void NifImporter::SetNormals(Mesh& mesh, const vector<Niflib::Triangle>& tris, const vector<Niflib::Vector3>& n)
{
mesh.checkNormals(TRUE);
if (n.size() > 0)
{
bool needNormals = false;
for (unsigned int i=0; i<n.size(); i++){
Vector3 v = n[i];
Point3 norm(v.x, v.y, v.z);
if (norm != mesh.getNormal(i)) {
needNormals = true;
break;
}
}
if (needNormals)
{
#if VERSION_3DSMAX > ((5000<<16)+(15<<8)+0) // Version 5
mesh.SpecifyNormals();
MeshNormalSpec *specNorms = mesh.GetSpecifiedNormals ();
if (NULL != specNorms)
{
specNorms->ClearAndFree();
specNorms->SetNumFaces(tris.size());
specNorms->SetNumNormals(n.size());
Point3* norms = specNorms->GetNormalArray();
for (unsigned int i=0; i<n.size(); i++){
Vector3 v = n[i];
norms[i] = Point3(v.x, v.y, v.z);
}
MeshNormalFace* pFaces = specNorms->GetFaceArray();
for (unsigned int i=0; i<tris.size(); i++){
const Triangle& tri = tris[i];
pFaces[i].SpecifyNormalID(0, tri.v1);
pFaces[i].SpecifyNormalID(1, tri.v2);
pFaces[i].SpecifyNormalID(2, tri.v3);
}
#if VERSION_3DSMAX > ((7000<<16)+(15<<8)+0) // Version 7+
specNorms->SetAllExplicit(true);
#else
for (int i=0; i<specNorms->GetNumNormals(); ++i) {
specNorms->SetNormalExplicit(i, true);
}
#endif
specNorms->CheckNormals();
}
#endif
}
}
}
void SymmetryMod::ModifyTriObject (TimeValue t, ModContext &mc, TriObject *tobj, INode *inode) {
Mesh &mesh = tobj->GetMesh();
Interval iv = FOREVER;
int axis, slice, weld, flip;
float threshold;
mp_pblock->GetValue (kSymAxis, t, axis, iv);
mp_pblock->GetValue (kSymFlip, t, flip, iv);
mp_pblock->GetValue (kSymSlice, t, slice, iv);
mp_pblock->GetValue (kSymWeld, t, weld, iv);
mp_pblock->GetValue (kSymThreshold, t, threshold, iv);
if (threshold<0) threshold=0;
// Get transform from mirror controller:
Matrix3 tm = CompMatrix (t, NULL, &mc, &iv);
Matrix3 itm = Inverse (tm);
// Get DotProd(N,x)=offset plane definition from transform
Point3 Axis(0,0,0);
Axis[axis] = flip ? -1.0f : 1.0f;
Point3 origin = tm.GetTrans();
Point3 N = Normalize(tm*Axis - origin);
float offset = DotProd (N, origin);
// Slice operation does not handle NormalSpecs, but it handles mapping channels.
// move our mesh normal data to a map channel
MeshNormalSpec *pNormals = mesh.GetSpecifiedNormals ();
int normalMapChannel = INVALID_NORMALMAPCHANNEL;
if (pNormals && pNormals->GetNumFaces())
{
pNormals->SetParent(&mesh);
//find an empty map channel
for (int mp = 0; mp < mesh.getNumMaps(); mp++)
{
if (!mesh.mapSupport(mp))
{
normalMapChannel = mp;
mesh.setMapSupport(normalMapChannel,TRUE);
MeshMap& map = mesh.Map(normalMapChannel);
for (int i = 0; i < map.fnum; i++)
{
for (int j = 0; j < 3; j++)
{
unsigned int newID = pNormals->Face(i).GetNormalID(j);
map.tf[i].t[j] = newID;
}
}
map.setNumVerts(pNormals->GetNumNormals());
for (int i = 0; i < map.vnum; i++)
{
map.tv[i] = pNormals->Normal(i);
}
// make sure nothing is done with MeshNormalSpec (until data is copied back)
pNormals->Clear();
break;
}
}
}
// Slice off everything below the plane.
