include "BKE_global.h"
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#include "BKE_main.h"
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#include "MEM_guardedalloc.h"
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#include "MOD_meshcache_util.h" /* utility functions */
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#include "MOD_modifiertypes.h"
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#include "MOD_util.h"
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static void initData(ModifierData *md)
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{
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MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md;
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mcmd->flag = 0;
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mcmd->type = MOD_MESHCACHE_TYPE_MDD;
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mcmd->interp = MOD_MESHCACHE_INTERP_LINEAR;
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mcmd->frame_scale = 1.0f;
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mcmd->factor = 1.0f;
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/* (Y, Z). Blender default */
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mcmd->forward_axis = 1;
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mcmd->up_axis = 2;
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}
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static void copyData(ModifierData *md, ModifierData *target)
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{
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MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md;
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MeshCacheModifierData *tmcmd = (MeshCacheModifierData *)target;
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tmcmd->flag = mcmd->flag;
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tmcmd->type = mcmd->type;
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tmcmd->time_mode = mcmd->time_mode;
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tmcmd->play_mode = mcmd->play_mode;
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tmcmd->forward_axis = mcmd->forward_axis;
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tmcmd->up_axis = mcmd->up_axis;
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tmcmd->flip_axis = mcmd->flip_axis;
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tmcmd->interp = mcmd->interp;
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tmcmd->frame_start = mcmd->frame_start;
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tmcmd->frame_scale = mcmd->frame_scale;
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tmcmd->factor = mcmd->factor;
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tmcmd->eval_frame = mcmd->eval_frame;
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tmcmd->eval_time = mcmd->eval_time;
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tmcmd->eval_factor = mcmd->eval_factor;
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BLI_strncpy(tmcmd->filepath, mcmd->filepath, sizeof(tmcmd->filepath));
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}
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static int dependsOnTime(ModifierData *md)
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{
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MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md;
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return (mcmd->play_mode == MOD_MESHCACHE_PLAY_CFEA);
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}
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static int isDisabled(ModifierData *md, int UNUSED(useRenderParams))
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{
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MeshCacheModifierData *mcmd = (MeshCacheModifierData *) md;
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/* leave it up to the modifier to check the file is valid on calculation */
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return (mcmd->factor <= 0.0f) || (mcmd->filepath[0] == '\0');
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}
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static void meshcache_do(
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MeshCacheModifierData *mcmd, Object *ob, DerivedMesh *UNUSED(dm),
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float (*vertexCos_Real)[3], int numVerts)
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{
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float (*vertexCos_Store)[3] = (mcmd->factor < 1.0f) ?
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MEM_mallocN(sizeof(*vertexCos_Store) * numVerts, __func__) : NULL;
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float (*vertexCos)[3] = vertexCos_Store ? vertexCos_Store : vertexCos_Real;
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Scene *scene = mcmd->modifier.scene;
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const float fps = FPS;
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char filepath[FILE_MAX];
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const char *err_str = NULL;
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bool ok;
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float time;
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/* -------------------------------------------------------------------- */
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/* Interpret Time (the reading functions also do some of this ) */
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if (mcmd->play_mode == MOD_MESHCACHE_PLAY_CFEA) {
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const float cfra = BKE_scene_frame_get(scene);
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switch (mcmd->time_mode) {
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case MOD_MESHCACHE_TIME_FRAME:
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{
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time = cfra;
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break;
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}
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case MOD_MESHCACHE_TIME_SECONDS:
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{
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time = cfra / fps;
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break;
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}
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case MOD_MESHCACHE_TIME_FACTOR:
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default:
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{
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time = cfra / fps;
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break;
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}
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}
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/* apply offset and scale */
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time = (mcmd->frame_scale * time) - mcmd->frame_start;
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}
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else { /* if (mcmd->play_mode == MOD_MESHCACHE_PLAY_EVAL) { */
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switch (mcmd->time_mode) {
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case MOD_MESHCACHE_TIME_FRAME:
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{
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time = mcmd->eval_frame;
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break;
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}
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case MOD_MESHCACHE_TIME_SECONDS:
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{
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time = mcmd->eval_time;
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break;
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}
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case MOD_MESHCACHE_TIME_FACTOR:
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default:
