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;
}
public static JMatrix CreateRotationY(float radians)
{
float num2 = JMath.Cos(radians);
float num = JMath.Sin(radians);
return(new JMatrix(
m11: num2,
m12: 0f,
m13: -num,
m21: 0f,
m22: 1f,
m23: 0f,
m31: num,
m32: 0f,
m33: num2));
}
public static void CreateRotationX(float radians, out JMatrix result)
{
float num2 = JMath.Cos(radians);
float num = JMath.Sin(radians);
result = new JMatrix(
m11: 1f,
m12: 0f,
m13: 0f,
m21: 0f,
m22: num2,
m23: num,
m31: 0f,
m32: -num,
m33: num2);
}
/// <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);
}
