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Diffstat (limited to 'source/blender/src/view.c')
| -rw-r--r-- | source/blender/src/view.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/source/blender/src/view.c b/source/blender/src/view.c index c501dbb8f73..b17dfbd2bb7 100644 --- a/source/blender/src/view.c +++ b/source/blender/src/view.c @@ -152,6 +152,11 @@ void initgrabz(float x, float y, float z) * (accounting for near zero values) * */ if (G.vd->zfac < 1.e-6f && G.vd->zfac > -1.e-6f) G.vd->zfac = 1.0f; + + /* Negative zfac means x, y, z was behind the camera (in perspective). + * This gives flipped directions, so revert back to ok default case. + */ + if (G.vd->zfac < 0.0f) G.vd->zfac = 1.0f; } void window_to_3d(float *vec, short mx, short my) |