if (slice) SliceTriObject (mesh, N, offset);
MirrorTriObject (mesh, axis, tm, itm,normalMapChannel);
if (weld) WeldTriObject (mesh, N, offset, threshold);
//now move the normals back
if (pNormals && normalMapChannel != -1)
{
MeshMap& map = mesh.Map(normalMapChannel);
pNormals->SetNumFaces(map.fnum);
pNormals->SetNumNormals(map.vnum);
pNormals->SetAllExplicit(true);
BitArray temp;
temp.SetSize(map.vnum);
temp.SetAll();
pNormals->SpecifyNormals(TRUE,&temp);
for (int i = 0; i < map.vnum; i++)
{
pNormals->GetNormalArray()[i] = map.tv[i];
pNormals->SetNormalExplicit(i,true);
}
for (int i = 0; i < map.fnum; i++)
{
for (int j = 0; j < 3; j++)
{
pNormals->SetNormalIndex(i,j,map.tf[i].t[j]);
MeshNormalFace& face = pNormals->Face(i);
face.SpecifyAll(true);
}
}
pNormals->SetFlag(MESH_NORMAL_MODIFIER_SUPPORT);
for (int i = 0; i < pNormals->GetNumFaces(); i++)
{
for (int j = 0; j < 3; j++)
{
int id = pNormals->GetNormalIndex(i,j);
}
}
pNormals->CheckNormals();
pNormals->SetParent(NULL);
// Free the map channel
mesh.setMapSupport(normalMapChannel,FALSE);
}
tobj->UpdateValidity (GEOM_CHAN_NUM, iv);
tobj->UpdateValidity (TOPO_CHAN_NUM, iv);
tobj->UpdateValidity (VERT_COLOR_CHAN_NUM, iv);
tobj->UpdateValidity (TEXMAP_CHAN_NUM, iv);
tobj->UpdateValidity (SELECT_CHAN_NUM, iv);
}
void WMOGroupImpl::buildMaxData()
{
// Group Header Node
INode* groupHeadNode = createGroupHeaderNode();
groupHeadNode->SetGroupHead(TRUE);
groupHeadNode->SetGroupMember(FALSE);
// Geoset
// 一个Render Batch构造一个Node, 并且加入到组中
for (int i = 0; i < m_batchCount; ++i)
{
WMORenderBatch& renderBatch = m_batchData[i];
m_wmoImporter->m_logStream << "Model Geoset " << i << " Vertex Info: "
<< renderBatch.vertexStart << " -- " << renderBatch.vertexEnd << endl;
m_wmoImporter->m_logStream << "Model Geoset " << i << " Index Info: "
<< renderBatch.indexStart << " -- " << renderBatch.indexCount << endl;
// Triangle Mesh Object
// 基本的三角形模型对象
TriObject* triObject = CreateNewTriObject();
// 创建Node, 并且设为Group Header Node的子节点
ImpNode* tmpImpNode = m_wmoImporter->m_impInterface->CreateNode();
tmpImpNode->Reference(triObject);
m_wmoImporter->m_impInterface->AddNodeToScene(tmpImpNode);
INode* realINode = tmpImpNode->GetINode();
realINode->SetGroupHead(FALSE);
realINode->SetGroupMember(TRUE);
groupHeadNode->AttachChild(realINode);
m_geosetNodeList.push_back(realINode);
TCHAR nodeName[256];
sprintf(nodeName, "%s_part_%03d", m_groupName.c_str(), i);
realINode->SetName(nodeName);
// mesh
unsigned short vertexCount = renderBatch.vertexEnd - renderBatch.vertexStart + 1;
unsigned int trigangleCount = renderBatch.indexCount / 3;
Mesh& mesh = triObject->GetMesh();
mesh.setNumVerts(vertexCount);
mesh.setNumTVerts(vertexCount, TRUE);
mesh.setNumFaces(trigangleCount);
mesh.setNumTVFaces(trigangleCount);
// 顶点坐标和UV
for (int i = 0; i < vertexCount; ++i)
{
mesh.verts[i] = *(Point3*)(&(m_vertexData[renderBatch.vertexStart + i]));
// UV坐标反转
mesh.tVerts[i].x = m_textureCoords[renderBatch.vertexStart + i].x;
mesh.tVerts[i].y = 1.0f - m_textureCoords[renderBatch.vertexStart + i].y;
}
// 三角形
for (unsigned int i = 0; i < trigangleCount; ++i)
{
Face& face = mesh.faces[i];
