void CompositeMat::PostShade(ShadeContext& sc, IReshadeFragment* pFrag, int& nextTexIndex, IllumParams* )
{
int i(0), type(2);
Mtl* submtl = NULL;
BOOL enabled(TRUE);
ShadeOutput out1, out2;
float amount(100.0f); // , gamount(0.0f);
char texLengths[12];
int* pI = (int*)&texLengths[0];
pI[0] = pFrag->GetIntChannel(nextTexIndex++);
pI[1] = pFrag->GetIntChannel(nextTexIndex++);
pI[2] = pFrag->GetIntChannel(nextTexIndex++);
// postshade any submaterials
for ( i=0; i<MAX_NUM_MTLS; i++)
{
if( i>0 )
pblock2->GetValue(compmat_map_on, sc.CurTime(), enabled, FOREVER, i-1);
else
enabled = TRUE;
pblock2->GetValue(compmat_mtls, sc.CurTime(), submtl, FOREVER, i);
if ( enabled && submtl ){
if( i > 0 ){
pblock2->GetValue(compmat_amount, sc.CurTime(), amount, FOREVER, i-1);
pblock2->GetValue(compmat_type, sc.CurTime(), type, FOREVER, i-1);
}
amount = amount * 0.01f;
sc.ResetOutput();
IReshading* pReshading = (IReshading*)(submtl->GetInterface(IID_IReshading));
if( pReshading )
pReshading->PostShade(sc, pFrag, nextTexIndex);
// first check for base material
if( i > 0 ) {
// not base material, composite the next material
out2 = sc.out;
if (type == 0) // additive
{
out2.t.r += 1.0f-amount;
out2.t.g += 1.0f-amount;
out2.t.b += 1.0f-amount;
out2.c *= amount;
out2.t.ClampMinMax();
out2.ior *= amount;
float f1 = 1.0f - (out1.t.r + out1.t.g + out1.t.b) / 3.0f;
float f2 = 1.0f - (out2.t.r + out2.t.g + out2.t.b) / 3.0f;
out1.c = out1.c * (1.0f-f2) + out2.c * f1;
out1.t = out1.t - (1.0f-out2.t);
out1.ior = out1.ior + out2.ior;
out1.t.ClampMinMax();
}
else if (type == 1) // subtractive
{
out2.t.r += 1.0f-amount;
out2.t.g += 1.0f-amount;
out2.t.b += 1.0f-amount;
out2.c *= amount;
out2.t.ClampMinMax();
out2.ior *= amount;
float f1 = 1.0f - (out1.t.r + out1.t.g + out1.t.b) / 3.0f;
float f2 = 1.0f - (out2.t.r + out2.t.g + out2.t.b) / 3.0f;
out1.c = out1.c * (1.0f-f2) - out2.c * f1;
out1.t = out1.t - (1.0f-out2.t);
out1.ior = out1.ior + out2.ior;
out1.t.ClampMinMax();
}
else //mix
{
out1.MixIn(out2, 1.0f-amount);
}
}// end, not base mtl
else {
// base material.
out1 = sc.out;
out1.ior *= amount;
}
}// end, if has submtl & enabled
else {
nextTexIndex += texLengths[i];
}
}// end, for each mtl
sc.out = out1;
}
void M3Mat::PostShade(ShadeContext& sc, IReshadeFragment* pFrag, int& nextTexIndex, IllumParams* ip)
{
int i;
IReshading* pReshading;
TimeValue t = sc.CurTime();
Interval valid = FOREVER;
pblockMat->GetValue(100,t,i,FOREVER);
Mtl *sm1 = mTex[100];
float total(0.0f);
ShadeOutput sDatabase[100];
float u[100];
ShadeOutput sFinal;
// handle no base mat
if(!sm1)
{
sc.ResetOutput();
sc.out.c = black;
sc.out.t = black;
return;
}
if(i==0 || (i==1 && inRender) )
{
for( i=0; i<100; i++)
{
pblockMat->GetValue(i,t,u[i],valid);
u[i] /= 100.0f;
if( mTex[i]!=NULL && u[i]!=0 && mapOn[i] )
{
Mtl *comb = mTex[i];
pReshading = (IReshading*)(comb->GetInterface(IID_IReshading));
if( pReshading )
pReshading->PostShade(sc, pFrag, nextTexIndex, ip );
sDatabase[i] = sc.out;
sc.ResetOutput();
total += u[i];
}
}
sc.ResetOutput();
pReshading = (IReshading*)(sm1->GetInterface(IID_IReshading));
if( pReshading )
pReshading->PostShade(sc, pFrag, nextTexIndex, ip );
sFinal.c = black;
sFinal.t = black;
sFinal.ior = 0.0f;
for( i=0;i<100;i++)
{
if(mTex[i]!=NULL && u[i]!=0 && mapOn[i])
{
sc.out.flags |= sDatabase[i].flags;
if(total>1.0f){
sFinal.c += u[i]/total * sDatabase[i].c;
sFinal.t += u[i]/total * sDatabase[i].t;
sFinal.ior += u[i]/total * sDatabase[i].ior;
}
else{
sFinal.c += u[i] * sDatabase[i].c;
sFinal.t += u[i] * sDatabase[i].t;
sFinal.ior += u[i] * sDatabase[i].ior;
}
}
}
if(total) {
sc.out.MixIn(sFinal, 1.0f-total);
}
}
else {
pReshading = (IReshading*)(sm1->GetInterface(IID_IReshading));
if( pReshading )
pReshading->PostShade(sc, pFrag, nextTexIndex, ip );
}
}
