C++ TextureOutput类代码示例

void Output::Init() {
	ivalid.SetEmpty();
	if (texout) texout->Reset();
	else ReplaceReference( 1, GetNewDefaultTextureOutput());	
	texout->SetRollupOpen(1);
	mapOn[0] = 1;
	}

void Noise::Init() {
	if (xyzGen) xyzGen->Reset();
	else ReplaceReference( XYZGEN_REF, GetNewDefaultXYZGen());	
	if (texout) texout->Reset();
	else ReplaceReference( TEXOUT_REF, GetNewDefaultTextureOutput());		
	ivalid.SetEmpty();
	cacheValid.SetEmpty();
	macroRecorder->Disable();  // disable macrorecorder during reset
		SetColor(0, Color(0.0f,0.0f,0.0f), TimeValue(0));
		SetColor(1, Color(1.0f,1.0f,1.0f), TimeValue(0));
		noiseType = NOISE_REGULAR;
#ifndef RENDER_VER
        RegisterDistanceDefault(_T("Noise Params"), _T("Size"), DEFAULT_NOISE_SIZE, IN_TO_M(DEFAULT_NOISE_SIZE));
        float size = GetDistanceDefault(_T("Noise Params"), _T("Size"));
		SetSize(size, TimeValue(0));
#else
		SetSize(DEFAULT_NOISE_SIZE, TimeValue(0));
#endif
		SetPhase(.0f,TimeValue(0));
		SetLevels(3.0f,TimeValue(0));
		pblock->SetValue(noise_hithresh,0,1.0f);
        
	macroRecorder->Enable();
	for (int i=0; i<NSUBTEX; i++) 
		mapOn[i] = 1;
	}

void CellTex::Init()
	{
	if (xyzGen) xyzGen->Reset();
	else ReplaceReference(1, GetNewDefaultXYZGen());

	if (texout) texout->Reset();
	else ReplaceReference(2, GetNewDefaultTextureOutput());

    RegisterDistanceDefault(_T("Cellular Params"), _T("Size"), 5.0f, IN_TO_M(5.0f));
    float size = GetDistanceDefault(_T("Cellular Params"), _T("Size"));
	pblock->SetValue(cellular_size,0,size);

/*
	pblock->SetValue(PB_CELLCOL,0,Point3(1,1,1));
	pblock->SetValue(PB_DIVCOL1,0,Point3(.5f,.5f,.5f));
	pblock->SetValue(PB_DIVCOL2,0,Point3(0,0,0));
	pblock->SetValue(PB_SIZE,0,5.0f);
	pblock->SetValue(PB_SPREAD,0,0.5f);
	pblock->SetValue(PB_LOW,0,0.0f);
	pblock->SetValue(PB_MID,0,0.5f);
	pblock->SetValue(PB_HIGH,0,1.0f);
	pblock->SetValue(PB_FRACT,0,0);
	pblock->SetValue(PB_ITER,0,3.0f);
	pblock->SetValue(PB_USECELLMAP,0,1);
	pblock->SetValue(PB_USEDIV1MAP,0,1);
	pblock->SetValue(PB_USEDIV2MAP,0,1);
	pblock->SetValue(PB_SMOOTH,0,0.1f);	
	pblock->SetValue(PB_ADAPT,0,1);	
	if (paramDlg)  
		paramDlg->pmap->SetParamBlock(pblock);
*/
	fract = 0;
	ivalid.SetEmpty();
	}

void Gradient::Init() 
	{
	if (uvGen) uvGen->Reset();
	else ReplaceReference( UVGEN_REF, GetNewDefaultUVGen());	
	if (texout) texout->Reset();
	else ReplaceReference( TEXOUT_REF, GetNewDefaultTextureOutput());
	ivalid.SetEmpty();
	}

AColor CellTex::EvalColor(ShadeContext& sc)
	{	
	// Get object point
	Point3 p,dp;
	if (gbufID) sc.SetGBufferID(gbufID);
	xyzGen->GetXYZ(sc,p,dp);
	p += ptOffset;
	p = p/size;
	
