1 
2 //
3 // This source file is part of appleseed.
4 // Visit https://appleseedhq.net/ for additional information and resources.
5 //
6 // This software is released under the MIT license.
7 //
8 // Copyright (c) 2014-2018 Francois Beaune, The appleseedhq Organization
9 //
10 // Permission is hereby granted, free of charge, to any person obtaining a copy
11 // of this software and associated documentation files (the "Software"), to deal
12 // in the Software without restriction, including without limitation the rights
13 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 // copies of the Software, and to permit persons to whom the Software is
15 // furnished to do so, subject to the following conditions:
16 //
17 // The above copyright notice and this permission notice shall be included in
18 // all copies or substantial portions of the Software.
19 //
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 // THE SOFTWARE.
27 //
28 
29 #pragma once
30 
31 // appleseed.main headers.
32 #include "main/dllsymbol.h"
33 
34 // Forward declarations.
35 namespace foundation { class MurmurHash; }
36 namespace renderer   { class MeshObject; }
37 
38 namespace renderer
39 {
40 
41 // Compute smooth vertex normal vectors for a mesh object.
42 // The mesh object must not already have normals.
43 APPLESEED_DLLSYMBOL void compute_smooth_vertex_normals(MeshObject& object);
44 
45 // Compute smooth vertex tangent vectors for a mesh object.
46 // The mesh object must not already have tangent vectors.
47 // The mesh object must have texture coordinates.
48 APPLESEED_DLLSYMBOL void compute_smooth_vertex_tangents(MeshObject& object);
49 
50 // Compute a hash for a mesh object.
51 APPLESEED_DLLSYMBOL void compute_signature(foundation::MurmurHash& hash, const MeshObject& object);
52 
53 }   // namespace renderer
54