BOOL Exporter::CheckForAndExportFaceMap(Mtl* mtl, Mesh* mesh, int indentLevel)
{
if (!mtl || !mesh) {
return FALSE;
}
ULONG matreq = mtl->Requirements(-1);
// Are we using face mapping?
if (!(matreq & MTLREQ_FACEMAP)) {
return FALSE;
}
// OK, we have a FaceMap situation here...
for (int i=0; i<mesh->getNumFaces(); i++) {
Point3 tv[3];
Face* f = &mesh->faces[i];
make_face_uv(f, tv);
}
return TRUE;
}
void XsiExp::ExportMesh( INode * node, TimeValue t, int indentLevel)
{
ObjectState os = node->EvalWorldState(t);
if (!os.obj || os.obj->SuperClassID() != GEOMOBJECT_CLASS_ID)
{
return; // Safety net. This shouldn't happen.
}
BOOL needDel;
TriObject * tri = GetTriObjectFromNode(node, t, needDel);
if (!tri)
{
// no tri object
return;
}
// prepare mesh
Mesh * mesh = &tri->GetMesh();
mesh->buildNormals();
// object offset matrix; apply to verts
// swap y and z; max to soft correction
Matrix3 matrix(1);
// translate
matrix.PreTranslate( Point3( node->GetObjOffsetPos().x, node->GetObjOffsetPos().z, -node->GetObjOffsetPos().y));
// rotate
AngAxis aa( node->GetObjOffsetRot());
float temp = aa.axis.z;
aa.axis.z = -aa.axis.y;
aa.axis.y = temp;
PreRotateMatrix(matrix, Quat( aa));
// scale
ScaleValue scale = node->GetObjOffsetScale();
aa.Set( scale.q);
temp = aa.axis.z;
aa.axis.z = -aa.axis.y;
aa.axis.y = temp;
scale.q.Set( aa);
temp = scale.s.z;
scale.s.z = scale.s.y;
scale.s.y = temp;
ApplyScaling(matrix, scale);
// apply root transform
matrix = matrix * topMatrix;
// only rotation for normals
AffineParts ap;
Matrix3 rotMatrix(1);
decomp_affine( matrix, &ap);
PreRotateMatrix( rotMatrix, ap.q);
// set winding order
int vx1 = 0, vx2 = 1, vx3 = 2;
if (TMNegParity( node->GetNodeTM(GetStaticFrame())) != TMNegParity( matrix) )
{
// negative scaling; invert winding order and normal rotation
vx1 = 2; vx2 = 1; vx3 = 0;
rotMatrix = rotMatrix * Matrix3( Point3(-1,0,0), Point3(0,-1,0), Point3(0,0,-1), Point3(0,0,0));
}
// header
TSTR indent = GetIndent(indentLevel+1);
fprintf(pStream, "%s%s %s {\n",indent.data(), "Mesh", FixupName(node->GetName()));
// write number of verts
int numLoop = mesh->getNumVerts();
fprintf(pStream, "%s\t%d;\n",indent.data(), numLoop);
// write verts
for (int i = 0; i < numLoop; i++)
{
Point3 v = mesh->verts[i];
float temp = v.z;
v.z = -v.y;
v.y = temp;
v = matrix * v;
fprintf(pStream, "%s\t%.6f;%.6f;%.6f;%s\n", indent.data(), v.x, v.y, v.z,
i == numLoop - 1 ? ";\n" : ",");
}
// write number of faces
numLoop = mesh->getNumFaces();
fprintf(pStream, "%s\t%d;\n", indent.data(), numLoop);
// write faces
for (i = 0; i < numLoop; i++)
{
fprintf(pStream, "%s\t3;%d,%d,%d;%s\n",
indent.data(),
mesh->faces[i].v[vx1],
mesh->faces[i].v[vx2],
mesh->faces[i].v[vx3],
i == numLoop - 1 ? ";\n" : ",");
}
// face materials
Mtl * nodeMtl = node->GetMtl();
int numMtls = !nodeMtl || !nodeMtl->NumSubMtls() ? 1 : nodeMtl->NumSubMtls();
// write face material list header
fprintf(pStream, "%s\tMeshMaterialList {\n", indent.data());
// write number of materials
fprintf(pStream, "%s\t\t%d;\n", indent.data(), numMtls);
// write number of faces
fprintf(pStream, "%s\t\t%d;\n", indent.data(), numLoop);
// write face material indices (1 for each face)
for (i = 0; i < numLoop; i++)
{
int index = numMtls ? mesh->faces[i].getMatID() % numMtls : 0;
fprintf(pStream,"%s\t\t%d%s\n",
indent.data(),
index,
i == numLoop - 1 ? ";\n" : ",");
}
// write the materials
ExportMaterial( node, indentLevel+2);
// verts close brace
fprintf(pStream, "%s\t}\n\n",indent.data());
// write normals header
fprintf(pStream, "%s\t%s {\n", indent.data(), "SI_MeshNormals");
// write number of normals
fprintf(pStream, "%s\t\t%d;\n", indent.data(), numLoop * 3);
// write normals (3 for each face)
for (i = 0; i < numLoop; i++)
{
Face * f = &mesh->faces[i];
int vert = f->getVert(vx1);
Point3 vn = GetVertexNormal(mesh, i, mesh->getRVertPtr(vert));
