void CSTLMeshWriter::writeFace(io::IWriteFile* file,
const core::vector3df& v1,
const core::vector3df& v2,
const core::vector3df& v3)
{
core::stringc tmp;
file->write("facet normal ",13);
getVectorAsStringLine(core::plane3df(v1,v2,v3).Normal, tmp);
file->write(tmp.c_str(),tmp.size());
file->write(" outer loop\n",13);
file->write(" vertex ",11);
getVectorAsStringLine(v1, tmp);
file->write(tmp.c_str(),tmp.size());
file->write(" vertex ",11);
getVectorAsStringLine(v2, tmp);
file->write(tmp.c_str(),tmp.size());
file->write(" vertex ",11);
getVectorAsStringLine(v3, tmp);
file->write(tmp.c_str(),tmp.size());
file->write(" endloop\n",10);
file->write("endfacet\n",9);
}
void CIrrMeshWriter::writeMeshBuffer(const scene::IMeshBuffer* buffer)
{
Writer->writeElement(L"buffer", false);
Writer->writeLineBreak();
// write bounding box
writeBoundingBox(buffer->getBoundingBox());
Writer->writeLineBreak();
// write material
writeMaterial(buffer->getMaterial());
// write vertices
const core::stringw vertexTypeStr = video::sBuiltInVertexTypeNames[buffer->getVertexType()];
Writer->writeElement(L"vertices", false,
L"type", vertexTypeStr.c_str(),
L"vertexCount", core::stringw(buffer->getVertexCount()).c_str());
Writer->writeLineBreak();
u32 vertexCount = buffer->getVertexCount();
switch(buffer->getVertexType())
{
case video::EVT_STANDARD:
{
video::S3DVertex* vtx = (video::S3DVertex*)buffer->getVertices();
for (u32 j=0; j<vertexCount; ++j)
{
core::stringw str = getVectorAsStringLine(vtx[j].Pos);
str += L" ";
str += getVectorAsStringLine(vtx[j].Normal);
char tmp[12];
sprintf(tmp, " %02x%02x%02x%02x ", vtx[j].Color.getAlpha(), vtx[j].Color.getRed(), vtx[j].Color.getGreen(), vtx[j].Color.getBlue());
str += tmp;
str += getVectorAsStringLine(vtx[j].TCoords);
Writer->writeText(str.c_str());
Writer->writeLineBreak();
}
}
break;
case video::EVT_2TCOORDS:
{
video::S3DVertex2TCoords* vtx = (video::S3DVertex2TCoords*)buffer->getVertices();
for (u32 j=0; j<vertexCount; ++j)
{
core::stringw str = getVectorAsStringLine(vtx[j].Pos);
str += L" ";
str += getVectorAsStringLine(vtx[j].Normal);
char tmp[12];
sprintf(tmp, " %02x%02x%02x%02x ", vtx[j].Color.getAlpha(), vtx[j].Color.getRed(), vtx[j].Color.getGreen(), vtx[j].Color.getBlue());
str += tmp;
str += getVectorAsStringLine(vtx[j].TCoords);
str += L" ";
str += getVectorAsStringLine(vtx[j].TCoords2);
Writer->writeText(str.c_str());
Writer->writeLineBreak();
}
}
break;
case video::EVT_TANGENTS:
{
video::S3DVertexTangents* vtx = (video::S3DVertexTangents*)buffer->getVertices();
for (u32 j=0; j<vertexCount; ++j)
{
core::stringw str = getVectorAsStringLine(vtx[j].Pos);
str += L" ";
str += getVectorAsStringLine(vtx[j].Normal);
char tmp[12];
sprintf(tmp, " %02x%02x%02x%02x ", vtx[j].Color.getAlpha(), vtx[j].Color.getRed(), vtx[j].Color.getGreen(), vtx[j].Color.getBlue());
str += tmp;
str += getVectorAsStringLine(vtx[j].TCoords);
str += L" ";
str += getVectorAsStringLine(vtx[j].Tangent);
str += L" ";
str += getVectorAsStringLine(vtx[j].Binormal);
Writer->writeText(str.c_str());
Writer->writeLineBreak();
}
}
break;
}
Writer->writeClosingTag(L"vertices");
Writer->writeLineBreak();
// write indices
Writer->writeElement(L"indices", false,
L"indexCount", core::stringw(buffer->getIndexCount()).c_str());
Writer->writeLineBreak();
int indexCount = (int)buffer->getIndexCount();
video::E_INDEX_TYPE iType = buffer->getIndexType();
const u16* idx16 = buffer->getIndices();
const u32* idx32 = (u32*) buffer->getIndices();
const int maxIndicesPerLine = 25;
for (int i=0; i<indexCount; ++i)
{
if(iType == video::EIT_16BIT)
{
core::stringw str((int)idx16[i]);
Writer->writeText(str.c_str());
}
else
{
core::stringw str((int)idx32[i]);
Writer->writeText(str.c_str());
}
if (i % maxIndicesPerLine != maxIndicesPerLine)
{
if (i % maxIndicesPerLine == maxIndicesPerLine-1)
Writer->writeLineBreak();
else
Writer->writeText(L" ");
}
}
if ((indexCount-1) % maxIndicesPerLine != maxIndicesPerLine-1)
