diff options
Diffstat (limited to 'source/blender/editors/space_view3d/view3d_view.c')
| -rw-r--r-- | source/blender/editors/space_view3d/view3d_view.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/source/blender/editors/space_view3d/view3d_view.c b/source/blender/editors/space_view3d/view3d_view.c index b8042a9f215..05922ba7a95 100644 --- a/source/blender/editors/space_view3d/view3d_view.c +++ b/source/blender/editors/space_view3d/view3d_view.c @@ -369,7 +369,11 @@ static void obmat_to_viewmat(RegionView3D *rv3d, Object *ob) invert_m4_m4(rv3d->viewmat, bmat); /* view quat calculation, needed for add object */ - mat4_normalized_to_quat(rv3d->viewquat, rv3d->viewmat); + copy_m4_m4(bmat, rv3d->viewmat); + if (is_negative_m4(bmat)) { + negate_m4(bmat); + } + mat4_normalized_to_quat(rv3d->viewquat, bmat); } void view3d_viewmatrix_set(Depsgraph *depsgraph, |