float temp = vn.z;
vn.z = -vn.y;
vn.y = temp;
vn = rotMatrix * vn;
fprintf(pStream,"%s\t\t%.6f;%.6f;%.6f;,\n", indent.data(), vn.x, vn.y, vn.z);
vert = f->getVert(vx2);
vn = GetVertexNormal(mesh, i, mesh->getRVertPtr(vert));
temp = vn.z;
vn.z = -vn.y;
vn.y = temp;
vn = rotMatrix * vn;
fprintf(pStream,"%s\t\t%.6f;%.6f;%.6f;,\n", indent.data(), vn.x, vn.y, vn.z);
vert = f->getVert(vx3);
vn = GetVertexNormal(mesh, i, mesh->getRVertPtr(vert));
temp = vn.z;
vn.z = -vn.y;
vn.y = temp;
vn = rotMatrix * vn;
fprintf(pStream,"%s\t\t%.6f;%.6f;%.6f;%s\n", indent.data(), vn.x, vn.y, vn.z,
i == numLoop - 1 ? ";\n" : ",");
}
// write number of faces
fprintf(pStream, "%s\t\t%d;\n", indent.data(), numLoop);
// write faces
for (i = 0; i < numLoop; i++)
{
fprintf(pStream, "%s\t\t%d;3;%d,%d,%d;%s\n",
indent.data(),
i,
i * 3 + vx1, i * 3 + vx2, i * 3 + vx3,
i == numLoop - 1 ? ";\n" : ",");
}
// normals close brace
fprintf(pStream, "%s\t}\n\n",indent.data());
// texcoords
if (nodeMtl && mesh && (nodeMtl->Requirements(-1) & MTLREQ_FACEMAP))
{
// facemapping
numLoop = mesh->getNumFaces() * 3;
// write texture coords header
fprintf(pStream, "%s\tSI_MeshTextureCoords {\n", indent.data());
// write number of texture coords
fprintf(pStream, "%s\t\t%d;\n", indent.data(), numLoop);
// write texture coords
for (int i = 0; i < numLoop; i++)
{
Point3 tv[3];
Face * f = &mesh->faces[i];
make_face_uv( f, tv);
fprintf(pStream, "%s\t\t%.6f;%.6f;,\n", indent.data(), tv[0].x, tv[0].y);
fprintf(pStream, "%s\t\t%.6f;%.6f;,\n", indent.data(), tv[1].x, tv[1].y);
fprintf(pStream, "%s\t\t%.6f;%.6f;%s\n", indent.data(), tv[2].x, tv[2].y,
i == numLoop - 1 ? ";\n" : ",");
}
// write number of faces
numLoop = mesh->getNumFaces();
fprintf(pStream, "%s\t\t%d;\n", indent.data(), numLoop);
// write faces
for (i = 0; i < numLoop; i++)
{
fprintf(pStream,"%s\t\t%d;3;%d,%d,%d;%s\n",
indent.data(),
i,
mesh->tvFace[i].t[vx1],
mesh->tvFace[i].t[vx2],
mesh->tvFace[i].t[vx3],
i == numLoop - 1 ? ";\n" : ",");
}
// texture coords close brace
fprintf(pStream, "%s\t}\n\n", indent.data());
}
else
{
numLoop = mesh->getNumTVerts();
if (numLoop)
{
// write texture coords header
fprintf(pStream, "%s\tSI_MeshTextureCoords {\n", indent.data());
// write number of texture coords
fprintf(pStream, "%s\t\t%d;\n", indent.data(), numLoop);
// write texture coords
for (i = 0; i < numLoop; i++)
{
UVVert tv = mesh->tVerts[i];
fprintf(pStream, "%s\t\t%.6f;%.6f;%s\n", indent.data(), tv.x, tv.y,
i == numLoop - 1 ? ";\n" : ",");
}
// write number of faces
numLoop = mesh->getNumFaces();
fprintf(pStream, "%s\t\t%d;\n", indent.data(), numLoop);
// write faces
for (i = 0; i < numLoop; i++)
{
fprintf(pStream,"%s\t\t%d;3;%d,%d,%d;%s\n",
indent.data(),
i,
mesh->tvFace[i].t[vx1],
mesh->tvFace[i].t[vx2],
mesh->tvFace[i].t[vx3],
i == numLoop - 1 ? ";\n" : ",");
}
// texture coords close brace
fprintf(pStream, "%s\t}\n\n", indent.data());
}
}
/*
// Export color per vertex info
if (GetIncludeVertexColors()) {
int numCVx = mesh->numCVerts;
fprintf(pStream, "%s\t%s %d\n",indent.data(), ID_MESH_NUMCVERTEX, numCVx);
if (numCVx) {
fprintf(pStream,"%s\t%s {\n",indent.data(), ID_MESH_CVERTLIST);
for (i=0; i<numCVx; i++) {
Point3 vc = mesh->vertCol[i];
fprintf(pStream, "%s\t\t%s %d\t%s\n",indent.data(), ID_MESH_VERTCOL, i, Format(vc));
}
fprintf(pStream,"%s\t}\n",indent.data());
fprintf(pStream, "%s\t%s %d\n",indent.data(), ID_MESH_NUMCVFACES, mesh->getNumFaces());
fprintf(pStream, "%s\t%s {\n",indent.data(), ID_MESH_CFACELIST);
for (i=0; i<mesh->getNumFaces(); i++) {
fprintf(pStream,"%s\t\t%s %d\t%d\t%d\t%d\n",
indent.data(),
ID_MESH_CFACE, i,
mesh->vcFace[i].t[vx1],
mesh->vcFace[i].t[vx2],
mesh->vcFace[i].t[vx3]);
}
fprintf(pStream, "%s\t}\n",indent.data());
}
}
*/
// Mesh close brace
fprintf(pStream, "%s}\n",indent.data());
// dispose of tri object
if (needDel)
{
delete tri;
}
}