Writer->writeLineBreak();
Writer->writeClosingTag(L"indices");
Writer->writeLineBreak();
// close buffer tag
Writer->writeClosingTag(L"buffer");
}
//! writes a mesh
bool COBJMeshWriter::writeMesh(io::IWriteFile* file, scene::IMesh* mesh, s32 flags)
{
if (!file)
return false;
os::Printer::log("Writing mesh", file->getFileName());
// write OBJ MESH header
const core::stringc name(FileSystem->getFileBasename(SceneManager->getMeshCache()->getMeshName(mesh), false)+".mtl");
file->write("# exported by Irrlicht\n",23);
file->write("mtllib ",7);
file->write(name.c_str(),name.size());
file->write("\n\n",2);
// write mesh buffers
core::array<video::SMaterial*> mat;
u32 allVertexCount=1; // count vertices over the whole file
for (u32 i=0; i<mesh->getMeshBufferCount(); ++i)
{
core::stringc num(i+1);
IMeshBuffer* buffer = mesh->getMeshBuffer(i);
if (buffer && buffer->getVertexCount())
{
file->write("g grp", 5);
file->write(num.c_str(), num.size());
file->write("\n",1);
u32 j;
const u32 vertexCount = buffer->getVertexCount();
for (j=0; j<vertexCount; ++j)
{
file->write("v ",2);
getVectorAsStringLine(buffer->getPosition(j), num);
file->write(num.c_str(), num.size());
}
for (j=0; j<vertexCount; ++j)
{
file->write("vt ",3);
getVectorAsStringLine(buffer->getTCoords(j), num);
file->write(num.c_str(), num.size());
}
for (j=0; j<vertexCount; ++j)
{
file->write("vn ",3);
getVectorAsStringLine(buffer->getNormal(j), num);
file->write(num.c_str(), num.size());
}
file->write("usemtl mat",10);
num = "";
for (j=0; j<mat.size(); ++j)
{
if (*mat[j]==buffer->getMaterial())
{
num = core::stringc(j);
break;
}
}
if (num == "")
{
num = core::stringc(mat.size());
mat.push_back(&buffer->getMaterial());
}
file->write(num.c_str(), num.size());
file->write("\n",1);
const u32 indexCount = buffer->getIndexCount();
for (j=0; j<indexCount; j+=3)
{
file->write("f ",2);
num = core::stringc(buffer->getIndices()[j+2]+allVertexCount);
file->write(num.c_str(), num.size());
file->write("/",1);
file->write(num.c_str(), num.size());
file->write("/",1);
file->write(num.c_str(), num.size());
file->write(" ",1);
num = core::stringc(buffer->getIndices()[j+1]+allVertexCount);
file->write(num.c_str(), num.size());
file->write("/",1);
file->write(num.c_str(), num.size());
file->write("/",1);
file->write(num.c_str(), num.size());
file->write(" ",1);
num = core::stringc(buffer->getIndices()[j+0]+allVertexCount);
file->write(num.c_str(), num.size());
file->write("/",1);
file->write(num.c_str(), num.size());
file->write("/",1);
file->write(num.c_str(), num.size());
file->write(" ",1);
file->write("\n",1);
}
file->write("\n",1);
allVertexCount += vertexCount;
}
}
if (mat.size() == 0)
return true;
file = FileSystem->createAndWriteFile( name );
if (file)
{
os::Printer::log("Writing material", file->getFileName());
file->write("# exported by Irrlicht\n\n",24);
for (u32 i=0; i<mat.size(); ++i)
{
core::stringc num(i);
file->write("newmtl mat",10);
file->write(num.c_str(),num.size());
file->write("\n",1);
getColorAsStringLine(mat[i]->AmbientColor, "Ka", num);
file->write(num.c_str(),num.size());
getColorAsStringLine(mat[i]->DiffuseColor, "Kd", num);
file->write(num.c_str(),num.size());
getColorAsStringLine(mat[i]->SpecularColor, "Ks", num);
file->write(num.c_str(),num.size());
getColorAsStringLine(mat[i]->EmissiveColor, "Ke", num);
file->write(num.c_str(),num.size());
num = core::stringc(mat[i]->Shininess/0.128f);
file->write("Ns ", 3);
file->write(num.c_str(),num.size());
file->write("\n", 1);
if (mat[i]->getTexture(0))
{
file->write("map_Kd ", 7);
file->write(mat[i]->getTexture(0)->getName().getPath().c_str(), mat[i]->getTexture(0)->getName().getPath().size());
file->write("\n",1);
}
file->write("\n",1);
}
file->drop();
}
return true;
}
void CIrrMeshWriter::writeBoundingBox(const core::aabbox3df& box)
{
Writer->writeElement(L"boundingBox", true,
L"minEdge", getVectorAsStringLine(box.MinEdge).c_str(),
L"maxEdge", getVectorAsStringLine(box.MaxEdge).c_str());
}