int index1 = m_indexData[renderBatch.indexStart + i*3] - renderBatch.vertexStart;
int index2 = m_indexData[renderBatch.indexStart + i*3+1] - renderBatch.vertexStart;
int index3 = m_indexData[renderBatch.indexStart + i*3+2] - renderBatch.vertexStart;
face.setVerts(index1, index2, index3);
face.Show();
face.setEdgeVisFlags(EDGE_VIS, EDGE_VIS, EDGE_VIS);
TVFace& tface = mesh.tvFace[i];
tface.setTVerts(index1, index2, index3);
}
// 法线
mesh.SpecifyNormals();
MeshNormalSpec *specNorms = mesh.GetSpecifiedNormals();
if (specNorms)
{
specNorms->ClearAndFree();
specNorms->SetNumFaces(trigangleCount);
specNorms->SetNumNormals(vertexCount);
Point3* norms = specNorms->GetNormalArray();
for (int i = 0; i < vertexCount; ++i)
{
norms[i] = *(Point3*)(&m_normalData[renderBatch.vertexStart + i]);
}
MeshNormalFace* pFaces = specNorms->GetFaceArray();
for (unsigned int i = 0; i < trigangleCount; ++i)
{
int index1 = m_indexData[renderBatch.indexStart + i*3] - renderBatch.vertexStart;
int index2 = m_indexData[renderBatch.indexStart + i*3+1] - renderBatch.vertexStart;
int index3 = m_indexData[renderBatch.indexStart + i*3+2] - renderBatch.vertexStart;
pFaces[i].SpecifyNormalID(0, index1);
pFaces[i].SpecifyNormalID(1, index2);
pFaces[i].SpecifyNormalID(2, index3);
}
specNorms->SetAllExplicit(true);
specNorms->CheckNormals();
}
// 删除重复的和无效的面
mesh.RemoveDegenerateFaces();
mesh.RemoveIllegalFaces();
realINode->SetMtl(m_wmoImporter->m_materialList[renderBatch.texture]);
//realINode->BackCull(FALSE); // 取消背面裁减 不是所有的Node都要取消背面裁减
realINode->EvalWorldState(0);
}
}
// 1. 加载模型顶点数据
void M2Importer::importGeomObject()
{
// Group Header Node
INode* groupHeadNode = createGroupHeaderNode();
groupHeadNode->SetGroupHead(TRUE);
groupHeadNode->SetGroupMember(FALSE);
if (m_modelHeader->nameLength > 1)
{
TCHAR* modelName = (TCHAR*)(m_m2FileData + m_modelHeader->nameOfs);
groupHeadNode->SetName(modelName);
m_logStream << "ModelName: " << modelName << endl;
}
else
groupHeadNode->SetName("GeomGroup");
// Geoset
// 一个Geoset构造一个Node, 并且加入到组中
unsigned short* verDataIndex = (unsigned short*)(m_m2FileData + m_modelView->ofsIndex);
unsigned short* triData = (unsigned short*)(m_m2FileData + m_modelView->ofsTris);
m_geosetNodeList.reserve(m_modelView->nSub);
m_materialList.reserve(m_modelView->nSub);
for (unsigned int i = 0; i < m_modelView->nSub; ++i)
m_materialList.push_back(0);
for (unsigned int i = 0; i < m_modelView->nSub; ++i)
{
ModelGeoset& geosetData = m_modelGeoset[i];
// Triangle Mesh Object
// 基本的三角形模型对象
TriObject* triObject = CreateNewTriObject();
// 创建Node, 并且设为Group Header Node的子节点
ImpNode* tmpImpNode = m_impInterface->CreateNode();
tmpImpNode->Reference(triObject);
//tmpImpNode->SetPivot(*(Point3*)&(geosetData.v));
m_impInterface->AddNodeToScene(tmpImpNode);
INode* realINode = tmpImpNode->GetINode();
realINode->SetGroupHead(FALSE);
realINode->SetGroupMember(TRUE);
groupHeadNode->AttachChild(realINode);
m_geosetNodeList.push_back(realINode);
TCHAR nodeName[256];
sprintf(nodeName, "GeosetPart_%d", i);
realINode->SetName(nodeName);
// mesh
Mesh& mesh = triObject->GetMesh();
mesh.setNumVerts(geosetData.vcount);
mesh.setNumTVerts(geosetData.vcount, TRUE);
unsigned int triangeCount = geosetData.icount / 3;