	// Eval maps
	Color cellC, div1C, div2C;
	if (useCellMap && subTex[0]) cellC = subTex[0]->EvalColor(sc);
	else cellC = cellCol;
	if (useDiv1Map && subTex[1]) div1C = subTex[1]->EvalColor(sc);
	else div1C = divCol1;
	if (useDiv2Map && subTex[2]) div2C = subTex[2]->EvalColor(sc);
	else div2C = divCol2;

	// Evaluate cell function
	float dist[2];
	int ids[2];
	float u;
	if (type) {
		if (fract) FractalCellFunction(p,iterations,rough,2,dist,ids);
		else CellFunction(p,2,dist,ids);
		u = 1.0f - (dist[1]-dist[0])/spread;		
	} else {
		if (fract) FractalCellFunction(p,iterations,rough,1,dist,ids);
		else CellFunction(p,1,dist,ids);
		u = dist[0]/spread;
		}

	// Vari cell color
	if (var>0.0f) {
		float vr = RandFromCellID(ids[0])*var + varOff;
		cellC.r = cellC.r*vr;
		cellC.g = cellC.g*vr;
		cellC.b = cellC.b*vr;
		cellC.ClampMinMax();		
		}

	if (u<low) return texout->Filter(RGBA(cellC));
	if (u>high) return texout->Filter(RGBA(div2C));
	if (u<mid) {
		u = (u-low)/(midMinuslow);
		return texout->Filter(RGBA(div1C*u + (1.0f-u)*cellC));
	} else {
		u = (u-mid)/(highMinusmid);
		return texout->Filter(RGBA(div2C*u + (1.0f-u)*div1C));
		}
	}

RGBA Noise::EvalColor(ShadeContext& sc) {
	Point3 p,dp;
	if (!sc.doMaps) return black;

	AColor c;
	if (sc.GetCache(this,c)) 
		return c; 

	if (gbufID) sc.SetGBufferID(gbufID);

	//IPoint2 ps = sc.ScreenCoord();
  	UpdateCache(sc.CurTime());  // DS 10/3/00
	xyzGen->GetXYZ(sc,p,dp);
	p /= size;	   
	filter = sc.filterMaps;
	
	float smw;
	float limlev = LimitLevel(dp,smw);
    float d = NoiseFunction(p,limlev,smw);

	RGBA c0 = mapOn[0]&&subTex[0] ? subTex[0]->EvalColor(sc): col[0];
	RGBA c1 = mapOn[1]&&subTex[1] ? subTex[1]->EvalColor(sc): col[1];
	c = texout->Filter((1.0f-d)*c0 + d*c1);
	
	sc.PutCache(this,c); 
	return c;
	}

ParamDlg* Output::CreateParamDlg(HWND hwMtlEdit, IMtlParams *imp) {
	// create the rollout dialogs
	IAutoMParamDlg* masterDlg = maskCD.CreateParamDlgs(hwMtlEdit, imp, this);
	texoutDlg = texout->CreateParamDlg(hwMtlEdit, imp);
	// add the secondary dialogs to the master
	masterDlg->AddDlg(texoutDlg);
	return masterDlg;

	}

AColor Gradient::EvalColor(ShadeContext& sc) {
	if (!sc.doMaps) 
		return black;
	AColor c;
	if (sc.GetCache(this,c)) 
		return c; 
	if (gbufID) sc.SetGBufferID(gbufID);
	c = texout->Filter(uvGen->EvalUVMap(sc,&mysamp));
	sc.PutCache(this,c); 
	return c;
	}

float Gradient::EvalMono(ShadeContext& sc) {
	if (!sc.doMaps) 
		return 0.0f;
	float f;
	if (sc.GetCache(this,f)) 
		return f; 
	if (gbufID) sc.SetGBufferID(gbufID);
	f = texout->Filter(uvGen->EvalUVMapMono(sc,&mysamp));
	sc.PutCache(this,f); 
	return f;
	}

