diff options
author | Campbell Barton <ideasman42@gmail.com> | 2013-01-21 19:41:00 +0400 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2013-01-21 19:41:00 +0400 |
commit | caac27dcbc4fb652fbb417b4b312493b0ef0eea0 (patch) | |
tree | cb974c99dd41d9b15fdbe4518ea581d53ae6e666 /source/blender/modifiers/intern/MOD_meshcache.c | |
parent | 4c0ebedc66c849e2b019f3932bd2208dd9667428 (diff) |
mesh-cache deform modifier,
supports MDD and PC2 formats.
see wiki docs:
http://wiki.blender.org/index.php/Doc:2.6/Manual/Modifiers/Deform/Mesh_Cache
Diffstat (limited to 'source/blender/modifiers/intern/MOD_meshcache.c')
-rw-r--r-- | source/blender/modifiers/intern/MOD_meshcache.c | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/source/blender/modifiers/intern/MOD_meshcache.c b/source/blender/modifiers/intern/MOD_meshcache.c new file mode 100644 index 00000000000..c722eda28ec --- /dev/null +++ b/source/blender/modifiers/intern/MOD_meshcache.c @@ -0,0 +1,314 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Contributor(s): Campbell Barton + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/modifiers/intern/MOD_meshcache.c + * \ingroup modifiers + */ + +#include <stdio.h> + +#include "DNA_scene_types.h" +#include "DNA_object_types.h" + +#include "BLI_utildefines.h" +#include "BLI_string.h" +#include "BLI_path_util.h" +#include "BLI_math.h" + + +#include "BKE_DerivedMesh.h" +#include "BKE_scene.h" +#include "BKE_global.h" +#include "BKE_main.h" + +#include "MOD_meshcache_util.h" /* utility functions */ + +#include "MOD_modifiertypes.h" + +#include "MOD_util.h" + +/* -------------------------------------------------------------------- */ +/* Utility function shared by formats */ +void MOD_meshcache_calc_range(const float frame, const char interp, + const int frame_tot, + int r_index_range[2], float *r_factor) +{ + if (interp == MOD_MESHCACHE_INTERP_NONE) { + r_index_range[0] = r_index_range[1] = max_ii(0, min_ii(frame_tot - 1, (int)(floorf(frame) + 0.5f))); + *r_factor = 1.0f; /* dummy */ + } + else { + const float tframe = floorf(frame); + const float range = frame - tframe; + r_index_range[0] = (int)tframe; + if (range <= FRAME_SNAP_EPS) { + /* we're close enough not to need blending */ + r_index_range[1] = r_index_range[0]; + *r_factor = 1.0f; /* dummy */ + } + else { + /* blend between 2 frames */ + r_index_range[1] = r_index_range[0] + 1; + *r_factor = range; + } + + /* clamp */ + if ((r_index_range[0] >= frame_tot) || + (r_index_range[1] >= frame_tot)) + { + r_index_range[0] = r_index_range[1] = frame_tot - 1; + *r_factor = 1.0f; /* dummy */ + } + else if ((r_index_range[0] < 0) || + (r_index_range[1] < 0)) + { + r_index_range[0] = r_index_range[1] = 0; + *r_factor = 1.0f; /* dummy */ + } + } +} + + +/* -------------------------------------------------------------------- */ + +static void initData(ModifierData *md) +{ + MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md; + + mcmd->flag = 0; + mcmd->type = MOD_MESHCACHE_TYPE_MDD; + mcmd->interp = MOD_MESHCACHE_INTERP_LINEAR; + mcmd->frame_scale = 1.0f; + + /* (Y, Z). Blender default */ + mcmd->forward_axis = 1; + mcmd->up_axis = 2; +} + +static void copyData(ModifierData *md, ModifierData *target) +{ + MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md; + MeshCacheModifierData *tmcmd = (MeshCacheModifierData *)target; + + tmcmd->flag = mcmd->flag; + tmcmd->type = mcmd->type; + + tmcmd->time_mode = mcmd->time_mode; + tmcmd->play_mode = mcmd->play_mode; + + tmcmd->forward_axis = mcmd->forward_axis; + tmcmd->up_axis = mcmd->up_axis; + tmcmd->flip_axis = mcmd->flip_axis; + + tmcmd->interp = mcmd->interp; + + tmcmd->frame_start = mcmd->frame_start; + tmcmd->frame_scale = mcmd->frame_scale; + + tmcmd->eval_frame = mcmd->eval_frame; + tmcmd->eval_time = mcmd->eval_time; + tmcmd->eval_factor = mcmd->eval_factor; + + BLI_strncpy(tmcmd->filepath, mcmd->filepath, sizeof(tmcmd->filepath)); +} + +static int dependsOnTime(ModifierData *md) +{ + MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md; + return (mcmd->play_mode == MOD_MESHCACHE_PLAY_CFEA); +} + +static int isDisabled(ModifierData *md, int UNUSED(useRenderParams)) +{ + MeshCacheModifierData *mcmd = (MeshCacheModifierData *) md; + + /* leave it up to the modifier to check the