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add support for vertex per color with OBJ files (read/write)

This commit is contained in:
Paolo Cignoni 2011-01-13 18:04:32 +00:00
parent 811396f854
commit dfba841714
2 changed files with 43 additions and 15 deletions
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18
wrap/io_trimesh/export_obj.h
View File

@ -93,6 +93,7 @@ namespace io {
//vert //vert
capability |= vcg::tri::io::Mask::IOM_VERTNORMAL; capability |= vcg::tri::io::Mask::IOM_VERTNORMAL;
capability |= vcg::tri::io::Mask::IOM_VERTTEXCOORD; capability |= vcg::tri::io::Mask::IOM_VERTTEXCOORD;
capability |= vcg::tri::io::Mask::IOM_VERTCOLOR;
//face //face
capability |= vcg::tri::io::Mask::IOM_FACECOLOR; capability |= vcg::tri::io::Mask::IOM_FACECOLOR;
@ -172,11 +173,20 @@ namespace io {
//} //}
//saves vertex //saves vertex
fprintf(fp,"v %f %f %f\n",(*vi).P()[0],(*vi).P()[1],(*vi).P()[2]);
fprintf(fp,"v %f %f %f",(*vi).P()[0],(*vi).P()[1],(*vi).P()[2]);
if(mask & Mask::IOM_VERTCOLOR)
fprintf(fp," %f %f %f",double((*vi).C()[0])/255.,double((*vi).C()[1])/255.,double((*vi).C()[2])/255.);
fprintf(fp,"\n");
if (cb !=NULL) { if (cb !=NULL)
if(!(*cb)((100*++current)/totalPrimitives, "writing vertices ")) {
{ fclose(fp); return E_ABORTED;} } if(!(*cb)((100*++current)/totalPrimitives, "writing vertices "))
{
fclose(fp);
return E_ABORTED;
}
}
numvert++; numvert++;
} }
assert(numvert == m.vn); assert(numvert == m.vn);

40
wrap/io_trimesh/import_obj.h
View File

@ -289,7 +289,18 @@ public:
// ---------------------- // ----------------------
if (((oi.mask & vcg::tri::io::Mask::IOM_VERTCOLOR) != 0) && (m.HasPerVertexColor())) if (((oi.mask & vcg::tri::io::Mask::IOM_VERTCOLOR) != 0) && (m.HasPerVertexColor()))
{ {
(*vi).C() = currentColor; if(numTokens>=7)
{
unsigned char r = (unsigned char) ((ScalarType) atof(tokens[4].c_str()) * 255.0);
unsigned char g = (unsigned char) ((ScalarType) atof(tokens[5].c_str()) * 255.0);
unsigned char b = (unsigned char) ((ScalarType) atof(tokens[6].c_str()) * 255.0);
unsigned char alpha = (unsigned char) ((numTokens>=8 ? (ScalarType) atof(tokens[7].c_str()) : 1) * 255.0);
(*vi).C() = Color4b(r, g, b, alpha);
}
else
{
(*vi).C() = currentColor;
}
} }
++vi; // move to next vertex iterator ++vi; // move to next vertex iterator
@ -865,8 +876,9 @@ public:
if (length == 0) return false; if (length == 0) return false;
bool bHasPerFaceColor = false; bool bHasPerFaceColor = false;
bool bHasNormals = false; bool bHasNormals = false;
bool bHasPerVertexColor = false;
oi.numVertices=0; oi.numVertices=0;
oi.numFaces=0; oi.numFaces=0;
@ -886,7 +898,12 @@ public:
{ {
if(line[0]=='v') if(line[0]=='v')
{ {
if(line[1]==' ') oi.numVertices++; if(line[1]==' ')
{
oi.numVertices++;
if(line.size()>=7)
bHasPerVertexColor = true;
}
if(line[1]=='t') oi.numTexCoords++; if(line[1]=='t') oi.numTexCoords++;
if(line[1]=='n') { if(line[1]=='n') {
oi.numNormals ++; oi.numNormals ++;
@ -902,15 +919,16 @@ public:
} }
oi.mask = 0; oi.mask = 0;
if (oi.numTexCoords) if (oi.numTexCoords)
{ {
if (oi.numTexCoords==oi.numVertices) if (oi.numTexCoords==oi.numVertices)
oi.mask |= vcg::tri::io::Mask::IOM_VERTTEXCOORD; oi.mask |= vcg::tri::io::Mask::IOM_VERTTEXCOORD;
oi.mask |= vcg::tri::io::Mask::IOM_WEDGTEXCOORD; oi.mask |= vcg::tri::io::Mask::IOM_WEDGTEXCOORD;
// Usually if you have tex coords you also have materials // Usually if you have tex coords you also have materials
oi.mask |= vcg::tri::io::Mask::IOM_FACECOLOR; oi.mask |= vcg::tri::io::Mask::IOM_FACECOLOR;
} }
if(bHasPerFaceColor) oi.mask |= vcg::tri::io::Mask::IOM_FACECOLOR; if(bHasPerFaceColor) oi.mask |= vcg::tri::io::Mask::IOM_FACECOLOR;
if(bHasPerVertexColor) oi.mask |= vcg::tri::io::Mask::IOM_VERTCOLOR;
if (bHasNormals) { if (bHasNormals) {
if (oi.numTexCoords==oi.numVertices) if (oi.numTexCoords==oi.numVertices)
oi.mask |= vcg::tri::io::Mask::IOM_VERTNORMAL; oi.mask |= vcg::tri::io::Mask::IOM_VERTNORMAL;