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Fix #30019: Copy rotation from a vertex group

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It was incorrect behavior of contarget_get_mesh_mat in cases when
object's Y axis is co-linear to average vertex group normal.
Use object's X axis for plane definition in such cases.
This commit is contained in:
Sergey Sharybin
2012-01-30 19:46:15 +00:00
parent 26d3b873d5
commit 8ec8aaf77f
1 changed files with 10 additions and 6 deletions
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16
source/blender/blenkernel/intern/constraint.c
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@@ -504,13 +504,17 @@ static void contarget_get_mesh_mat (Object *ob, const char *substring, float mat
normalize_v3(normal);
copy_v3_v3(plane, tmat[1]);
copy_v3_v3(tmat[2], normal);
cross_v3_v3v3(tmat[0], normal, plane);
cross_v3_v3v3(tmat[1], tmat[2], tmat[0]);
copy_m4_m3(mat, tmat);
cross_v3_v3v3(mat[0], normal, plane);
if(len_v3(mat[0]) < 1e-3) {
copy_v3_v3(plane, tmat[0]);
cross_v3_v3v3(mat[0], normal, plane);
}
copy_v3_v3(mat[2], normal);
cross_v3_v3v3(mat[1], mat[2], mat[0]);
normalize_m4(mat);
/* apply the average coordinate as the new location */
mul_v3_m4v3(mat[3], ob->obmat, vec);