示例#1
0
        /// <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 TSVector position, ref TSMatrix orientation)
        {
            TSVector.Subtract(ref max, ref position, out max);
            TSVector.Subtract(ref min, ref position, out min);

            TSVector center;

            TSVector.Add(ref max, ref min, out center);
            center.x *= FP.Half; center.y *= FP.Half; center.z *= FP.Half;

            TSVector halfExtents;

            TSVector.Subtract(ref max, ref min, out halfExtents);
            halfExtents.x *= FP.Half; halfExtents.y *= FP.Half; halfExtents.z *= FP.Half;

            TSVector.TransposedTransform(ref center, ref orientation, out center);

            TSMatrix abs; TSMath.Absolute(ref orientation, out abs);

            TSVector.TransposedTransform(ref halfExtents, ref abs, out halfExtents);

            TSVector.Add(ref center, ref halfExtents, out max);
            TSVector.Subtract(ref center, ref halfExtents, out min);
        }
示例#2
0
        /// <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(TSVector position, TSMatrix orientation)
        {
            TSVector.Subtract(max, position, out max);
            TSVector.Subtract(min, position, out min);

            TSVector center;

            TSVector.Add(max, min, out center);
            center.x *= FP.Half; center.y *= FP.Half; center.z *= FP.Half;

            TSVector halfExtents;

            TSVector.Subtract(max, min, out halfExtents);
            halfExtents.x *= FP.Half; halfExtents.y *= FP.Half; halfExtents.z *= FP.Half;

            TSVector.TransposedTransform(center, orientation, out center);

            TSMatrix abs; TSMath.Absolute(orientation, out abs);

            TSVector.TransposedTransform(halfExtents, abs, out halfExtents);

            TSVector.Add(center, halfExtents, out max);
            TSVector.Subtract(center, halfExtents, out min);
        }