public static Vec4f operator *(Mat4 a, Vec4f b)
{
if (a == null)
{
return(null);
}
if (b == null)
{
return(null);
}
Vec4f newVec = new Vec4f();
newVec.Data[0] = (float)(a.mData[0][0] * b.Data[0] +
a.mData[0][1] * b.Data[1] +
a.mData[0][2] * b.Data[2] +
a.mData[0][3] * b.Data[3]);
newVec.Data[1] = (float)(a.mData[1][0] * b.Data[0] +
a.mData[1][1] * b.Data[1] +
a.mData[1][2] * b.Data[2] +
a.mData[1][3] * b.Data[3]);
newVec.Data[2] = (float)(a.mData[2][0] * b.Data[0] +
a.mData[2][1] * b.Data[1] +
a.mData[2][2] * b.Data[2] +
a.mData[2][3] * b.Data[3]);
newVec.Data[3] = (float)(a.mData[3][0] * b.Data[0] +
a.mData[3][1] * b.Data[1] +
a.mData[3][2] * b.Data[2] +
a.mData[3][3] * b.Data[3]);
return(newVec);
}
public void set(Vec4f vec)
{
if (vec == null)
{
throw new ArgumentNullException("Paramter vec can't be null!");
}
set(vec.X, vec.Y, vec.Z, vec.W);
}
public bool Equal(Vec4f b)
{
if (this == b)
{
return(true);
}
if ((this - b).isNull())
{
return(true);
}
return(false);
}
public float getDistance(Vec4f value)
{
return((this - value).Length);
}
public Vec4f(Vec4f data)
: this()
{
this.set(data);
}
