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Differential D3975 Diff 12607 source/blender/blenkernel/intern/constraint.c

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source/blender/blenkernel/intern/constraint.c

Show First 20 Lines • Show All 584 Lines • ▼ Show 20 Lines if (pchan) {
*/ */
bool is_bbone = (pchan->bone) && (pchan->bone->segments > 1) && (flag & CONSTRAINT_BBONE_SHAPE); bool is_bbone = (pchan->bone) && (pchan->bone->segments > 1) && (flag & CONSTRAINT_BBONE_SHAPE);
bool full_bbone = (flag & CONSTRAINT_BBONE_SHAPE_FULL) != 0; bool full_bbone = (flag & CONSTRAINT_BBONE_SHAPE_FULL) != 0;
if (headtail < 0.000001f && !(is_bbone && full_bbone)) { if (headtail < 0.000001f && !(is_bbone && full_bbone)) {
/* skip length interpolation if set to head */ /* skip length interpolation if set to head */
mul_m4_m4m4(mat, ob->obmat, pchan->pose_mat); mul_m4_m4m4(mat, ob->obmat, pchan->pose_mat);
} }
else if (is_bbone) { else if (is_bbone && pchan->bone->segments == pchan->runtime.bbone_segments) {
/* use point along bbone */ /* use point along bbone */
Mat4 bbone[MAX_BBONE_SUBDIV]; Mat4 *bbone = pchan->runtime.bbone_pose_mats;
float tempmat[4][4]; float tempmat[4][4];
float loc[3], fac; float loc[3], fac;
/* get bbone segments */
b_bone_spline_setup(pchan, false, bbone);
/* figure out which segment(s) the headtail value falls in */ /* figure out which segment(s) the headtail value falls in */
fac = (float)pchan->bone->segments * headtail; fac = (float)pchan->bone->segments * headtail;
if (fac >= pchan->bone->segments - 1) { if (fac >= pchan->bone->segments - 1) {
/* special case: end segment doesn't get created properly... */ /* special case: end segment doesn't get created properly... */
float pt[3], sfac; float pt[3], sfac;
int index; int index;
▲ Show 20 Lines • Show All 1,549 Lines • ▼ Show 20 Lines if (ct != NULL) {
unit_m4(ct->matrix); unit_m4(ct->matrix);
} }
} }
/* Compute and accumulate transformation for a single target bone. */ /* Compute and accumulate transformation for a single target bone. */
static void armdef_accumulate_bone(bConstraintTarget *ct, bPoseChannel *pchan, const float wco[3], bool force_envelope, float *r_totweight, float r_sum_mat[4][4], DualQuat *r_sum_dq) static void armdef_accumulate_bone(bConstraintTarget *ct, bPoseChannel *pchan, const float wco[3], bool force_envelope, float *r_totweight, float r_sum_mat[4][4], DualQuat *r_sum_dq)
{ {
float mat[4][4], iobmat[4][4], iamat[4][4], basemat[4][4], co[3]; float mat[4][4], iobmat[4][4], basemat[4][4], co[3];
Bone *bone = pchan->bone; Bone *bone = pchan->bone;
float weight = ct->weight; float weight = ct->weight;
/* Our object's location in target pose space. */ /* Our object's location in target pose space. */
invert_m4_m4(iobmat, ct->tar->obmat); invert_m4_m4(iobmat, ct->tar->obmat);
mul_v3_m4v3(co, iobmat, wco); mul_v3_m4v3(co, iobmat, wco);
/* Inverted rest pose matrix: bone->chan_mat may not be final yet. */
invert_m4_m4(iamat, bone->arm_mat);
/* Multiply by the envelope weight when appropriate. */ /* Multiply by the envelope weight when appropriate. */
if (force_envelope || (bone->flag & BONE_MULT_VG_ENV)) { if (force_envelope || (bone->flag & BONE_MULT_VG_ENV)) {
weight *= distfactor_to_bone(co, bone->arm_head, bone->arm_tail, weight *= distfactor_to_bone(co, bone->arm_head, bone->arm_tail,
bone->rad_head, bone->rad_tail, bone->dist); bone->rad_head, bone->rad_tail, bone->dist);
} }
/* Find the correct bone transform matrix in world space. */ /* Find the correct bone transform matrix in world space. */
if (bone->segments > 1) { if (bone->segments > 1 && bone->segments == pchan->runtime.bbone_segments) {
Mat4 *b_bone_mats = pchan->runtime.bbone_deform_mats;
float (*iamat)[4] = b_bone_mats[0].mat;
/* The target is a B-Bone: /* The target is a B-Bone:
* FIRST: find the segment (see b_bone_deform in armature.c) * FIRST: find the segment (see b_bone_deform in armature.c)
* Need to transform co back to bonespace, only need y. */ * Need to transform co back to bonespace, only need y. */
float y = iamat[0][1] * co[0] + iamat[1][1] * co[1] + iamat[2][1] * co[2] + iamat[3][1]; float y = iamat[0][1] * co[0] + iamat[1][1] * co[1] + iamat[2][1] * co[2] + iamat[3][1];
float segment = bone->length / ((float)bone->segments); float segment = bone->length / ((float)bone->segments);
int a = (int)(y / segment); int a = (int)(y / segment);
CLAMP(a, 0, bone->segments - 1); CLAMP(a, 0, bone->segments - 1);
/* SECOND: compute the matrix (see pchan_b_bone_defmats in armature.c) */ /* Convert the selected matrix into object space. */
Mat4 b_bone[MAX_BBONE_SUBDIV], b_bone_rest[MAX_BBONE_SUBDIV]; mul_m4_series(mat, ct->tar->obmat, b_bone_mats[a + 1].mat, iobmat);
float irmat[4][4];
b_bone_spline_setup(pchan, false, b_bone);
b_bone_spline_setup(pchan, true, b_bone_rest);
invert_m4_m4(irmat, b_bone_rest[a].mat);
mul_m4_series(mat, ct->matrix, b_bone[a].mat, irmat, iamat, iobmat);
} }
else { else {
/* Simple bone. */ /* Simple bone. This requires DEG_OPCODE_BONE_DONE dependency due to chan_mat. */
mul_m4_series(mat, ct->matrix, iamat, iobmat); mul_m4_series(mat, ct->tar->obmat, pchan->chan_mat, iobmat);
} }
/* Accumulate the transformation. */ /* Accumulate the transformation. */
*r_totweight += weight; *r_totweight += weight;
if (r_sum_dq != NULL) { if (r_sum_dq != NULL) {
DualQuat tmpdq; DualQuat tmpdq;
▲ Show 20 Lines • Show All 3,158 Lines • Show Last 20 Lines