diff options
Diffstat (limited to 'source/blender/blenkernel/intern/constraint.c')
| -rw-r--r-- | source/blender/blenkernel/intern/constraint.c | 305 |
1 files changed, 244 insertions, 61 deletions
diff --git a/source/blender/blenkernel/intern/constraint.c b/source/blender/blenkernel/intern/constraint.c index f7a9f284a29..673b3c6d482 100644 --- a/source/blender/blenkernel/intern/constraint.c +++ b/source/blender/blenkernel/intern/constraint.c @@ -36,6 +36,7 @@ #include "MEM_guardedalloc.h" #include "BLI_blenlib.h" +#include "BLI_listbase.h" #include "BLI_math.h" #include "BLI_editVert.h" #include "BLI_cellalloc.h" @@ -77,12 +78,6 @@ #include "BPY_extern.h" #endif -#include "ED_mesh.h" - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - #ifndef M_PI #define M_PI 3.14159265358979323846 #endif @@ -433,8 +428,8 @@ static void contarget_get_mesh_mat (Scene *scene, Object *ob, char *substring, f * - check if the custom data masks for derivedFinal mean that we can just use that * (this is more effficient + sufficient for most cases) */ - if (ob->lastDataMask != CD_MASK_DERIVEDMESH) { - dm = mesh_get_derived_final(scene, ob, CD_MASK_DERIVEDMESH); + if (!(ob->lastDataMask & CD_MASK_MDEFORMVERT)) { + dm = mesh_get_derived_final(scene, ob, CD_MASK_MDEFORMVERT); freeDM= 1; } else @@ -457,8 +452,8 @@ static void contarget_get_mesh_mat (Scene *scene, Object *ob, char *substring, f if (dvert[i].dw[j].def_nr == dgroup) { dm->getVertCo(dm, i, co); dm->getVertNo(dm, i, nor); - add_v3_v3v3(vec, vec, co); - add_v3_v3v3(normal, normal, nor); + add_v3_v3(vec, co); + add_v3_v3(normal, nor); count++; break; } @@ -543,7 +538,7 @@ static void contarget_get_lattice_mat (Object *ob, char *substring, float mat[][ else memcpy(tvec, bp->vec, 3*sizeof(float)); - add_v3_v3v3(vec, vec, tvec); + add_v3_v3(vec, tvec); grouped++; break; @@ -827,12 +822,12 @@ static void childof_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *ta /* extract components of both matrices */ VECCOPY(loc, ct->matrix[3]); - mat4_to_eulO( eul, ct->rotOrder,ct->matrix); - mat4_to_size( size,ct->matrix); + mat4_to_eulO(eul, ct->rotOrder, ct->matrix); + mat4_to_size(size, ct->matrix); VECCOPY(loco, invmat[3]); - mat4_to_eulO( eulo, cob->rotOrder,invmat); - mat4_to_size( sizo,invmat); + mat4_to_eulO(eulo, cob->rotOrder, invmat); + mat4_to_size(sizo, invmat); /* disable channels not enabled */ if (!(data->flag & CHILDOF_LOCX)) loc[0]= loco[0]= 0.0f; @@ -1024,7 +1019,7 @@ static void trackto_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *ta float tmat[4][4]; /* Get size property, since ob->size is only the object's own relative size, not its global one */ - mat4_to_size( size,cob->matrix); + mat4_to_size(size, cob->matrix); /* Clear the object's rotation */ cob->matrix[0][0]=size[0]; @@ -1250,7 +1245,7 @@ static void followpath_get_tarmat (bConstraint *con, bConstraintOb *cob, bConstr curvetime= data->offset_fac; } - if ( where_on_path(ct->tar, curvetime, vec, dir, NULL, &radius) ) { + if ( where_on_path(ct->tar, curvetime, vec, dir, NULL, &radius, NULL) ) { if (data->followflag & FOLLOWPATH_FOLLOW) { vec_to_quat(quat, dir, (short)data->trackflag, (short)data->upflag); @@ -1392,9 +1387,9 @@ static void rotlimit_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *t float size[3]; VECCOPY(loc, cob->matrix[3]); - mat4_to_size( size,cob->matrix); + mat4_to_size(size, cob->matrix); - mat4_to_eulO( eul, cob->rotOrder,cob->matrix); + mat4_to_eulO(eul, cob->rotOrder, cob->matrix); /* constraint data uses radians