diff options
author | Tamito Kajiyama <rd6t-kjym@asahi-net.or.jp> | 2010-04-18 06:03:19 +0400 |
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committer | Tamito Kajiyama <rd6t-kjym@asahi-net.or.jp> | 2010-04-18 06:03:19 +0400 |
commit | dfe2f8dc03267e041102837e92f547fb04881510 (patch) | |
tree | d9582c4667ce5b9e39e2adce40832aa4f44b4fe7 /source/blender/modifiers/intern/MOD_cast.c | |
parent | d7e08f2d33207fdf76b1b597ef0de9dec26e3987 (diff) | |
parent | 00e46ef739cf2bfddb8805af056aa59fd3b3c71c (diff) |
Merged changes in the trunk up to revision 28247.
Diffstat (limited to 'source/blender/modifiers/intern/MOD_cast.c')
-rw-r--r-- | source/blender/modifiers/intern/MOD_cast.c | 627 |
1 files changed, 627 insertions, 0 deletions
diff --git a/source/blender/modifiers/intern/MOD_cast.c b/source/blender/modifiers/intern/MOD_cast.c new file mode 100644 index 00000000000..3f97dfc150c --- /dev/null +++ b/source/blender/modifiers/intern/MOD_cast.c @@ -0,0 +1,627 @@ +/* +* $Id$ +* +* ***** 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. +* +* The Original Code is Copyright (C) 2005 by the Blender Foundation. +* All rights reserved. +* +* Contributor(s): Daniel Dunbar +* Ton Roosendaal, +* Ben Batt, +* Brecht Van Lommel, +* Campbell Barton +* +* ***** END GPL LICENSE BLOCK ***** +* +*/ + +#include "DNA_meshdata_types.h" + +#include "BLI_math.h" + +#include "BKE_deform.h" +#include "BKE_DerivedMesh.h" +#include "BKE_modifier.h" +#include "BKE_utildefines.h" + +#include "depsgraph_private.h" + +#include "MOD_util.h" + +static void initData(ModifierData *md) +{ + CastModifierData *cmd = (CastModifierData*) md; + + cmd->fac = 0.5f; + cmd->radius = 0.0f; + cmd->size = 0.0f; + cmd->flag = MOD_CAST_X | MOD_CAST_Y | MOD_CAST_Z + | MOD_CAST_SIZE_FROM_RADIUS; + cmd->type = MOD_CAST_TYPE_SPHERE; + cmd->defgrp_name[0] = '\0'; + cmd->object = NULL; +} + + +static void copyData(ModifierData *md, ModifierData *target) +{ + CastModifierData *cmd = (CastModifierData*) md; + CastModifierData *tcmd = (CastModifierData*) target; + + tcmd->fac = cmd->fac; + tcmd->radius = cmd->radius; + tcmd->size = cmd->size; + tcmd->flag = cmd->flag; + tcmd->type = cmd->type; + tcmd->object = cmd->object; + strncpy(tcmd->defgrp_name, cmd->defgrp_name, 32); +} + +static int isDisabled(ModifierData *md, int useRenderParams) +{ + CastModifierData *cmd = (CastModifierData*) md; + short flag; + + flag = cmd->flag & (MOD_CAST_X|MOD_CAST_Y|MOD_CAST_Z); + + if((cmd->fac == 0.0f) || flag == 0) return 1; + + return 0; +} + +static CustomDataMask requiredDataMask(Object *ob, ModifierData *md) +{ + CastModifierData *cmd = (CastModifierData *)md; + CustomDataMask dataMask = 0; + + /* ask for vertexgroups if we need them */ + if(cmd->defgrp_name[0]) dataMask |= (1 << CD_MDEFORMVERT); + + return dataMask; +} + +static void foreachObjectLink( + ModifierData *md, Object *ob, + void (*walk)(void *userData, Object *ob, Object **obpoin), + void *userData) +{ + CastModifierData *cmd = (CastModifierData*) md; + + walk (userData, ob, &cmd->object); +} + +static void updateDepgraph( + ModifierData *md, DagForest *forest, struct Scene *scene, Object *ob, + DagNode *obNode) +{ + CastModifierData *cmd = (CastModifierData*) md; + + if (cmd->object) { + DagNode *curNode = dag_get_node(forest, cmd->object); + + dag_add_relation(forest, curNode, obNode, DAG_RL_OB_DATA, + "Cast Modifier"); + } +} + +static void sphere_do( + CastModifierData *cmd, Object *ob, DerivedMesh *dm, + float (*vertexCos)[3], int numVerts) +{ + MDeformVert *dvert = NULL; + + Object *ctrl_ob = NULL; + + int i, defgrp_index; + int has_radius = 0; + short flag, type; + float fac, facm, len = 0.0f; + float vec[3], center[3] = {0.0f, 0.0f, 0.0f}; + float mat[4][4], imat[4][4]; + + fac = cmd->fac; + facm = 1.0f - fac; + + flag = cmd->flag; + type = cmd->type; /* projection type: sphere or cylinder */ + + if (type == MOD_CAST_TYPE_CYLINDER) + flag &= ~MOD_CAST_Z; + + ctrl_ob = cmd->object; + + /* spherify's center is {0, 0, 0} (the ob's own center in its local + * space), by default, but if the user defined a control object, + * we use its location, transformed to ob's local space */ + if (ctrl_ob) { + if(flag & MOD_CAST_USE_OB_TRANSFORM) { + invert_m4_m4(ctrl_ob->imat, ctrl_ob->obmat); + mul_m4_m4m4(mat, ob->obmat, ctrl_ob->imat); + invert_m4_m4(imat, mat); + } + + invert_m4_m4(ob->imat, ob->obmat); + mul_v3_m4v3(center, ob->imat, ctrl_ob->obmat[3]); + } + + /* now we check which options the user wants */ + + /* 1) (flag was checked in the "if (ctrl_ob)" block above) */ + /* 2) cmd->radius > 0.0f: only the vertices within this radius from + * the center of the effect should be deformed */ + if (cmd->radius > FLT_EPSILON) has_radius = 1; + + /* 3) if we were given a vertex group name, + * only those vertices should be affected */ + defgrp_index = defgroup_name_index(ob, cmd->defgrp_name); + + if ((ob->type == OB_MESH) && dm && defgrp_index >= 0) + dvert = dm->getVertDataArray(dm, CD_MDEFORMVERT); + + if(flag & MOD_CAST_SIZE_FROM_RADIUS) { + len = cmd->radius; + } + else { + len = cmd->size; + } + + if(len <= 0) { + for (i = 0; i < numVerts; i++) { + len += len_v3v3(center, vertexCos[i]); + } + len /= numVerts; + + if (len == 0.0f) len = 10.0f; + } + + /* ready to apply the effect, one vertex at a time; + * tiny optimization: the code is separated (with parts repeated) + * in two possible cases: + * with or w/o a vgroup. With lots of if's in the code below, + * further optimizations are possible, if needed */ + if (dvert) { /* with a vgroup */ + float fac_orig = fac; + for (i = 0; i < numVerts; i++) { + MDeformWeight *dw = NULL; + int j; + float tmp_co[3]; + + copy_v3_v3(tmp_co, vertexCos[i]); + if(ctrl_ob) { + if(flag & MOD_CAST_USE_OB_TRANSFORM) { + mul_m4_v3(mat, tmp_co); + } else { + sub_v3_v3v3(tmp_co, tmp_co, center); + } + } + + copy_v3_v3(vec, tmp_co); + + if (type == MOD_CAST_TYPE_CYLINDER) + vec[2] = 0.0f; + + if (has_radius) { + if (len_v3(vec) > cmd->radius) continue; + } + + for (j = 0; j < dvert[i].totweight; ++j) { + if(dvert[i].dw[j].def_nr == defgrp_index) { + dw = &dvert[i].dw[j]; + break; + } + } + if (!dw) continue; + + fac = fac_orig * dw->weight; + facm = 1.0f - fac; + + normalize_v3(vec); + + if (flag & MOD_CAST_X) + tmp_co[0] = fac*vec[0]*len + facm*tmp_co[0]; + if (flag & MOD_CAST_Y) + tmp_co[1] = fac*vec[1]*len + facm*tmp_co[1]; + if (flag & MOD_CAST_Z) + tmp_co[2] = fac*vec[2]*len + facm*tmp_co[2]; + + if(ctrl_ob) { + if(flag & MOD_CAST_USE_OB_TRANSFORM) { + mul_m4_v3(imat, tmp_co); + } else { + add_v3_v3v3(tmp_co, tmp_co, center); + } + } + + copy_v3_v3(vertexCos[i], tmp_co); + } + return; + } + + /* no vgroup */ + for (i = 0; i < numVerts; i++) { + float tmp_co[3]; + + copy_v3_v3(tmp_co, vertexCos[i]); + if(ctrl_ob) { + if(flag & MOD_CAST_USE_OB_TRANSFORM) { + mul_m4_v3(mat, tmp_co); + } else { + sub_v3_v3v3(tmp_co, tmp_co, center); + } + } + + copy_v3_v3(vec, tmp_co); + + if (type == MOD_CAST_TYPE_CYLINDER) + vec[2] = 0.0f; + + if (has_radius) { + if (len_v3(vec) > cmd->radius) continue; + } + + normalize_v3(vec); + + if (flag & MOD_CAST_X) + tmp_co[0] = fac*vec[0]*len + facm*tmp_co[0]; + if (flag & MOD_CAST_Y) + tmp_co[1] = fac*vec[1]*len + facm*tmp_co[1]; + if (flag & MOD_CAST_Z) + tmp_co[2] = fac*vec[2]*len + facm*tmp_co[2]; + + if(ctrl_ob) { + if(flag & MOD_CAST_USE_OB_TRANSFORM) { + mul_m4_v3(imat, tmp_co); + } else { + add_v3_v3v3(tmp_co, tmp_co, center); + } + } + + copy_v3_v3(vertexCos[i], tmp_co); + } +} + +static void cuboid_do( + CastModifierData *cmd, Object *ob, DerivedMesh *dm, + float (*vertexCos)[3], int numVerts) +{ + MDeformVert *dvert = NULL; + Object *ctrl_ob = NULL; + + int i, defgrp_index; + int has_radius = 0; + short flag; + float fac, facm; + float min[3], max[3], bb[8][3]; + float center[3] = {0.0f, 0.0f, 0.0f}; + float mat[4][4], imat[4][4]; + + fac = cmd->fac; + facm = 1.0f - fac; + + flag = cmd->flag; + + ctrl_ob = cmd->object; + + /* now we check which options the user wants */ + + /* 1) (flag was checked in the "if (ctrl_ob)" block above) */ + /* 2) cmd->radius > 0.0f: only the vertices within this radius from + * the center of the effect should be deformed */ + if (cmd->radius > FLT_EPSILON) has_radius = 1; + + /* 3) if we were given a vertex group name, + * only those vertices should be affected */ + defgrp_index = defgroup_name_index(ob, cmd->defgrp_name); + + if ((ob->type == OB_MESH) && dm && defgrp_index >= 0) + dvert = dm->getVertDataArray(dm, CD_MDEFORMVERT); + + if (ctrl_ob) { + if(flag & MOD_CAST_USE_OB_TRANSFORM) { + invert_m4_m4(ctrl_ob->imat, ctrl_ob->obmat); + mul_m4_m4m4(mat, ob->obmat, ctrl_ob->imat); + invert_m4_m4(imat, mat); + } + + invert_m4_m4(ob->imat, ob->obmat); + mul_v3_m4v3(center, ob->imat, ctrl_ob->obmat[3]); + } + + if((flag & MOD_CAST_SIZE_FROM_RADIUS) && has_radius) { + for(i = 0; i < 3; i++) { + min[i] = -cmd->radius; + max[i] = cmd->radius; + } + } else if(!(flag & MOD_CAST_SIZE_FROM_RADIUS) && cmd->size > 0) { + for(i = 0; i < 3; i++) { + min[i] = -cmd->size; + max[i] = cmd->size; + } + } else { + /* get bound box */ + /* We can't use the object's bound box because other modifiers + * may have changed the vertex data. */ + INIT_MINMAX(min, max); + + /* Cast's center is the ob's own center in its local space, + * by default, but if the user defined a control object, we use + * its location, transformed to ob's local space. */ + if (ctrl_ob) { + float vec[3]; + + /* let the center of the ctrl_ob be part of the bound box: */ + DO_MINMAX(center, min, max); + + for (i = 0; i < numVerts; i++) { + sub_v3_v3v3(vec, vertexCos[i], center); + DO_MINMAX(vec, min, max); + } + } + else { + for (i = 0; i < numVerts; i++) { + DO_MINMAX(vertexCos[i], min, max); + } + } + + /* we want a symmetric bound box around the origin */ + if (fabs(min[0]) > fabs(max[0])) max[0] = fabs(min[0]); + if (fabs(min[1]) > fabs(max[1])) max[1] = fabs(min[1]); + if (fabs(min[2]) > fabs(max[2])) max[2] = fabs(min[2]); + min[0] = -max[0]; + min[1] = -max[1]; + min[2] = -max[2]; + } + + /* building our custom bounding box */ + bb[0][0] = bb[2][0] = bb[4][0] = bb[6][0] = min[0]; + bb[1][0] = bb[3][0] = bb[5][0] = bb[7][0] = max[0]; + bb[0][1] = bb[1][1] = bb[4][1] = bb[5][1] = min[1]; + bb[2][1] = bb[3][1] = bb[6][1] = bb[7][1] = max[1]; + bb[0][2] = bb[1][2] = bb[2][2] = bb[3][2] = min[2]; + bb[4][2] = bb[5][2] = bb[6][2] = bb[7][2] = max[2]; + + /* ready to apply the effect, one vertex at a time; + * tiny optimization: the code is separated (with parts repeated) + * in two possible cases: + * with or w/o a vgroup. With lots of if's in the code below, + * further optimizations are possible, if needed */ + if (dvert) { /* with a vgroup */ + float fac_orig = fac; + for (i = 0; i < numVerts; i++) { + MDeformWeight *dw = NULL; + int j, octant, coord; + float d[3], dmax, apex[3], fbb; + float tmp_co[3]; + + copy_v3_v3(tmp_co, vertexCos[i]); + if(ctrl_ob) { + if(flag & MOD_CAST_USE_OB_TRANSFORM) { + mul_m4_v3(mat, tmp_co); + } else { + sub_v3_v3v3(tmp_co, tmp_co, center); + } + } + + if (has_radius) { + if (fabs(tmp_co[0]) > cmd->radius || + fabs(tmp_co[1]) > cmd->radius || + fabs(tmp_co[2]) > cmd->radius) continue; + } + + for (j = 0; j < dvert[i].totweight; ++j) { + if(dvert[i].dw[j].def_nr == defgrp_index) { + dw = &dvert[i].dw[j]; + break; + } + } + if (!dw) continue; + + fac = fac_orig * dw->weight; + facm = 1.0f - fac; + + /* The algo used to project the vertices to their + * bounding box (bb) is pretty simple: + * for each vertex v: + * 1) find in which octant v is in; + * 2) find which outer "wall" of that octant is closer to v; + * 3) calculate factor (var fbb) to project v to that wall; + * 4) project. */ + + /* find in which octant this vertex is in */ + octant = 0; + if (tmp_co[0] > 0.0f) octant += 1; + if (tmp_co[1] > 0.0f) octant += 2; + if (tmp_co[2] > 0.0f) octant += 4; + + /* apex is the bb's vertex at the chosen octant */ + copy_v3_v3(apex, bb[octant]); + + /* find which bb plane is closest to this vertex ... */ + d[0] = tmp_co[0] / apex[0]; + d[1] = tmp_co[1] / apex[1]; + d[2] = tmp_co[2] / apex[2]; + + /* ... (the closest has the higher (closer to 1) d value) */ + dmax = d[0]; + coord = 0; + if (d[1] > dmax) { + dmax = d[1]; + coord = 1; + } + if (d[2] > dmax) { + /* dmax = d[2]; */ /* commented, we don't need it */ + coord = 2; + } + + /* ok, now we know which coordinate of the vertex to use */ + + if (fabs(tmp_co[coord]) < FLT_EPSILON) /* avoid division by zero */ + continue; + + /* finally, this is the factor we wanted, to project the vertex + * to its bounding box (bb) */ + fbb = apex[coord] / tmp_co[coord]; + + /* calculate the new vertex position */ + if (flag & MOD_CAST_X) + tmp_co[0] = facm * tmp_co[0] + fac * tmp_co[0] * fbb; + if (flag & MOD_CAST_Y) + tmp_co[1] = facm * tmp_co[1] + fac * tmp_co[1] * fbb; + if (flag & MOD_CAST_Z) + tmp_co[2] = facm * tmp_co[2] + fac * tmp_co[2] * fbb; + + if(ctrl_ob) { + if(flag & MOD_CAST_USE_OB_TRANSFORM) { + mul_m4_v3(imat, tmp_co); + } else { + add_v3_v3v3(tmp_co, tmp_co, center); + } + } + + copy_v3_v3(vertexCos[i], tmp_co); + } + return; + } + + /* no