|
public static GetPointContribution ( float pointWeight, Microsoft.Xna.Framework.Vector3 ¢er, Microsoft.Xna.Framework.Vector3 p, |
||
| pointWeight | float | Weight of the point. |
| center | Microsoft.Xna.Framework.Vector3 | Location to use as the center for the purposes of computing the contribution. |
| p | Microsoft.Xna.Framework.Vector3 | Point to compute the contribution of. |
| contribution | Contribution of the point. | |
| Результат | void | |
public static void GetPointContribution(float pointWeight, ref Vector3 center, Vector3 p, out Matrix3x3 contribution)
{
Vector3.Subtract(ref p, ref center, out p);
float xx = pointWeight * p.X * p.X;
float yy = pointWeight * p.Y * p.Y;
float zz = pointWeight * p.Z * p.Z;
contribution.M11 = yy + zz;
contribution.M22 = xx + zz;
contribution.M33 = xx + yy;
contribution.M12 = -pointWeight * p.X * p.Y;
contribution.M13 = -pointWeight * p.X * p.Z;
contribution.M23 = -pointWeight * p.Y * p.Z;
contribution.M21 = contribution.M12;
contribution.M31 = contribution.M13;
contribution.M32 = contribution.M23;
}
}