internally */ @@ -1645,17 +1640,17 @@ static void rotlike_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *ta float size[3]; VECCOPY(loc, cob->matrix[3]); - mat4_to_size( size,cob->matrix); + mat4_to_size(size, cob->matrix); /* to allow compatible rotations, must get both rotations in the order of the owner... */ - mat4_to_eulO( eul, cob->rotOrder,ct->matrix); - mat4_to_eulO( obeul, cob->rotOrder,cob->matrix); + mat4_to_eulO(eul, cob->rotOrder, ct->matrix); + mat4_to_eulO(obeul, cob->rotOrder, cob->matrix); if ((data->flag & ROTLIKE_X)==0) eul[0] = obeul[0]; else { if (data->flag & ROTLIKE_OFFSET) - rotate_eulO(eul, cob->rotOrder, 'x', obeul[0]); + rotate_eulO(eul, cob->rotOrder, 'X', obeul[0]); if (data->flag & ROTLIKE_X_INVERT) eul[0] *= -1; @@ -1665,7 +1660,7 @@ static void rotlike_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *ta eul[1] = obeul[1]; else { if (data->flag & ROTLIKE_OFFSET) - rotate_eulO(eul, cob->rotOrder, 'y', obeul[1]); + rotate_eulO(eul, cob->rotOrder, 'Y', obeul[1]); if (data->flag & ROTLIKE_Y_INVERT) eul[1] *= -1; @@ -1675,7 +1670,7 @@ static void rotlike_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *ta eul[2] = obeul[2]; else { if (data->flag & ROTLIKE_OFFSET) - rotate_eulO(eul, cob->rotOrder, 'z', obeul[2]); + rotate_eulO(eul, cob->rotOrder, 'Z', obeul[2]); if (data->flag & ROTLIKE_Z_INVERT) eul[2] *= -1; @@ -1861,6 +1856,63 @@ static bConstraintTypeInfo CTI_TRANSLIKE = { translike_evaluate /* evaluate */ }; +/* ---------- Maintain Volume ---------- */ + +static void samevolume_new_data (void *cdata) +{ + bSameVolumeConstraint *data= (bSameVolumeConstraint *)cdata; + + data->flag = SAMEVOL_Y; + data->volume = 1.0f; +} + +static void samevolume_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *targets) +{ + bSameVolumeConstraint *data= con->data; + + float volume = data->volume; + float fac = 1.0f; + float obsize[3]; + + mat4_to_size(obsize, cob->matrix); + + /* calculate normalising scale factor for non-essential values */ + if (obsize[data->flag] != 0) + fac = sqrt(volume / obsize[data->flag]) / obsize[data->flag]; + + /* apply scaling factor to the channels not being kept */ + switch (data->flag) { + case SAMEVOL_X: + mul_v3_fl(cob->matrix[1], fac); + mul_v3_fl(cob->matrix[2], fac); + break; + case SAMEVOL_Y: + mul_v3_fl(cob->matrix[0], fac); + mul_v3_fl(cob->matrix[2], fac); + break; + case SAMEVOL_Z: + mul_v3_fl(cob->matrix[0], fac); + mul_v3_fl(cob->matrix[1], fac); + break; + } +} + +static bConstraintTypeInfo CTI_SAMEVOL = { + CONSTRAINT_TYPE_SAMEVOL, /* type */ + sizeof(bSameVolumeConstraint), /* size */ + "Maintain Volume", /* name */ + "bSameVolumeConstraint", /* struct name */ + NULL, /* free data */ + NULL, /* relink data */ + NULL, /* id looper */ + NULL, /* copy data */ + samevolume_new_data, /* new data */ + NULL, /* get constraint targets */ + NULL, /* flush constraint targets */ + NULL, /* get target matrix */ + samevolume_evaluate /* evaluate */ +}; + /* ----------- Python Constraint -------------- */ static void pycon_free (bConstraint *con) @@ -1930,8 +1982,10 @@ static void pycon_id_looper (bConstraint *con, ConstraintIDFunc func, void *user /* Whether this approach is maintained remains to be seen (aligorith) */ static void pycon_get_tarmat (bConstraint *con, bConstraintOb *cob, bConstraintTarget *ct, float ctime) { +#ifndef DISABLE_PYTHON bPythonConstraint *data= con->data; - +#endif + if (VALID_CONS_TARGET(ct)) { /* special exception for curves - depsgraph issues */ if (ct->tar->type == OB_CURVE) { @@ -2718,7 +2772,7 @@ static void stretchto_evaluate (bConstraint *con, bConstraintOb *cob, ListBase * float dist; /* store scaling before destroying obmat */ - mat4_to_size( size,cob->matrix); + mat4_to_size(size, cob->matrix); /* store X orientation before destroying obmat */ xx[0] = cob->matrix[0][0]; @@ -3000,7 +3054,7 @@ static void rbj_new_data (void *cdata) bRigidBodyJointConstraint *data= (bRigidBodyJointConstraint *)cdata; // removed code which set target of this constraint - data->type=1; + data->type=1; } static void rbj_id_looper (bConstraint *con, ConstraintIDFunc func, void *userdata) @@ -3210,7 +3264,7 @@ static void clampto_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *ta } /* 3. position on curve */ - if (where_on_path(ct->tar, curvetime, vec, dir, NULL, NULL) ) { + if (where_on_path(ct->tar, curvetime, vec, dir, NULL, NULL, NULL) ) { unit_m4(totmat); VECCOPY(totmat[3], vec); @@ -3301,7 +3355,7 @@ static void transform_evaluate (bConstraint *con, bConstraintOb *cob, ListBase * mat4_to_size( dvec,ct->matrix); break; case 1: /* rotation (convert to degrees first) */ - mat4_to_eulO( dvec, cob->rotOrder,ct->matrix); + mat4_to_eulO(dvec, cob->rotOrder, ct->matrix); for (i=0; i<3; i++) dvec[i] = (float)(dvec[i] / M_PI * 180); break; @@ -3312,8 +3366,8 @@ static void transform_evaluate (bConstraint *con, bConstraintOb *cob, ListBase * /* extract components of owner's matrix */ VECCOPY(loc, cob->matrix[3]); - mat4_to_eulO( eul, cob->rotOrder,cob->matrix); - mat4_to_size( size,cob->matrix); + mat4_to_eulO(eul, cob->rotOrder, cob->matrix); + mat4_to_size(size, cob->matrix); /* determine where in range current transforms lie */ if (data->expo) { @@ -3433,73 +3487,73 @@ static void shrinkwrap_get_tarmat (bConstraint *con, bConstraintOb *cob, bConstr float co[3] = {0.0f, 0.0f, 0.0f}; float no[3] = {0.0f, 0.0f, 0.0f}; float dist; - + SpaceTransform transform; DerivedMesh *target = object_get_derived_final(cob->scene, ct->tar, CD_MASK_BAREMESH); BVHTreeRayHit hit; BVHTreeNearest nearest; - + BVHTreeFromMesh treeData; - memset( &treeData, 0, sizeof(treeData) ); - + memset(&treeData, 0, sizeof(treeData)); + nearest.index = -1; nearest.dist = FLT_MAX; - + hit.index = -1; hit.dist = 100000.0f; //TODO should use FLT_MAX.. but normal projection doenst yet supports it - + unit_m4(ct->matrix); - + if(target != NULL) { space_transform_from_matrixs(&transform, cob->matrix, ct->tar->obmat); - + switch(scon->shrinkType) { case MOD_SHRINKWRAP_NEAREST_SURFACE: case MOD_SHRINKWRAP_NEAREST_VERTEX: - + if(scon->shrinkType == MOD_SHRINKWRAP_NEAREST_VERTEX) bvhtree_from_mesh_verts(&treeData, target, 0.0, 2, 6); else bvhtree_from_mesh_faces(&treeData, target, 0.0, 2, 6); - + if(treeData.tree == NULL) { fail = TRUE; break; } - + space_transform_apply(&transform, co); - + BLI_bvhtree_find_nearest(treeData.tree, co, &nearest, treeData.nearest_callback, &treeData); dist = len_v3v3(co, nearest.co); interp_v3_v3v3(co, co, nearest.co, (dist - scon->dist)/dist); /* linear interpolation */ space_transform_invert(&transform, co); break; - + case MOD_SHRINKWRAP_PROJECT: if(scon->projAxis & MOD_SHRINKWRAP_PROJECT_OVER_X_AXIS) no[0] = 1.0f; if(scon->projAxis & MOD_SHRINKWRAP_PROJECT_OVER_Y_AXIS) no[1] = 1.0f; if(scon->projAxis & MOD_SHRINKWRAP_PROJECT_OVER_Z_AXIS) no[2] = 1.0f; - + if(INPR(no,no) < FLT_EPSILON) { fail = TRUE; break; } - + normalize_v3(no); - - + + bvhtree_from_mesh_faces(&treeData, target, scon->dist, 4, 6); if(treeData.tree == NULL) { fail = TRUE; break; } - + if(normal_projection_project_vertex(0, co, no, &transform, treeData.tree, &hit, treeData.raycast_callback, &treeData) == FALSE) { fail = TRUE; @@ -3508,19 +3562,19 @@ static void shrinkwrap_get_tarmat (bConstraint *con, bConstraintOb *cob, bConstr VECCOPY(co, hit.co); break; } - + free_bvhtree_from_mesh(&treeData); - + target->release(target); - + if(fail == TRUE) { /* Don't move the point */ co[0] = co[1] = co[2] = 0.0f; } - + /* co is in local object coordinates, change it to global and update target position */ - mul_v3_m4v3(co, cob->matrix, co); + mul_m4_v3(cob->matrix, co); VECCOPY(ct->matrix[3], co); } } @@ -3652,7 +3706,7 @@ static void damptrack_evaluate (bConstraint *con, bConstraintOb *cob, ListBase * /* construct rotation matrix from the axis-angle rotation found above * - this call takes care to make sure that the axis provided is a unit vector first */ - axis_angle_to_mat3( rmat,raxis, rangle); + axis_angle_to_mat3(rmat, raxis, rangle); /* rotate the owner in the way defined by this rotation matrix, then reapply the location since * we may have destroyed that in the process of multiplying the matrix @@ -3701,6 +3755,13 @@ static void splineik_copy (bConstraint *con, bConstraint *srccon) dst->points= MEM_dupallocN(src->points); } +static void splineik_new_data (void *cdata) +{ + bSplineIKConstraint *data= (bSplineIKConstraint *)cdata; + + data->chainlen= 1; +} + static void splineik_id_looper (bConstraint *con, ConstraintIDFunc func, void *userdata) { bSplineIKConstraint *data= con->data; @@ -3765,13 +3826,125 @@ static bConstraintTypeInfo CTI_SPLINEIK = { NULL, /* relink data */ splineik_id_looper, /* id looper */ splineik_copy, /* copy data */ - NULL, /* new data */ + splineik_new_data, /* new data */ splineik_get_tars, /* get constraint targets */ splineik_flush_tars, /* flush constraint targets */ splineik_get_tarmat, /* get target matrix */ NULL /* evaluate - solved as separate loop */ }; +/* ----------- Pivot ------------- */ + +static void pivotcon_id_looper (bConstraint *con, ConstraintIDFunc func, void *userdata) +{ + bPivotConstraint *data= con->data; + + /* target only */ + func(con, (ID**)&data->tar, userdata); +} + +static int pivotcon_get_tars (bConstraint *con, ListBase *list) +{ + if (con && list) { + bPivotConstraint *data= con->data; + bConstraintTarget *ct; + + /* standard target-getting macro for single-target constraints */ + SINGLETARGET_GET_TARS(con, data->tar, data->subtarget, ct, list) + + return 1; + } + + return 0; +} + +static void pivotcon_flush_tars (bConstraint *con, ListBase *list, short nocopy) +{ + if (con && list) { + bPivotConstraint *data= con->data; + bConstraintTarget *ct= list->first; + + /* the following macro is used for all standard single-target constraints */ + SINGLETARGET_FLUSH_TARS(con, data->tar, data->subtarget, ct, list, nocopy) + } +} + +static void pivotcon_evaluate (bConstraint *con, bConstraintOb *cob, ListBase *targets) +{ + bPivotConstraint *data= con->data; + bConstraintTarget *ct= targets->first; + + float pivot[3], vec[3]; + float rotMat[3][3]; + + /* firstly, check if pivoting should take place based on the current rotation */ + if (data->rotAxis != PIVOTCON_AXIS_NONE) { + float rot[3]; + + /* extract euler-rotation of target */ + mat4_to_eulO(rot, cob->rotOrder, cob->matrix); + + /* check which range might be violated */ + if (data->rotAxis < PIVOTCON_AXIS_X) { + /* negative rotations (data->rotAxis = 0 -> 2) */ + if (rot[data->rotAxis] > 0.0f) + return; + } + else { + /* positive