reverse the face orientation on all triangles in the stl files exported from sketchup.

1 files changed, 1 insertions, 1 deletions

diff --git a/stl.py b/stl.py
index 9bd3a38..f88c3fa 100644
--- a/stl.py
+++ b/stl.py
@@ -60,7 +60,7 @@ def mesh_from_binary_stl(filename):
     ntriangles = struct.unpack('<I', f.read(4))[0]
 
     for i in range(ntriangles):
-        f.read(12)
+        normal = tuple(struct.unpack('<fff', f.read(12)))
 
         triangle = [None]*3
         for j in range(3):