C++ TriObject::PointsWereChanged方法代码示例

void OptMod::ModifyObject(TimeValue t, ModContext &mc, ObjectState *os, INode *node)
	{
	float faceThresh, edgeThresh, bias, maxEdge;
	int preserveMat, preserveSmooth, which, render=0, autoEdge;
	DWORD flags = 0;
	Interval valid = FOREVER;
	int nv,nf;

	int man;
	pblock->GetValue(PB_MANUPDATE,t,man,valid);
	if (man && !forceUpdate && !TestAFlag(A_RENDER)) return;
	forceUpdate = FALSE;

	if (TestAFlag(A_RENDER)) {
		pblock->GetValue(PB_RENDER,t,which,valid);
	} else {
		pblock->GetValue(PB_VIEWS,t,which,valid);
		}	
	
	pblock->GetValue(PB_AUTOEDGE,t,autoEdge,valid);

	if (which==0) {
		pblock->GetValue(PB_FACETHRESH1,t,faceThresh,valid);
		pblock->GetValue(PB_EDGETHRESH1,t,edgeThresh,valid);	
		pblock->GetValue(PB_BIAS1,t,bias,valid);
		pblock->GetValue(PB_PRESERVEMAT1,t,preserveMat,valid);
		pblock->GetValue(PB_PRESERVESMOOTH1,t,preserveSmooth,valid);
		pblock->GetValue(PB_MAXEDGE1,t,maxEdge,valid);
	} else {
		pblock->GetValue(PB_FACETHRESH2,t,faceThresh,valid);
		pblock->GetValue(PB_EDGETHRESH2,t,edgeThresh,valid);	
		pblock->GetValue(PB_BIAS2,t,bias,valid);
		pblock->GetValue(PB_PRESERVEMAT2,t,preserveMat,valid);
		pblock->GetValue(PB_PRESERVESMOOTH2,t,preserveSmooth,valid);
		pblock->GetValue(PB_MAXEDGE2,t,maxEdge,valid);
		}
	
	assert(os->obj->IsSubClassOf(triObjectClassID));
	TriObject *triOb = (TriObject *)os->obj;
	nv = triOb->GetMesh().getNumVerts();
	nf = triOb->GetMesh().getNumFaces();

	if (preserveMat) flags |= OPTIMIZE_SAVEMATBOUNDRIES;
	if (preserveSmooth) flags |= OPTIMIZE_SAVESMOOTHBOUNDRIES;
	if (autoEdge) flags |= OPTIMIZE_AUTOEDGE;

	if (faceThresh!=0.0f) {
		GetAsyncKeyState(VK_ESCAPE); // clear the state
		HCURSOR hCur;
		if (nf > 2000) hCur = SetCursor(LoadCursor(NULL,IDC_WAIT));

		triOb->GetMesh().Optimize(
			faceThresh,edgeThresh, bias*0.5f, maxEdge, flags,this);

		if (nf > 200) SetCursor(hCur);
		}

	triOb->GetMesh().InvalidateTopologyCache ();
	triOb->PointsWereChanged();
	triOb->UpdateValidity(GEOM_CHAN_NUM,valid);
	triOb->UpdateValidity(TOPO_CHAN_NUM,valid);
	triOb->UpdateValidity (TEXMAP_CHAN_NUM, valid);
	triOb->UpdateValidity (VERT_COLOR_CHAN_NUM, valid);

	if (pmapParam && pmapParam->GetParamBlock()==pblock && !TestAFlag(A_RENDER)) {
		TSTR buf;
		buf.printf("%d / %d",nv,triOb->GetMesh().getNumVerts());
		SetWindowText(GetDlgItem(pmapParam->GetHWnd(),IDC_OPT_VERTCOUNT),buf);
		buf.printf("%d / %d",nf,triOb->GetMesh().getNumFaces());
		SetWindowText(GetDlgItem(pmapParam->GetHWnd(),IDC_OPT_FACECOUNT),buf);
		}
	}

void BombMod::ModifyObject(
		TimeValue t, ModContext &mc, ObjectState *os, INode *node)
	{	
	BombObject *bobj = GetWSMObject(t);

