diff options
Diffstat (limited to 'transform.cc')
| -rw-r--r-- | transform.cc | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/transform.cc b/transform.cc index 7ebce98..5951a70 100644 --- a/transform.cc +++ b/transform.cc @@ -100,9 +100,11 @@ AbstractNode *TransformModule::evaluate(const Context *ctx, const QVector<QStrin } if (val_v.type == Value::VECTOR) { - x = val_v.x; y = val_v.y; z = val_v.z; - double sn = 1.0 / sqrt(x*x + y*y + z*z); - x *= sn; y *= sn; z *= sn; + if (val_v.x != 0.0 || val_v.y != 0.0 || val_v.z != 0.0) { + x = val_v.x; y = val_v.y; z = val_v.z; + double sn = 1.0 / sqrt(x*x + y*y + z*z); + x *= sn; y *= sn; z *= sn; + } } double c = cos(a*M_PI/180.0); |