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Fixed: Support for quads and any number of vertices for a face

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This commit is contained in:
kervala 2017-01-04 14:24:02 +01:00
parent fc7a2b295e
commit bcad6f8910
1 changed files with 67 additions and 48 deletions
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115
code/nel/tools/3d/textures_tool/main.cpp
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@ -53,8 +53,19 @@ typedef std::vector<CPoint> CPoints;
struct CFace
{
static const uint INDICES_COUNT = 3;
uint indices[INDICES_COUNT];
std::vector<uint> indices;
};
struct CObject
{
std::string name;
std::vector<NLMISC::CUV> textureCoords;
std::vector<CFace> faces;
void display()
{
nlinfo("Object %s processed with %u vertices and %u faces", name.c_str(), (uint)textureCoords.size(), (uint)faces.size());
}
};
bool fillPoint(NLMISC::CBitmap &bitmap, sint width, CPoints &points)
@ -100,6 +111,23 @@ bool fillPoint(NLMISC::CBitmap &bitmap, sint width, CPoints &points)
return true;
}
void drawEdge(NLMISC::CBitmap &bitmap, const CObject &object, const CFace &face, uint index0, uint index1)
{
NLMISC::CUV uv0 = object.textureCoords[face.indices[index0]];
NLMISC::CUV uv1 = object.textureCoords[face.indices[index1]];
std::vector<std::pair<sint, sint> > pixels;
// draw the triangle with vertices UV coordinates
NLMISC::drawFullLine(uv0.U, uv0.V, uv1.U, uv1.V, pixels);
// for each pixels, set them to black
for (uint j = 0, jlen = pixels.size(); j < jlen; ++j)
{
bitmap.setPixelColor(pixels[j].first, pixels[j].second, NLMISC::CRGBA::Black);
}
}
int main(int argc, char **argv)
{
NLMISC::CApplicationContext applicationContext;
@ -285,9 +313,6 @@ int main(int argc, char **argv)
if (args.haveArg("u"))
{
std::vector<NLMISC::CUV> verticeTextureCoords;
std::vector<CFace> faces;
NLMISC::CIFile objFile;
if (!objFile.open(filename))
@ -296,6 +321,8 @@ int main(int argc, char **argv)
return 1;
}
CObject object;
char buffer[1024];
while (!objFile.eof())
@ -310,6 +337,7 @@ int main(int argc, char **argv)
// texture coordinate
if (line.substr(0, 3) == "vt ")
{
// vertex texture
std::vector<std::string> tokens;
NLMISC::explode(line, std::string(" "), tokens);
@ -320,7 +348,7 @@ int main(int argc, char **argv)
NLMISC::fromString(tokens[2], v);
// V coordinates are inverted
verticeTextureCoords.push_back(NLMISC::CUV(u * (float)TextureSize, (1.f - v) * (float)TextureSize));
object.textureCoords.push_back(NLMISC::CUV(u * (float)TextureSize, (1.f - v) * (float)TextureSize));
}
else
{
@ -329,41 +357,49 @@ int main(int argc, char **argv)
}
else if (line.substr(0, 2) == "f ")
{
// face
std::vector<std::string> tokens;
NLMISC::explode(line, std::string(" "), tokens);
if (tokens.size() == 4)
CFace face;
face.indices.resize(tokens.size()-1);
bool faceValid = true;
for (uint i = 1, ilen = tokens.size(); i < ilen; ++i)
{
CFace face;
std::vector<std::string> tokens2;
NLMISC::explode(tokens[i], std::string("/"), tokens2);
for (uint i = 1; i < 4; ++i)
if (tokens2.size() == 3)
{
std::vector<std::string> tokens2;
NLMISC::explode(tokens[i], std::string("/"), tokens2);
if (tokens2.size() == 3)
if (NLMISC::fromString(tokens2[1], face.indices[i - 1]))
{
NLMISC::fromString(tokens2[1], face.indices[i - 1]);
// we want indices start from 0 instead of 1
--face.indices[i - 1];
}
else
{
nlwarning("Not 3 arguments for indices");
faceValid = false;
}
}
else
{
nlwarning("Not 3 arguments for indices");
}
}
faces.push_back(face);
}
else
{
nlwarning("Not 4 arguments for F");
}
if (faceValid) object.faces.push_back(face);
}
else if (line.substr(0, 2) == "o ")
{
// object
object.name = line.substr(2);
object.display();
}
}
nlinfo("OBJ file processed with %u vertices and %u faces", (uint)verticeTextureCoords.size(), (uint)faces.size());
object.display();
objFile.close();
@ -376,35 +412,18 @@ int main(int argc, char **argv)
memset(&outBitmap.getPixels()[0], 255, TextureSize * TextureSize * 4);
// process all faces
for (uint i = 0, len = faces.size(); i < len; ++i)
for (uint i = 0, ilen = object.faces.size(); i < ilen; ++i)
{
const CFace &face = faces[i];
const CFace &face = object.faces[i];
// the 3 pixels of a vertice
NLMISC::CUV uv0 = verticeTextureCoords[face.indices[0]];
NLMISC::CUV uv1 = verticeTextureCoords[face.indices[1]];
NLMISC::CUV uv2 = verticeTextureCoords[face.indices[2]];
std::vector<std::pair<sint, sint> > pixels, temp;
// draw the triangle with vertices UV coordinates
NLMISC::drawFullLine(uv0.U, uv0.V, uv1.U, uv1.V, pixels);
// append pixels
NLMISC::drawFullLine(uv1.U, uv1.V, uv2.U, uv2.V, temp);
pixels.reserve(pixels.size() + temp.size());
pixels.insert(pixels.end(), temp.begin(), temp.end());
// append pixels
NLMISC::drawFullLine(uv2.U, uv2.V, uv0.U, uv0.V, temp);
pixels.reserve(pixels.size() + temp.size());
pixels.insert(pixels.end(), temp.begin(), temp.end());
// for each pixels, set them to black
for (uint j = 0, jlen = pixels.size(); j < jlen; ++j)
// pixels of a face
for (uint k = 1, klen = face.indices.size(); k < klen; ++k)
{
outBitmap.setPixelColor(pixels[j].first, pixels[j].second, NLMISC::CRGBA::Black);
drawEdge(outBitmap, object, face, k - 1, k);
}
// link last and fist pixels
drawEdge(outBitmap, object, face, face.indices.size()-1, 0);
}
// save output bitmap