diff options
| author | Bastien Montagne <montagne29@wanadoo.fr> | 2014-01-11 14:31:44 +0400 |
|---|---|---|
| committer | Bastien Montagne <montagne29@wanadoo.fr> | 2014-01-11 14:51:19 +0400 |
| commit | 8952f58375385a6e8a636aa1e86763e88fc68fc0 (patch) | |
| tree | e0f82a77ed1e969b155517dd427505776dc6f2c1 /source/blender/blenkernel/intern/DerivedMesh.c | |
| parent | 274b2590fb0eedaadbd5e588f629df7cb69ba0d8 (diff) | |
Add tangent space computation/access from RNA (i.e. python).
This simply mimics code used for loopnormals, to enable py scripts to generate and access (temporary)
a tangent 3D vector and bitangent sign for each loop. Together with the split normals, this allow
to recreate a complete tangent space for normal mapping (bitangent = bitangent_sign * cross(normal, tangent)).
Expects all faces to be tri or quads.
Reviewed By: Brecht, campbellbarton
Differential Revision: https://developer.blender.org/D185
Diffstat (limited to 'source/blender/blenkernel/intern/DerivedMesh.c')
| -rw-r--r-- | source/blender/blenkernel/intern/DerivedMesh.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/source/blender/blenkernel/intern/DerivedMesh.c b/source/blender/blenkernel/intern/DerivedMesh.c index 341e8e671c7..8796bd54bd3 100644 --- a/source/blender/blenkernel/intern/DerivedMesh.c +++ b/source/blender/blenkernel/intern/DerivedMesh.c @@ -2612,6 +2612,7 @@ static void GetNormal(const SMikkTSpaceContext *pContext, float r_no[3], const i normal_short_to_float_v3(r_no, no); } } + static void SetTSpace(const SMikkTSpaceContext *pContext, const float fvTangent[3], const float fSign, const int face_num, const int iVert) { //assert(vert_index >= 0 && vert_index < 4); @@ -2621,7 +2622,6 @@ static void SetTSpace(const SMikkTSpaceContext *pContext, const float fvTangent[ pRes[3] = fSign; } - void DM_add_tangent_layer(DerivedMesh *dm) { /* mesh vars */ |