1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#ifndef GL_MESH_H
#define GL_MESH_H
#include "../../regression/common/far_utils.h"
#include <opensubdiv/far/patchTable.h>
#include "../common/glUtils.h"
#include <algorithm>
// Wrapper class for drawing Far meshes & components
class GLMesh {
public:
enum Component {
COMP_FACE=0,
COMP_EDGE,
COMP_VERT,
COMP_NUM_COMPONENTS
};
enum VertColorMode {
VERTCOLOR_SOLID=0,
VERTCOLOR_BY_LEVEL,
VERTCOLOR_BY_SHARPNESS,
VERTCOLOR_BY_PARENT_TYPE
};
enum EdgeColorMode {
EDGECOLOR_SOLID=0,
EDGECOLOR_BY_LEVEL,
EDGECOLOR_BY_SHARPNESS,
EDGECOLOR_BY_PATCHTYPE
};
enum FaceColorMode {
FACECOLOR_SOLID=0,
FACECOLOR_BY_PATCHTYPE
};
struct Options {
Options() : vertColorMode(0), edgeColorMode(0), faceColorMode(0) {}
unsigned int vertColorMode:3,
edgeColorMode:3,
faceColorMode:3;
};
// -----------------------------------------------------
// Raw topology initialization
void Initialize(Options options,
int nverts, int nfaces, int * vertsperface, int * faceverts,
float const * vertexData);
// -----------------------------------------------------
// Far initialization
typedef OpenSubdiv::Far::TopologyRefiner TopologyRefiner;
typedef OpenSubdiv::Far::PatchTable PatchTable;
void Initialize(Options options, TopologyRefiner const & refiner,
PatchTable const * patchTable, float const * vertexData);
void InitializeFVar(Options options, TopologyRefiner const & refiner,
PatchTable const * patchTable, int channel, int tessFactor, float const * fvarData);
void InitializeDeviceBuffers();
// -----------------------------------------------------
GLMesh();
~GLMesh();
void Draw(Component comp, GLuint transformUB, GLuint lightingUB);
void SetDiffuseColor(float r, float g, float b, float a);
void SetFaceColor(int face, float r, float g, float b, float a);
private:
void setSolidColor(float * color);
static void setColorByLevel(int level, float * color);
static void setColorBySharpness(float sharpness, float * color);
void initializeVertexComponentBuffer(float const * vertexData, int nverts);
void initializeBuffers(Options options, TopologyRefiner const & refiner,
float const * vertexData);
void initializeBuffers(Options options, TopologyRefiner const & refiner,
PatchTable const & patchTable, float const * vertexData);
void clearBuffers();
int _numComps[COMP_NUM_COMPONENTS];
GLuint _VAO[COMP_NUM_COMPONENTS],
_VBO[COMP_NUM_COMPONENTS],
_EAO[COMP_NUM_COMPONENTS],
_TBOfaceColors;
std::vector<float> _vbo[COMP_NUM_COMPONENTS];
std::vector<int> _eao[COMP_NUM_COMPONENTS];
std::vector<float > _faceColors;
float _ambientColor[4],
_diffuseColor[4];
};
#endif // GL_MESH_H
|
