Commit: a34a65314c82eb4fc34cd6b922e40b19cece5ade
Author: Campbell Barton
Date: Sat Apr 26 02:01:54 2014 +1000
https://developer.blender.org/rBa34a65314c82eb4fc34cd6b922e40b19cece5ade
Fix for transform local-axis calculation with zero length normals
===================================================================
M source/blender/editors/transform/transform_conversions.c
===================================================================
diff --git a/source/blender/editors/transform/transform_conversions.c
b/source/blender/editors/transform/transform_conversions.c
index 2ac92ce..0ad7750 100644
--- a/source/blender/editors/transform/transform_conversions.c
+++ b/source/blender/editors/transform/transform_conversions.c
@@ -2059,9 +2059,13 @@ static struct TransIslandData
*editmesh_islands_info_calc(BMEditMesh *em, int *r
/* pass */
}
else {
- normalize_v3(no);
- axis_dominant_v3_to_m3(trans_islands[i].axismtx, no);
- invert_m3(trans_islands[i].axismtx);
+ if (normalize_v3(no) != 0.0f) {
+
axis_dominant_v3_to_m3(trans_islands[i].axismtx, no);
+ invert_m3(trans_islands[i].axismtx);
+ }
+ else {
+ unit_m3(trans_islands[i].axismtx);
+ }
}
}
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