   if (bobj && nodeRef && (bobj->ClassID() == Class_ID(BOMB_OBJECT_CLASS_ID,0))) {
		assert(os->obj->IsSubClassOf(triObjectClassID));
		TriObject *triOb = (TriObject *)os->obj;
		Interval valid = FOREVER;

		if (os->GetTM()) {
			Matrix3 tm = *(os->GetTM());
			for (int i=0; i<triOb->GetMesh().getNumVerts(); i++) {
				triOb->GetMesh().verts[i] = triOb->GetMesh().verts[i] * tm;
				}			
			os->obj->UpdateValidity(GEOM_CHAN_NUM,os->tmValid());
			os->SetTM(NULL,FOREVER);
			}
		
		if (waitPostLoad) {
			valid.SetInstant(t);
			triOb->UpdateValidity(GEOM_CHAN_NUM,valid);
			triOb->UpdateValidity(TOPO_CHAN_NUM,valid);
			return;
			}		

		Matrix3 tm;		
		TimeValue det  = bobj->GetDetonation(t,valid);	
		float strength = bobj->GetStrength(t,valid) * STRENGTH_CONSTANT;
		float grav     = bobj->GetGravity(t,valid);		
		float chaos    = bobj->GetChaos(t,valid);
		float chaosBase = (float(1)-chaos/2);
		float rotSpeed = bobj->GetSpin(t,valid) * TWOPI/float(TIME_TICKSPERSEC);
		int minClust = bobj->GetMinFrag(t,valid), maxClust = bobj->GetMaxFrag(t,valid);
		if (minClust<1) minClust = 1;
		if (maxClust<1) maxClust = 1;
		int clustVar = maxClust-minClust+1;
		float falloff = bobj->GetFalloff(t,valid);
		int useFalloff = bobj->GetFalloffOn(t,valid);
		int seed = bobj->GetSeed(t,valid);		

		//tm = nodeRef->GetNodeTM(t,&valid);		
		tm = nodeRef->GetObjectTM(t,&valid);
		
		if (t<det) {
			valid.Set(TIME_NegInfinity,det-1);
			triOb->UpdateValidity(GEOM_CHAN_NUM,valid);
			triOb->UpdateValidity(TOPO_CHAN_NUM,valid);
			triOb->PointsWereChanged();		
			return;		
			}

		float dt = float(t-det);
		valid.SetInstant(t);

		int n0=0,n1=1,n2=2,nv;
		Point3 v, p0, p1, g(0.0f,0.0f,grav*GRAVITY_CONSTANT);
		Tab<Point3> l_newVerts ; 

		Face *f = triOb->GetMesh().faces;
		float dot;		

		Mesh &mesh = triOb->GetMesh();

		// First, segment the faces.
		srand((unsigned int)seed);		
		Tab<DWORD> vclust;
		Tab<DWORD> vmap;
		Tab<Point3> nverts;
		vclust.SetCount(mesh.getNumVerts());
		vmap.SetCount(mesh.getNumVerts());		
		int numClust = 0;

		if (minClust==1 && maxClust==1) {
			// Simple case... 1 face per cluster
			nv = triOb->GetMesh().getNumFaces() * 3;
			l_newVerts.SetCount(nv);
			vclust.SetCount(nv);
			for (int i=0; i<nv; i++) {
				vclust[i] = i/3;
				}
         for (int i=0,j=0; i<mesh.getNumFaces(); i++) {
				l_newVerts[j]   = mesh.verts[mesh.faces[i].v[0]];
				l_newVerts[j+1] = mesh.verts[mesh.faces[i].v[1]];
				l_newVerts[j+2] = mesh.verts[mesh.faces[i].v[2]];
				mesh.faces[i].v[0] = j;
				mesh.faces[i].v[1] = j+1;
				mesh.faces[i].v[2] = j+2;
				j += 3;
				}
			numClust = triOb->GetMesh().getNumFaces();
		} else {
			// More complex case... clusters are randomely sized
			for (int i=0; i<mesh.getNumVerts(); i++) {
				vclust[i] = UNDEFINED;
				vmap[i] = i;
				}
			int cnum = 0;
         for (int i=0; i<mesh.getNumFaces(); ) {
				int csize = int(Rand1()*float(clustVar)+float(minClust));
//.........这里部分代码省略.........