file is valid on calculation */ + return (mcmd->filepath[0] == '\0'); +} + + +static void meshcache_do( + MeshCacheModifierData *mcmd, Object *ob, DerivedMesh *UNUSED(dm), + float (*vertexCos)[3], int numVerts) +{ + Scene *scene = mcmd->modifier.scene; + const float fps = FPS; + + char filepath[FILE_MAX]; + const char *err_str = NULL; + bool ok; + + float time; + + + /* -------------------------------------------------------------------- */ + /* Interpret Time (the reading functions also do some of this ) */ + if (mcmd->play_mode == MOD_MESHCACHE_PLAY_CFEA) { + const float cfra = BKE_scene_frame_get(scene); + + switch (mcmd->time_mode) { + case MOD_MESHCACHE_TIME_FRAME: + { + time = cfra; + break; + } + case MOD_MESHCACHE_TIME_SECONDS: + { + time = cfra / fps; + break; + } + case MOD_MESHCACHE_TIME_FACTOR: + default: + { + time = cfra / fps; + break; + } + } + + /* apply offset and scale */ + time = (mcmd->frame_scale * time) - mcmd->frame_start; + } + else { /* if (mcmd->play_mode == MOD_MESHCACHE_PLAY_EVAL) { */ + switch (mcmd->time_mode) { + case MOD_MESHCACHE_TIME_FRAME: + { + time = mcmd->eval_frame; + break; + } + case MOD_MESHCACHE_TIME_SECONDS: + { + time = mcmd->eval_time; + break; + } + case MOD_MESHCACHE_TIME_FACTOR: + default: + { + time = mcmd->eval_factor; + break; + } + } + } + + + /* -------------------------------------------------------------------- */ + /* Read the File (or error out when the file is bad) */ + + /* would be nice if we could avoid doing this _every_ frame */ + BLI_strncpy(filepath, mcmd->filepath, sizeof(filepath)); + BLI_path_abs(filepath, ID_BLEND_PATH(G.main, (ID *)ob)); + + switch (mcmd->type) { + case MOD_MESHCACHE_TYPE_MDD: + ok = MOD_meshcache_read_mdd_times(filepath, vertexCos, numVerts, + mcmd->interp, time, fps, mcmd->time_mode, &err_str); + break; + case MOD_MESHCACHE_TYPE_PC2: + ok = MOD_meshcache_read_pc2_times(filepath, vertexCos, numVerts, + mcmd->interp, time, fps, mcmd->time_mode, &err_str); + break; + default: + ok = false; + break; + } + + + /* -------------------------------------------------------------------- */ + /* Apply the transformation matrix (if needed) */ + if (UNLIKELY(err_str)) { + modifier_setError(&mcmd->modifier, err_str); + } + else if (ok) { + bool use_matrix = false; + float mat[3][3]; + unit_m3(mat); + + if (mat3_from_axis_conversion(mcmd->forward_axis, mcmd->up_axis, 1, 2, mat)) { + use_matrix = true; + } + + if (mcmd->flip_axis) { + float tmat[3][3]; + unit_m3(tmat); + if (mcmd->flip_axis & (1 << 0)) tmat[0][0] = -1.0f; + if (mcmd->flip_axis & (1 << 1)) tmat[1][1] = -1.0f; + if (mcmd->flip_axis & (1 << 2)) tmat[2][2] = -1.0f; + mul_m3_m3m3(mat, tmat, mat); + + use_matrix = true; + } + + if (use_matrix) { + int i; + for (i = 0; i < numVerts; i++) { + mul_m3_v3(mat, vertexCos[i]); + } + } + } +} + +static void deformVerts(ModifierData *md, Object *ob, + DerivedMesh *derivedData, + float (*vertexCos)[3], + int numVerts, + ModifierApplyFlag UNUSED(flag)) +{ + MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md; + + meshcache_do(mcmd, ob, derivedData, vertexCos, numVerts); +} + +static void deformVertsEM( + ModifierData *md, Object *ob, struct BMEditMesh *UNUSED(editData), + DerivedMesh *derivedData, float (*vertexCos)[3], int numVerts) +{ + MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md; + + meshcache_do(mcmd, ob, derivedData, vertexCos, numVerts); +} + + +ModifierTypeInfo modifierType_MeshCache = { + /* name */ "Mesh Cache", + /* structName */ "MeshCacheModifierData", + /* structSize */ sizeof(MeshCacheModifierData), + /* type */ eModifierTypeType_OnlyDeform, + /* flags */ eModifierTypeFlag_AcceptsCVs | + eModifierTypeFlag_SupportsEditmode, + + /* copyData */ copyData, + /* deformVerts */ deformVerts, + /* deformMatrices */ NULL, + /* deformVertsEM */ deformVertsEM, + /* deformMatricesEM */ NULL, + /* applyModifier */ NULL, + /* applyModifierEM */ NULL, + /* initData */ initData, + /* requiredDataMask */ NULL, + /* freeData */ NULL, + /* isDisabled */ isDisabled, + /* updateDepgraph */ NULL, + /* dependsOnTime */ dependsOnTime, + /* dependsOnNormals */ NULL, + /* foreachObjectLink */ NULL, + /* foreachIDLink */ NULL, + /* foreachTexLink */ NULL, +}; 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