forked from bartvdbraak/blender
fix for own error in normal-recalc r58077, initial face flipping wasn't checking against face-island center.
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@ -56,7 +56,7 @@ static bool bmo_recalc_normal_edge_filter_cb(BMEdge *e, void *UNUSED(user_data))
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*/
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static void bmo_recalc_face_normals_array(BMesh *bm, BMFace **faces, const int faces_len, const short oflag)
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{
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float cent[3];
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float cent[3], tvec[3];
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float (*faces_center)[3] = MEM_mallocN(sizeof(*faces_center) * faces_len, __func__);
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const float cent_fac = 1.0f / (float)faces_len;
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int i, f_start_index;
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@ -91,7 +91,8 @@ static void bmo_recalc_face_normals_array(BMesh *bm, BMFace **faces, const int f
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}
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/* make sure the starting face has the correct winding */
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if (dot_v3v3(faces_center[f_start_index], faces[f_start_index]->no) < 0.0f) {
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sub_v3_v3v3(tvec, faces_center[f_start_index], cent);
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if (dot_v3v3(tvec, faces[f_start_index]->no) < 0.0f) {
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BMO_elem_flag_enable(bm, faces[f_start_index], FACE_FLIP);
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}
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