static float rna_PoseBone_do_envelope(bPoseChannel *chan, float *vec)
{
Bone *bone = chan->bone;
float scale = (bone->flag & BONE_MULT_VG_ENV) == BONE_MULT_VG_ENV ? bone->weight : 1.0f;
return distfactor_to_bone(vec, chan->pose_head, chan->pose_tail, bone->rad_head * scale,
bone->rad_tail * scale, bone->dist * scale);
}
static void envelope_bone_weighting(Object *ob, Mesh *mesh, float (*verts)[3], int numbones, Bone **bonelist,
bDeformGroup **dgrouplist, bDeformGroup **dgroupflip,
float (*root)[3], float (*tip)[3], const int *selected, float scale)
{
/* Create vertex group weights from envelopes */
Bone *bone;
bDeformGroup *dgroup;
float distance;
int i, iflip, j;
bool use_topology = (mesh->editflag & ME_EDIT_MIRROR_TOPO) != 0;
bool use_mask = false;
if ((ob->mode & OB_MODE_WEIGHT_PAINT) &&
(mesh->editflag & (ME_EDIT_PAINT_FACE_SEL | ME_EDIT_PAINT_VERT_SEL)))
{
use_mask = true;
}
/* for each vertex in the mesh */
for (i = 0; i < mesh->totvert; i++) {
if (use_mask && !(mesh->mvert[i].flag & SELECT)) {
continue;
}
iflip = (dgroupflip) ? mesh_get_x_mirror_vert(ob, NULL, i, use_topology) : -1;
/* for each skinnable bone */
for (j = 0; j < numbones; ++j) {
if (!selected[j])
continue;
bone = bonelist[j];
dgroup = dgrouplist[j];
/* store the distance-factor from the vertex to the bone */
distance = distfactor_to_bone(verts[i], root[j], tip[j],
bone->rad_head * scale, bone->rad_tail * scale, bone->dist * scale);
/* add the vert to the deform group if (weight != 0.0) */
if (distance != 0.0f)
ED_vgroup_vert_add(ob, dgroup, i, distance, WEIGHT_REPLACE);
else
ED_vgroup_vert_remove(ob, dgroup, i);
/* do same for mirror */
if (dgroupflip && dgroupflip[j] && iflip != -1) {
if (distance != 0.0f)
ED_vgroup_vert_add(ob, dgroupflip[j], iflip, distance,
WEIGHT_REPLACE);
else
ED_vgroup_vert_remove(ob, dgroupflip[j], iflip);
}
}
}
}
static float rna_Bone_do_envelope(Bone *bone, float *vec)
{
float scale = (bone->flag & BONE_MULT_VG_ENV) == BONE_MULT_VG_ENV ? bone->weight : 1.0f;
return distfactor_to_bone(vec, bone->arm_head, bone->arm_tail, bone->rad_head * scale,
bone->rad_tail * scale, bone->dist * scale);
}