ParamDlg* CellTex::CreateParamDlg(HWND hwMtlEdit, IMtlParams *imp)
	{
//	paramDlg = new CellTexParamDlg(this,imp,hwMtlEdit);	
//	return paramDlg;
	// create the rollout dialogs
	xyzGenDlg = xyzGen->CreateParamDlg(hwMtlEdit, imp);	
	IAutoMParamDlg* masterDlg = cellTexCD.CreateParamDlgs(hwMtlEdit, imp, this);
	texoutDlg = texout->CreateParamDlg(hwMtlEdit, imp);
	// add the secondary dialogs to the master
	masterDlg->AddDlg(xyzGenDlg);
	masterDlg->AddDlg(texoutDlg);
//	celTex_param_blk.SetUserDlgProc(new NoiseDlgProc(this));
	return masterDlg;

	}

Point3 Gradient::EvalNormalPerturb(ShadeContext& sc) 
	{
	Point3 dPdu, dPdv;
	if (!sc.doMaps) return Point3(0,0,0);
	if (gbufID) sc.SetGBufferID(gbufID);
	Point2 dM = uvGen->EvalDeriv(sc,&mysamp);
	uvGen->GetBumpDP(sc,dPdu,dPdv);

#if 0
	// Blinn's algorithm
	Point3 N = sc.Normal();
	Point3 uVec = CrossProd(N,dPdv);
	Point3 vVec = CrossProd(N,dPdu);
	Point3 np = -dM.x*uVec+dM.y*vVec;
#else 
	// Lazy algorithm
	Point3 np = dM.x*dPdu+dM.y*dPdv;
//	return texout->Filter(dM.x*dPdu+dM.y*dPdv);
#endif
	Texmap* sub[3];
	for (int i=0; i<3; i++) 
		sub[i] = mapOn[i]?subTex[i]:NULL;
	if (sub[0]||sub[1]||sub[2]) {
		// d((1-k)*a + k*b ) = dk*(b-a) + k*(db-da) + da
		float a,b,k;
		Point3 da,db;
		Point2 UV, dUV;
		uvGen->GetUV(sc, UV,dUV);
		k = gradFunc(UV.x,UV.y);
		if (k<=center) {	
			k = k/center; 		
			EVALSUBPERTURB(a,da,2);
			EVALSUBPERTURB(b,db,1);
			} 
		else {
			k = (k-center)/(1.0f-center);		
			EVALSUBPERTURB(a,da,1);
			EVALSUBPERTURB(b,db,0);
			}
		np = (b-a)*np + k*(db-da) + da;
		}
	return texout->Filter(np);
	}

void Gradient::Update(TimeValue t, Interval& valid) 
	{
	if (!ivalid.InInterval(t)) {
		ivalid.SetInfinite();
		uvGen->Update(t,ivalid);
		texout->Update(t,ivalid);
		pblock->GetValue( grad_color1, t, col[0], ivalid );
		col[0].ClampMinMax();
		pblock->GetValue( grad_color2, t, col[1], ivalid );
		col[1].ClampMinMax();
		pblock->GetValue( grad_color3, t, col[2], ivalid );
		col[2].ClampMinMax();		
		pblock->GetValue( grad_map1_on, t, mapOn[0], ivalid);
		pblock->GetValue( grad_map2_on, t, mapOn[1], ivalid);
		pblock->GetValue( grad_map3_on, t, mapOn[2], ivalid);
		pblock->GetValue( grad_type, t, type, ivalid );
		pblock->GetValue( grad_noise_type, t, noiseType, ivalid );
		pblock->GetValue( grad_amount, t, amount, ivalid );
		pblock->GetValue( grad_size, t, size, ivalid );
		pblock->GetValue( grad_phase, t, phase, ivalid );
		pblock->GetValue( grad_center, t, center, ivalid );
		pblock->GetValue( grad_levels, t, levels, ivalid );
		pblock->GetValue( grad_high_thresh, t, high, ivalid );
		pblock->GetValue( grad_low_thresh, t, low, ivalid );
		pblock->GetValue( grad_thresh_smooth, t, smooth, ivalid );		
		if (low>high) {
			float temp = low;
			low = high;
			high = temp;
			}
		hminusl = (high-low);
		sd = hminusl*0.5f*smooth;
		if (size!=0.0f) size1 = 20.0f/size;
		else size1 = 0.0f;
		for (int i=0; i<NSUBTEX; i++) {
			if (subTex[i]) 
				subTex[i]->Update(t,ivalid);
			}
		EnableStuff();
		}
	valid &= ivalid;
	}

