TARGETS
operator ~ (TARGETS a)
{
vector < TARGETS > vts (a.nut.size ());
VT vt;
for (int i = 0; i < a.nut.size (); ++i) //将 a.nut 按行（与结构）每个元素取~后
for (int j = 0; j < a.nut[i].size (); ++j)
{ //竖排（或结构）形成一个targets, 共a.nut.size()个
vt.clear ();
vt.push_back (~a.nut[i][j]);
vts[i].nut.push_back (vt);
} TARGETS
tmp = vts[0];
for (int i = 1; i < vts.size (); ++i) //将这些targets连&
tmp = tmp & vts[i];
for (int i = 0; i < tmp.nut.size (); ++i) //归整每行（与结构）
unique (tmp.nut[i].begin (), tmp.nut[i].end ());
unique (tmp.nut.begin (), tmp.nut.end ()); //归整所有行（或结构）
return tmp;
}
bool RendererLegacy::BufferStaticMesh(StaticMesh *mesh)
{
const AttributeSet set = mesh->GetAttributeSet();
bool background = false;
bool model = false;
//XXX does this really have to support every case. I don't know.
if (set == (ATTRIB_POSITION | ATTRIB_NORMAL | ATTRIB_UV0))
model = true;
else if (set == (ATTRIB_POSITION | ATTRIB_DIFFUSE))
background = true;
else
return false;
MeshRenderInfo *meshInfo = new MeshRenderInfo();
mesh->SetRenderInfo(meshInfo);
const int totalVertices = mesh->GetNumVerts();
//surfaces should have a matching vertex specification!!
int indexAdjustment = 0;
VertexBuffer *buf = 0;
for (StaticMesh::SurfaceIterator surface = mesh->SurfacesBegin(); surface != mesh->SurfacesEnd(); ++surface) {
const int numsverts = (*surface)->GetNumVerts();
const VertexArray *va = (*surface)->GetVertices();
int offset = 0;
if (model) {
ScopedArray<ModelVertex> vts(new ModelVertex[numsverts]);
for(int j=0; j<numsverts; j++) {
vts[j].position = va->position[j];
vts[j].normal = va->normal[j];
vts[j].uv = va->uv0[j];
}
if (!buf)
buf = new VertexBuffer(totalVertices);
buf->Bind();
buf->BufferData<ModelVertex>(numsverts, vts.Get());
} else if (background) {
ScopedArray<UnlitVertex> vts(new UnlitVertex[numsverts]);
for(int j=0; j<numsverts; j++) {
vts[j].position = va->position[j];
vts[j].color = va->diffuse[j];
}
if (!buf)
buf= new UnlitVertexBuffer(totalVertices);
buf->Bind();
offset = buf->BufferData<UnlitVertex>(numsverts, vts.Get());
}
SurfaceRenderInfo *surfaceInfo = new SurfaceRenderInfo();
surfaceInfo->glOffset = offset;
surfaceInfo->glAmount = numsverts;
(*surface)->SetRenderInfo(surfaceInfo);
//buffer indices from each surface, if in use
if ((*surface)->IsIndexed()) {
assert(background == false);
//XXX should do this adjustment in RendererGL2Buffers
const unsigned short *originalIndices = (*surface)->GetIndexPointer();
std::vector<unsigned short> adjustedIndices((*surface)->GetNumIndices());
for (int i = 0; i < (*surface)->GetNumIndices(); ++i)
adjustedIndices[i] = originalIndices[i] + indexAdjustment;
if (!meshInfo->ibuf)
meshInfo->ibuf = new IndexBuffer(mesh->GetNumIndices());
meshInfo->ibuf->Bind();
const int ioffset = meshInfo->ibuf->BufferIndexData((*surface)->GetNumIndices(), &adjustedIndices[0]);
surfaceInfo->glOffset = ioffset;
surfaceInfo->glAmount = (*surface)->GetNumIndices();
indexAdjustment += (*surface)->GetNumVerts();
}
}
assert(buf);
meshInfo->vbuf = buf;
mesh->cached = true;
return true;
}