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{
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time = mcmd->eval_factor;
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break;
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}
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}
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}
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/* -------------------------------------------------------------------- */
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/* Read the File (or error out when the file is bad) */
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/* would be nice if we could avoid doing this _every_ frame */
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BLI_strncpy(filepath, mcmd->filepath, sizeof(filepath));
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BLI_path_abs(filepath, ID_BLEND_PATH(G.main, (ID *)ob));
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switch (mcmd->type) {
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case MOD_MESHCACHE_TYPE_MDD:
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ok = MOD_meshcache_read_mdd_times(filepath, vertexCos, numVerts,
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mcmd->interp, time, fps, mcmd->time_mode, &err_str);
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break;
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case MOD_MESHCACHE_TYPE_PC2:
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ok = MOD_meshcache_read_pc2_times(filepath, vertexCos, numVerts,
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mcmd->interp, time, fps, mcmd->time_mode, &err_str);
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break;
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default:
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ok = false;
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break;
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}
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/* -------------------------------------------------------------------- */
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/* Apply the transformation matrix (if needed) */
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if (UNLIKELY(err_str)) {
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modifier_setError(&mcmd->modifier, err_str);
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}
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else if (ok) {
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bool use_matrix = false;
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float mat[3][3];
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unit_m3(mat);
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if (mat3_from_axis_conversion(mcmd->forward_axis, mcmd->up_axis, 1, 2, mat)) {
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use_matrix = true;
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}
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if (mcmd->flip_axis) {
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float tmat[3][3];
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unit_m3(tmat);
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if (mcmd->flip_axis & (1 << 0)) tmat[0][0] = -1.0f;
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if (mcmd->flip_axis & (1 << 1)) tmat[1][1] = -1.0f;
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if (mcmd->flip_axis & (1 << 2)) tmat[2][2] = -1.0f;
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mul_m3_m3m3(mat, tmat, mat);
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use_matrix = true;
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}
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if (use_matrix) {
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int i;
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for (i = 0; i < numVerts; i++) {
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mul_m3_v3(mat, vertexCos[i]);
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}
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}
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}
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if (vertexCos_Store) {
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if (ok) {
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interp_vn_vn(*vertexCos_Real, *vertexCos_Store, mcmd->factor, numVerts * 3);
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}
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MEM_freeN(vertexCos_Store);
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}
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}
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static void deformVerts(ModifierData *md, Object *ob,
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DerivedMesh *derivedData,
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float (*vertexCos)[3],
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int numVerts,
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ModifierApplyFlag UNUSED(flag))
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{
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MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md;
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meshcache_do(mcmd, ob, derivedData, vertexCos, numVerts);
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}
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static void deformVertsEM(
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ModifierData *md, Object *ob, struct BMEditMesh *UNUSED(editData),
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DerivedMesh *derivedData, float (*vertexCos)[3], int numVerts)
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{
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MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md;
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meshcache_do(mcmd, ob, derivedData, vertexCos, numVerts);
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}
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ModifierTypeInfo modifierType_MeshCache = {
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/* name */ "Mesh Cache",
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/* structName */ "MeshCacheModifierData",
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/* structSize */ sizeof(MeshCacheModifierData),
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/* type */ eModifierTypeType_OnlyDeform,
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/* flags */ eModifierTypeFlag_AcceptsCVs |
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eModifierTypeFlag_SupportsEditmode,
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/* copyData */ copyData,
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/* deformVerts */ deformVerts,
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/* deformMatrices */ NULL,
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/* deformVertsEM */ deformVertsEM,
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/* deformMatricesEM */ NULL,
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/* applyModifier */ NULL,
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/* applyModifierEM */ NULL,
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/* initData */ initData,
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/* requiredDataMask */ NULL,
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/* freeData */ NULL,
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/* isDisabled */ isDisabled,
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/* updateDepgraph */ NULL,
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/* dependsOnTime */ dependsOnTime,
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/* dependsOnNormals */ NULL,
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/* foreachObjectLink */ NULL,
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/* foreachIDLink */ NULL,
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/* foreachTexLink */ NULL,
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};
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