void Output::Update(TimeValue t, Interval& valid) {		

	if (Param1)
		{
		pblock->SetValue( output_map1_on, 0, mapOn[0]);
		Param1 = FALSE;
		}

	if (!ivalid.InInterval(t)) {
		ivalid.SetInfinite();
		texout->Update(t,ivalid);
		pblock->GetValue( output_map1_on, t, mapOn[0], ivalid);

		for (int i=0; i<NSUBTEX; i++) {
			if (subTex[i]) 
				subTex[i]->Update(t,ivalid);
			}
		}
	valid &= ivalid;
	}

ParamDlg* Noise::CreateParamDlg(HWND hwMtlEdit, IMtlParams *imp) {
// JBW: the main difference here is the automatic creation of a ParamDlg by the new
// ClassDesc2 function CreateParamDlgs().  This mirrors the way BeginEditParams()
// can be redirected to the ClassDesc2 for automatic ParamMap2 management.  In this 
// case a special subclass of ParamDlg, AutoMParamDlg, defined in IParamm2.h, is 
// created.  It can act as a 'master' ParamDlg to which you can add any number of 
// secondary dialogs and it will make sure all the secondary dialogs are kept 
// up-to-date and deleted as necessary.  

	// create the rollout dialogs
	xyzGenDlg = xyzGen->CreateParamDlg(hwMtlEdit, imp);	
	IAutoMParamDlg* masterDlg = noiseCD.CreateParamDlgs(hwMtlEdit, imp, this);
	texoutDlg = texout->CreateParamDlg(hwMtlEdit, imp);
	// add the secondary dialogs to the master
	masterDlg->AddDlg(xyzGenDlg);
	masterDlg->AddDlg(texoutDlg);
	noise_param_blk.SetUserDlgProc(new NoiseDlgProc(this));
	EnableStuff();
	return masterDlg;

	}

Point3 Noise::EvalNormalPerturb(ShadeContext& sc) {
	Point3 p,dp;
	if (!sc.doMaps) return Point3(0,0,0);
	if (gbufID) sc.SetGBufferID(gbufID);
  	UpdateCache(sc.CurTime());  // DS 10/3/00
	xyzGen->GetXYZ(sc,p,dp);
	p /= size;
	filter = sc.filterMaps;
	float smw;
	float limlev = LimitLevel(dp,smw);
	float del,d;
	d = NoiseFunction(p,limlev,smw);
	//del = (dp.x+dp.y+dp.z)/(size*3.0f);
	del = .1f;
	Point3 np;					  
	Point3 M[3];
	xyzGen->GetBumpDP(sc,M);

	np.x = (NoiseFunction(p+del*M[0],limlev,smw) - d)/del;
	np.y = (NoiseFunction(p+del*M[1],limlev,smw) - d)/del;
	np.z = (NoiseFunction(p+del*M[2],limlev,smw) - d)/del;

	np = sc.VectorFromNoScale(np, REF_OBJECT);

	Texmap *sub0 = mapOn[0]?subTex[0]:NULL;
	Texmap *sub1 = mapOn[1]?subTex[1]:NULL;
	if (sub0||sub1) {
		// d((1-k)*a + k*b ) = dk*(b-a) + k*(db-da) + da
		float a,b;
		Point3 da,db;
		if (sub0) { 	a = sub0->EvalMono(sc); 	da = sub0->EvalNormalPerturb(sc);		}
		else {	 a = Intens(col[0]);	 da = Point3(0.0f,0.0f,0.0f);		 }
		if (sub1) { 	b = sub1->EvalMono(sc); 	db = sub1->EvalNormalPerturb(sc);	}
		else {	 b = Intens(col[1]);	 db= Point3(0.0f,0.0f,0.0f);		 }
		np = (b-a)*np + d*(db-da) + da;
		}
	else 
		np *= Intens(col[1])-Intens(col[0]);
	return texout->Filter(np);
	}