void FillAVIIndexInfo::InitFrom( const std::string& filename )
{
std::ifstream f( filename.c_str(), std::ios::in|std::ios::binary );
assert( f );
Stream stream( &f );
InitFrom( stream );
}
void FBlendedCurve::Override(const FBlendedCurve& CurveToOverrideFrom)
{
InitFrom(CurveToOverrideFrom);
Elements = CurveToOverrideFrom.Elements;
ValidateCurve(this);
}
//@Todo curve flags won't transfer over - it only overwritees
void FBlendedCurve::Blend(const FBlendedCurve& A, const FBlendedCurve& B, float Alpha)
{
check(A.Num()==B.Num());
if(FMath::Abs(Alpha) <= ZERO_ANIMWEIGHT_THRESH)
{
// if blend is all the way for child1, then just copy its bone atoms
Override(A);
}
else if(FMath::Abs(Alpha - 1.0f) <= ZERO_ANIMWEIGHT_THRESH)
{
// if blend is all the way for child2, then just copy its bone atoms
Override(B);
}
else
{
InitFrom(A);
for(int32 CurveId=0; CurveId<A.Elements.Num(); ++CurveId)
{
Elements[CurveId].Value = FMath::Lerp(A.Elements[CurveId].Value, B.Elements[CurveId].Value, Alpha);
Elements[CurveId].Flags |= (A.Elements[CurveId].Flags | B.Elements[CurveId].Flags);
}
}
ValidateCurve(this);
}
void FBlendedCurve::Override(const FBlendedCurve& CurveToOverrideFrom, float Weight)
{
InitFrom(CurveToOverrideFrom);
if ( FMath::IsNearlyEqual(Weight, 1.f) )
{
Override(CurveToOverrideFrom);
}
else
{
for(int32 CurveId=0; CurveId<CurveToOverrideFrom.Elements.Num(); ++CurveId)
{
Elements[CurveId].Value = CurveToOverrideFrom.Elements[CurveId].Value * Weight;
Elements[CurveId].Flags |= CurveToOverrideFrom.Elements[CurveId].Flags;
}
}
ValidateCurve(this);
}
FBlendedCurve::FBlendedCurve(const class UAnimInstance* AnimInstance)
{
check(AnimInstance);
InitFrom(AnimInstance->CurrentSkeleton);
}
