HydraCore3/imageutils_gbuffer.cpp at main · Ray-Tracing-Systems/HydraCore3 · GitHub

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
141
142
143
#include "imageutils.h"
#include "include/cglobals.h"
#include "Image2d.h"

#include "integrator_pt.h"

#ifdef USE_STB_IMAGE
  #define SaveLDRImageM SaveImage4fByExtension
#else
  #define SaveLDRImageM SaveImage4fToBMP
#endif

void SaveGBufferImages(const std::string& imageOutClean, const std::string& imageOutFiExt,
                       const std::vector<Integrator::GBufferPixel>& gbuffer, std::vector<float>& tmp, uint width, uint height)
{
  // normal
  //
  float dmin = 1e38f;
  float dmax = 0.0f;

  std::fill(tmp.begin(), tmp.end(), 0.0f);
  for(size_t i=0;i<gbuffer.size();i++)
  {
    tmp[i*4+0] = std::abs(gbuffer[i].norm[0]);
    tmp[i*4+1] = std::abs(gbuffer[i].norm[1]);
    tmp[i*4+2] = std::abs(gbuffer[i].norm[2]);
    tmp[i*4+3] = 0.0f;

    dmin = std::min(dmin, gbuffer[i].depth);
    dmax = std::max(dmax, gbuffer[i].depth);
  }

  auto nameColorNorm = imageOutClean + "2" + "." + imageOutFiExt;
  SaveLDRImageM(tmp.data(), width, height, 4, nameColorNorm.c_str(), 1.0f, 1.0f);

  // diffuse color
  //
  std::fill(tmp.begin(), tmp.end(), 0.0f);
  for(size_t i=0;i<gbuffer.size();i++)
  {
    tmp[i*4+0] = gbuffer[i].rgba[0];
    tmp[i*4+1] = gbuffer[i].rgba[1];
    tmp[i*4+2] = gbuffer[i].rgba[2];
    tmp[i*4+3] = gbuffer[i].rgba[3];
  }

  auto nameColorTex = imageOutClean + "3" + "." + imageOutFiExt;
  SaveLDRImageM(tmp.data(), width, height, 4, nameColorTex.c_str(), 1.0f, 2.4f);

  // depth buffer
  std::fill(tmp.begin(), tmp.end(), 0.0f);
  for(size_t i=0;i<gbuffer.size();i++)
  {
    const float d = (gbuffer[i].depth - dmin) / (dmax - dmin);

    //int r = (int)((1.0f-d)*255.0f);
    //if(r > 255)
    //  r = 255;
    //else if (r < 1)
    //  r = 1;
    //if (d > 1e5f || gbuffer[i].matId < 0)
    //  r = 0;

   tmp[i*4+0] = float(d);
   tmp[i*4+1] = float(d);
   tmp[i*4+2] = float(d);
   tmp[i*4+3] = float(d);
  }

  auto nameColorDepth = imageOutClean + "4" + "." + imageOutFiExt;
  SaveLDRImageM(tmp.data(), width, height, 4, nameColorDepth.c_str(), 1.0f, 1.0f);

  //Next: matId, onjId, instId

  LiteImage::Image2D<uint32_t> tempImage(width, height);
  uint32_t* tempDataRef = tempImage.data();

  const unsigned int palette[20] = { 0xffe6194b, 0xff3cb44b, 0xffffe119, 0xff0082c8,
                                     0xfff58231, 0xff911eb4, 0xff46f0f0, 0xfff032e6,
                                     0xffd2f53c, 0xfffabebe, 0xff008080, 0xffe6beff,
                                     0xffaa6e28, 0xfffffac8, 0xff800000, 0xffaaffc3,
                                     0xff808000, 0xffffd8b1, 0xff000080, 0xff808080 };

  const unsigned paletteSize = 20;

  // mat id
  //
  for(int y=0;y<int(height);y++)
  for(int x=0;x<int(width); x++)
  //for(size_t i=0;i<gbuffer.size();i++)
  {
    int i1 = y*width+x;
    int i2 = (height-y-1)*width+x;
    int index = gbuffer[i2].matId;
    if (index < 0)
      index = 0xff000000;
    else
      index = palette[index % paletteSize];
    tempDataRef[i1] = uint32_t(index);
  }

  auto nameColorMatId = imageOutClean + "5" + "." + imageOutFiExt;
  LiteImage::SaveImage(nameColorMatId.c_str(), tempImage, 1.0f);

  // obj id
  //
  for(int y=0;y<int(height);y++)
  for(int x=0;x<int(width); x++)
  //for(size_t i=0;i<gbuffer.size();i++)
  {
    int i1 = y*width+x;
    int i2 = (height-y-1)*width+x;
    int index = gbuffer[i2].objId;
    if (index < 0)
      index = 0xff000000;
    else
      index = palette[index % paletteSize];
    tempDataRef[i1] = uint32_t(index);
  }

  auto nameColorObjId = imageOutClean + "7" + "." + imageOutFiExt;
  LiteImage::SaveImage(nameColorObjId.c_str(), tempImage, 1.0f);

  // obj id
  //
  for(int y=0;y<int(height);y++)
  for(int x=0;x<int(width); x++)
  //for(size_t i=0;i<gbuffer.size();i++)
  {
    int i1 = y*width+x;
    int i2 = (height-y-1)*width+x;
    int index = gbuffer[i2].instId;
    if (index < 0)
      index = 0xff000000;
    else
      index = palette[index % paletteSize];
    tempDataRef[i1] = uint32_t(index);
  }

  auto nameColorInstId = imageOutClean + "6" + "." + imageOutFiExt;
  LiteImage::SaveImage(nameColorInstId.c_str(), tempImage, 1.0f);

}