vgroup (check previous case for comments about the code) */ + for (i = 0; i < numVerts; i++) { + int octant, coord; + float d[3], dmax, fbb, apex[3]; + float tmp_co[3]; + + copy_v3_v3(tmp_co, vertexCos[i]); + if(ctrl_ob) { + if(flag & MOD_CAST_USE_OB_TRANSFORM) { + mul_m4_v3(mat, tmp_co); + } else { + sub_v3_v3(tmp_co, center); + } + } + + if (has_radius) { + if (fabs(tmp_co[0]) > cmd->radius || + fabs(tmp_co[1]) > cmd->radius || + fabs(tmp_co[2]) > cmd->radius) continue; + } + + octant = 0; + if (tmp_co[0] > 0.0f) octant += 1; + if (tmp_co[1] > 0.0f) octant += 2; + if (tmp_co[2] > 0.0f) octant += 4; + + copy_v3_v3(apex, bb[octant]); + + d[0] = tmp_co[0] / apex[0]; + d[1] = tmp_co[1] / apex[1]; + d[2] = tmp_co[2] / apex[2]; + + dmax = d[0]; + coord = 0; + if (d[1] > dmax) { + dmax = d[1]; + coord = 1; + } + if (d[2] > dmax) { + /* dmax = d[2]; */ /* commented, we don't need it */ + coord = 2; + } + + if (fabs(tmp_co[coord]) < FLT_EPSILON) + continue; + + fbb = apex[coord] / tmp_co[coord]; + + if (flag & MOD_CAST_X) + tmp_co[0] = facm * tmp_co[0] + fac * tmp_co[0] * fbb; + if (flag & MOD_CAST_Y) + tmp_co[1] = facm * tmp_co[1] + fac * tmp_co[1] * fbb; + if (flag & MOD_CAST_Z) + tmp_co[2] = facm * tmp_co[2] + fac * tmp_co[2] * fbb; + + if(ctrl_ob) { + if(flag & MOD_CAST_USE_OB_TRANSFORM) { + mul_m4_v3(imat, tmp_co); + } else { + add_v3_v3v3(tmp_co, tmp_co, center); + } + } + + copy_v3_v3(vertexCos[i], tmp_co); + } +} + +static void deformVerts( + ModifierData *md, Object *ob, DerivedMesh *derivedData, + float (*vertexCos)[3], int numVerts, int useRenderParams, int isFinalCalc) +{ + DerivedMesh *dm = NULL; + CastModifierData *cmd = (CastModifierData *)md; + + dm = get_dm(md->scene, ob, NULL, derivedData, NULL, 0); + + if (cmd->type == MOD_CAST_TYPE_CUBOID) { + cuboid_do(cmd, ob, dm, vertexCos, numVerts); + } else { /* MOD_CAST_TYPE_SPHERE or MOD_CAST_TYPE_CYLINDER */ + sphere_do(cmd, ob, dm, vertexCos, numVerts); + } + + if(dm != derivedData) + dm->release(dm); +} + +static void deformVertsEM( + ModifierData *md, Object *ob, struct EditMesh *editData, + DerivedMesh *derivedData, float (*vertexCos)[3], int numVerts) +{ + DerivedMesh *dm = get_dm(md->scene, ob, editData, derivedData, NULL, 0); + CastModifierData *cmd = (CastModifierData *)md; + + if (cmd->type == MOD_CAST_TYPE_CUBOID) { + cuboid_do(cmd, ob, dm, vertexCos, numVerts); + } else { /* MOD_CAST_TYPE_SPHERE or MOD_CAST_TYPE_CYLINDER */ + sphere_do(cmd, ob, dm, vertexCos, numVerts); + } + + if(dm != derivedData) + dm->release(dm); +} + + +ModifierTypeInfo modifierType_Cast = { + /* name */ "Cast", + /* structName */ "CastModifierData", + /* structSize */ sizeof(CastModifierData), + /* type */ eModifierTypeType_OnlyDeform, + /* flags */ eModifierTypeFlag_AcceptsCVs + | eModifierTypeFlag_SupportsEditmode, + + /* copyData */ copyData, + /* deformVerts */ deformVerts, + /* deformVertsEM */ deformVertsEM, + /* deformMatricesEM */ 0, + /* applyModifier */ 0, + /* applyModifierEM */ 0, + /* initData */ initData, + /* requiredDataMask */ requiredDataMask, + /* freeData */ 0, + /* isDisabled */ isDisabled, + /* updateDepgraph */ updateDepgraph, + /* dependsOnTime */ 0, + /* foreachObjectLink */ foreachObjectLink, + /* foreachIDLink */ 0, +}; |