mesh.setNumFaces(triangeCount);
mesh.setNumTVFaces(triangeCount);
m_logStream << "Model Geoset " << i << " Vertex Count: " << geosetData.vcount << endl;
m_logStream << "Model Geoset " << i << " Index Count: " << triangeCount << endl;
// 顶点坐标和UV
for (unsigned int i = 0; i < geosetData.vcount; ++i)
{
ModelVertex& vertexData = m_globalVertices[ verDataIndex[geosetData.vstart + i] ];
mesh.verts[i] = *(Point3*)(&vertexData.pos);
// UV坐标反转
mesh.tVerts[i].x = vertexData.texcoords.x;
mesh.tVerts[i].y = 1.0f - vertexData.texcoords.y;
}
// 三角形
for (unsigned int i = 0; i < triangeCount; ++i)
{
Face& face = mesh.faces[i];
face.setVerts(triData[geosetData.istart + i*3] - m_indexCount,
triData[geosetData.istart + i*3+1] - m_indexCount,
triData[geosetData.istart + i*3+2] - m_indexCount);
face.Show();
face.setEdgeVisFlags(EDGE_VIS, EDGE_VIS, EDGE_VIS);
TVFace& tface = mesh.tvFace[i];
tface.setTVerts(triData[geosetData.istart + i*3] - m_indexCount,
triData[geosetData.istart + i*3+1] - m_indexCount,
triData[geosetData.istart + i*3+2] - m_indexCount);
}
// 法线
mesh.SpecifyNormals();
MeshNormalSpec *specNorms = mesh.GetSpecifiedNormals();
if (specNorms)
{
specNorms->ClearAndFree();
specNorms->SetNumFaces(triangeCount);
specNorms->SetNumNormals(geosetData.vcount);
Point3* norms = specNorms->GetNormalArray();
for (unsigned int i = 0; i < geosetData.vcount; ++i)
{
ModelVertex& vertexData = m_globalVertices[ verDataIndex[geosetData.vstart + i] ];
norms[i] = *(Point3*)(&vertexData.normal);
}
MeshNormalFace* pFaces = specNorms->GetFaceArray();
for (unsigned int i = 0; i < triangeCount; ++i)
{
pFaces[i].SpecifyNormalID(0, triData[geosetData.istart + i*3] - m_indexCount);
pFaces[i].SpecifyNormalID(1, triData[geosetData.istart + i*3+1] - m_indexCount);
pFaces[i].SpecifyNormalID(2, triData[geosetData.istart + i*3+2] - m_indexCount);
}
specNorms->SetAllExplicit(true);
specNorms->CheckNormals();
}
// 删除重复的和无效的面
mesh.RemoveDegenerateFaces();
mesh.RemoveIllegalFaces();
//realINode->BackCull(FALSE); // 取消背面裁减 双面绘制与取消背面裁减一起设置
realINode->EvalWorldState(0);
// 索引值修正
m_indexCount += geosetData.vcount;
}
// 加载材质
unsigned short* texLookupData = (unsigned short*)(m_m2FileData + m_modelHeader->ofsTexLookup);
ModelTextureDef* texUnitDefData = (ModelTextureDef*)(m_m2FileData + m_modelHeader->ofsTextures);
ModelTexUnit* texUnitData = (ModelTexUnit*)(m_m2FileData + m_modelView->ofsTex);
for (unsigned int i = 0; i < m_modelView->nTex; ++i)
{
ModelTexUnit& texUnit = texUnitData[i];
unsigned short textureID = texLookupData[texUnit.textureid];
ModelTextureDef& texDef = texUnitDefData[textureID];
string textureName;
if (texDef.type == 0)
textureName = (LPCSTR)(m_m2FileData + texDef.nameOfs);
else
textureName = getReplacableTexture(texDef.type);
StdMat2* material = m_materialList[texUnit.op];
if (!material)
material = createMaterial();
// 根据混合属性决定加在第几层
material->SetSubTexmap(ID_DI, createTexture(textureName.c_str()));
material->EnableMap(ID_DI, TRUE);
//material->SetTwoSided(TRUE); // 双面 设置了此标志的才打开
m_maxInterface->GetMaterialLibrary().Add(material);
m_geosetNodeList[texUnit.op]->SetMtl(material);
}
m_maxInterface->RedrawViews(m_maxInterface->GetTime());
}