WString l2w(const String& lstr) {
return l2w(lstr.c_str(), lstr.size());
#if 0
size_t len = lstr.size();
WString result;
result.resize(len);
size_t count = mbstowcs(&result[0], &lstr[0], len);
AX_ASSERT(count <= len);
result.resize(count);
return result;
#endif
}
WString l2w(const char* localstr) {
return l2w(localstr, strlen(localstr));
#if 0
size_t len = strlen(localstr);
WString result;
result.resize(len);
size_t count = mbstowcs(&result[0], localstr, len);
AX_ASSERT(count <= len);
result.resize(count);
return result;
#endif
}
// Generate local to world from face info (pos, normal, etc)
Matrix3 plDistributor::IGenerateTransform(int iRepNode, int iFace, const Point3& pt, const Point3& bary) const
{
const float kMinVecLengthSq = 1.e-6f;
Matrix3 l2w(true);
// First, set the scale
Point3 scale;
switch( fScaleLock )
{
case kLockX | kLockY:
scale.x = fRand.RandRangeF(fScaleLo.x, fScaleHi.x);
scale.y = scale.x;
scale.z = fRand.RandRangeF(fScaleLo.z, fScaleHi.z);
break;
case kLockX | kLockY | kLockZ:
scale.x = fRand.RandRangeF(fScaleLo.x, fScaleHi.x);
scale.y = scale.z = scale.x;
break;
default:
scale.x = fRand.RandRangeF(fScaleLo.x, fScaleHi.x);
scale.y = fRand.RandRangeF(fScaleLo.y, fScaleHi.y);
scale.z = fRand.RandRangeF(fScaleLo.z, fScaleHi.z);
break;
}
l2w.Scale(scale);
// Next up, get the rotation.
// First we'll randomly rotate about local Z
float azimRot = fRand.RandMinusOneToOne() * fAzimuthRange;
Matrix3 azimMat;
azimMat.SetRotateZ(azimRot);
l2w = l2w * azimMat;
// Now align with the surface.
// Get the interpolated surface normal.
Point3 surfNorm = IGetSurfaceNormal(iFace, bary);
Matrix3 repNodeTM = fRepNodes[iRepNode]->GetNodeTM(TimeValue(0));
Point3 alignVec = repNodeTM.GetRow(2);
alignVec = alignVec * fWorldToSurfVec;
alignVec = FNormalize(alignVec);
Point3 norm = surfNorm + (alignVec - surfNorm) * fAlignWgt;
// The norm can come out of this zero length, if the surace normal
// is directly opposite the "natural" up direction and the weight
// is 50% (for example). In that case, this is just a bad place
// to drop this replicant.
if( norm.LengthSquared() < kMinVecLengthSq )
{
l2w.IdentityMatrix();
return l2w;
}
norm = norm.Normalize();
// Randomize through the cone around that.
Point3 rndNorm = norm;
Point3 rndDir = IPerpAxis(norm);
Point3 rndOut = rndDir ^ norm;
rndDir *= fRand.RandMinusOneToOne();
float len = sqrt(1.f - rndDir.LengthSquared());
rndOut *= len;
if( fRand.RandMinusOneToOne() < 0 )
rndOut *= -1.f;
Point3 rndPol = rndDir + rndOut;
float polScale = fRand.RandZeroToOne() * fTanPolarRange;
// Combine using the bunching factor
polScale = polScale * (1.f - fPolarBunch) + polScale * polScale * fPolarBunch;
rndPol *= polScale;
rndNorm += rndPol;
norm = rndNorm.Normalize();
// Have "up" alignment, now just generate random dir vector perpindicular to up
Point3 dir = repNodeTM.GetRow(1);
dir = dir * fWorldToSurfVec;
Point3 out = dir ^ norm;
if( out.LengthSquared() < kMinVecLengthSq )
{
if( fAzimuthRange < M_PI * 0.5f )
{
l2w.IdentityMatrix();
return l2w;
}
else
{
dir = IPerpAxis(norm);
out = dir ^ norm;
}
}
out = FNormalize(out);
dir = norm ^ out;
// If our "up" direction points into the surface, return an "up" direction
// tangent to the surface. Also, make the "dir" direction point out from
// the surface. So if the alignVec/fAlignWgt turns the replicant around
// to penetrate the surface, it just lies down instead.
//
// There's an early out here, for the case where the surface normal is
// exactly opposed to the destination normal. This usually means the
// surface normal is directly opposite the alignVec. In that
// case, we just want to bag it.
if( DotProd(norm, surfNorm) < 0 )
{
dir = surfNorm;
dir = dir.Normalize();
out = dir ^ norm;
if( out.LengthSquared() < kMinVecLengthSq )
{
l2w.IdentityMatrix();
return l2w;
}
out = out.Normalize();
norm = out ^ dir;
}
Matrix3 align;
align.Set(out, dir, norm, Point3(0,0,0));
l2w = l2w * align;
// Lastly, set the position.
Point3 pos = pt;
const float offset = fRand.RandRangeF(fOffsetMin, fOffsetMax);
pos += norm * offset;
l2w.Translate(pos);
l2w = l2w * fSurfNode->GetObjectTM(TimeValue(0));
return l2w;
}
hsMatrix44 plSpanInstance::getLocalToWorld() const {
hsMatrix44 l2w;
l2w(0, 0) = fL2W[0][0];
l2w(0, 1) = fL2W[0][1];
l2w(0, 2) = fL2W[0][2];
l2w(0, 3) = fL2W[0][3];
l2w(1, 0) = fL2W[1][0];
l2w(1, 1) = fL2W[1][1];
l2w(1, 2) = fL2W[1][2];
l2w(1, 3) = fL2W[1][3];
l2w(2, 0) = fL2W[2][0];
l2w(2, 1) = fL2W[2][1];
l2w(2, 2) = fL2W[2][2];
l2w(2, 3) = fL2W[2][3];
return l2w;
}
String l2u(const String& lstr) {
return w2u(l2w(lstr));
}
String l2u(const char* localstr) {
WString ws = l2w(localstr);
return w2u(ws);
}
