diff options
Diffstat (limited to 'source/blender/editors/object/object_transform.c')
-rw-r--r-- | source/blender/editors/object/object_transform.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/source/blender/editors/object/object_transform.c b/source/blender/editors/object/object_transform.c index 62a8b46e904..132b530455e 100644 --- a/source/blender/editors/object/object_transform.c +++ b/source/blender/editors/object/object_transform.c @@ -1608,6 +1608,7 @@ struct XFormAxisItem { float rot_mat[3][3]; void *obtfm; float xform_dist; + bool is_z_flip; #ifdef USE_RELATIVE_ROTATION /* use when translating multiple */ @@ -1730,11 +1731,16 @@ static void object_apply_location(Object *ob, const float loc[3]) static bool object_orient_to_location(Object *ob, const float rot_orig[3][3], const float axis[3], - const float location[3]) + const float location[3], + const bool z_flip) { float delta[3]; sub_v3_v3v3(delta, ob->obmat[3], location); if (normalize_v3(delta) != 0.0f) { + if (z_flip) { + negate_v3(delta); + } + if (len_squared_v3v3(delta, axis) > FLT_EPSILON) { float delta_rot[3][3]; float final_rot[3][3]; @@ -1841,6 +1847,11 @@ static int object_transform_axis_target_invoke(bContext *C, wmOperator *op, cons for (int i = 0; i < xfd->object_data_len; i++, item++) { item->obtfm = BKE_object_tfm_backup(item->ob); BKE_object_rot_to_mat3(item->ob, item->rot_mat, true); + + /* Detect negative scale matrix. */ + float full_mat3[3][3]; + BKE_object_to_mat3(item->ob, full_mat3); + item->is_z_flip = dot_v3v3(item->rot_mat[2], full_mat3[2]) < 0.0f; } } @@ -1975,7 +1986,7 @@ static int object_transform_axis_target_modal(bContext *C, wmOperator *op, const } object_orient_to_location( - item->ob, item->rot_mat, item->rot_mat[2], location_world); + item->ob, item->rot_mat, item->rot_mat[2], location_world, item->is_z_flip); DEG_id_tag_update(&item->ob->id, ID_RECALC_TRANSFORM); WM_event_add_notifier(C, NC_OBJECT | ND_TRANSFORM, item->ob); @@ -1989,8 +2000,11 @@ static int object_transform_axis_target_modal(bContext *C, wmOperator *op, const else { struct XFormAxisItem *item = xfd->object_data; for (int i = 0; i < xfd->object_data_len; i++, item++) { - if (object_orient_to_location( - item->ob, item->rot_mat, item->rot_mat[2], location_world)) { + if (object_orient_to_location(item->ob, + item->rot_mat, + item->rot_mat[2], + location_world, + item->is_z_flip)) { DEG_id_tag_update(&item->ob->id, ID_RECALC_TRANSFORM); WM_event_add_notifier(C, NC_OBJECT | ND_TRANSFORM, item->ob); } |