diff options
Diffstat (limited to 'source/blender/render/intern/source/shadeinput.c')
| -rw-r--r-- | source/blender/render/intern/source/shadeinput.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/source/blender/render/intern/source/shadeinput.c b/source/blender/render/intern/source/shadeinput.c index 51157cb83f4..ca661469b36 100644 --- a/source/blender/render/intern/source/shadeinput.c +++ b/source/blender/render/intern/source/shadeinput.c @@ -259,6 +259,11 @@ void shade_input_set_triangle_i(ShadeInput *shi, VlakRen *vlr, short i1, short i /* facenormal copy, can get flipped */ VECCOPY(shi->facenor, vlr->n); + /* copy of original pre-flipped normal, for geometry->front/back node output */ + VECCOPY(shi->orignor, vlr->n); + if (vlr->noflag & R_FLIPPED_NO) { + VECMUL(shi->orignor, -1.0f); + } } /* note, facenr declared volatile due to over-eager -O2 optimizations |