public void Transform(ref JMatrix orientation) { JVector halfExtents = 0.5f * (Max - Min); JVector center = 0.5f * (Max + Min); JVector.Transform(ref center, ref orientation, out center); JMatrix abs; JMath.Absolute(ref orientation, out abs); JVector.Transform(ref halfExtents, ref abs, out halfExtents); Max = center + halfExtents; Min = center - halfExtents; }
/// <summary> /// Transforms the bounding box into the space given by orientation and position. /// </summary> /// <param name="position"></param> /// <param name="orientation"></param> /// <param name="result"></param> internal void InverseTransform(ref JVector position, ref JMatrix orientation) { JVector.Subtract(ref Max, ref position, out Max); JVector.Subtract(ref Min, ref position, out Min); JVector center; JVector.Add(ref Max, ref Min, out center); center.X *= 0.5f; center.Y *= 0.5f; center.Z *= 0.5f; JVector halfExtents; JVector.Subtract(ref Max, ref Min, out halfExtents); halfExtents.X *= 0.5f; halfExtents.Y *= 0.5f; halfExtents.Z *= 0.5f; JVector.TransposedTransform(ref center, ref orientation, out center); JMatrix abs; JMath.Absolute(ref orientation, out abs); JVector.TransposedTransform(ref halfExtents, ref abs, out halfExtents); JVector.Add(ref center, ref halfExtents, out Max); JVector.Subtract(ref center, ref halfExtents, out Min); }