rotations (data->rotAxis = 3 -> 5 */ + if (rot[data->rotAxis - PIVOTCON_AXIS_X] < 0.0f) + return; + } + } + + /* find the pivot-point to use */ + if (VALID_CONS_TARGET(ct)) { + /* apply offset to target location */ + add_v3_v3v3(pivot, ct->matrix[3], data->offset); + } + else { + /* no targets to worry about... */ + if ((data->flag & PIVOTCON_FLAG_OFFSET_ABS) == 0) { + /* offset is relative to owner */ + add_v3_v3v3(pivot, cob->matrix[3], data->offset); + } + else { + /* directly use the 'offset' specified as an absolute position instead */ + VECCOPY(pivot, data->offset); + } + } + + /* get rotation matrix representing the rotation of the owner */ + // TODO: perhaps we might want to include scaling based on the pivot too? + copy_m3_m4(rotMat, cob->matrix); + normalize_m3(rotMat); + + /* perform the pivoting... */ + /* 1. take the vector from owner to the pivot */ + sub_v3_v3v3(vec, pivot, cob->matrix[3]); + /* 2. rotate this vector by the rotation of the object... */ + mul_m3_v3(rotMat, vec); + /* 3. make the rotation in terms of the pivot now */ + add_v3_v3v3(cob->matrix[3], pivot, vec); +} + + +static bConstraintTypeInfo CTI_PIVOT = { + CONSTRAINT_TYPE_PIVOT, /* type */ + sizeof(bPivotConstraint), /* size */ + "Pivot", /* name */ + "bPivotConstraint", /* struct name */ + NULL, /* free data */ + NULL, /* relink data */ + pivotcon_id_looper, /* id looper */ + NULL, /* copy data */ + NULL, /* new data */ // XXX: might be needed to get 'normal' pivot behaviour... + pivotcon_get_tars, /* get constraint targets */ + pivotcon_flush_tars, /* flush constraint targets */ + default_get_tarmat, /* get target matrix */ + pivotcon_evaluate /* evaluate */ +}; + /* ************************* Constraints Type-Info *************************** */ /* All of the constraints api functions use bConstraintTypeInfo structs to carry out * and operations that involve constraint specific code. @@ -3807,6 +3980,8 @@ static void constraints_init_typeinfo () { constraintsTypeInfo[21]= &CTI_DAMPTRACK; /* Damped TrackTo Constraint */ constraintsTypeInfo[22]= &CTI_SPLINEIK; /* Spline IK Constraint */ constraintsTypeInfo[23]= &CTI_TRANSLIKE; /* Copy Transforms Constraint */ + constraintsTypeInfo[24]= &CTI_SAMEVOL; /* Maintain Volume Constraint */ + constraintsTypeInfo[25]= &CTI_PIVOT; /* Pivot Constraint */ } /* This function should be used for getting the appropriate type-info when only @@ -4071,7 +4246,7 @@ static void con_extern_cb(bConstraint *con, ID **idpoin, void *userdata) } /* duplicate all of the constraints in a constraint stack */ -void copy_constraints (ListBase *dst, const ListBase *src) +void copy_constraints (ListBase *dst, const ListBase *src, int do_extern) { bConstraint *con, *srccon; @@ -4090,15 +4265,23 @@ void copy_constraints (ListBase *dst, const ListBase *src) if (cti->copy_data) cti->copy_data(con, srccon); - /* go over used ID-links for this constraint to ensure that they are valid for proxies */ - if (cti->id_looper) - cti->id_looper(con, con_extern_cb, NULL); + /* for proxies we dont want to make extern */ + if (do_extern) { + /* go over used ID-links for this constraint to ensure that they are valid for proxies */ + if (cti->id_looper) + cti->id_looper(con, con_extern_cb, NULL); + } } } } /* ......... */ +bConstraint *constraints_findByName(ListBase *list, const char *name) +{ + return BLI_findstring(list, name, offsetof(bConstraint, name)); +} + /* finds the 'active' constraint in a constraint stack */ bConstraint *constraints_get_active (ListBase *list) { |