public void UpdateTransform()
{
if (parent != null)
{
globalTransform = parent.globalTransform * localTransform;
}
else
{
globalTransform = localTransform;
}
foreach (SceneObject child in children)
{
child.UpdateTransform();
}
}
public void SetToTransformedBox(AABB box, Calculations.Matrix3 m)
{
// If we're empty, then exit (an empty box defined as having the min/max
// set to infinity)
if (box.IsEmpty())
{
Empty();
return;
}
// Examine each of the nine matrix elements
// and compute the new AABB
Vector3 min = new Vector3();
Vector3 max = new Vector3();
if (m.x1 > 0.0f) // x1 = x11 in the formula above
{
min.x += m.x1 * box.min.x; max.x += m.x1 * box.max.x;
}
else
{
min.x += m.x1 * box.max.x; max.x += m.x1 * box.min.x;
}
if (m.x2 > 0.0f) // y1 = x12 in the formula above
{
min.y += m.x2 * box.min.x; max.y += m.x2 * box.max.x;
}
else
{
min.y += m.x2 * box.max.x; max.y += m.x2 * box.min.x;
}
if (m.x3 > 0.0f) // z1 = x13 in the formula above
{
min.z += m.x3 * box.min.x; max.z += m.x3 * box.max.x;
}
else
{
min.z += m.x3 * box.max.x; max.z += m.x3 * box.min.x;
}
//---------------------------------------------------------------------------
if (m.y1 > 0.0f) // x2 = y11 in the formula above
{
min.x += m.y1 * box.min.y; max.x += m.y1 * box.max.y;
}
else
{
min.x += m.y1 * box.max.y; max.x += m.y1 * box.min.y;
}
if (m.y2 > 0.0f) // y2 = y12 in the formula above
{
min.y += m.y2 * box.min.y; max.y += m.y2 * box.max.y;
}
else
{
min.y += m.y2 * box.max.y; max.y += m.y2 * box.min.y;
}
if (m.y3 > 0.0f) // z2 = y13 in the formula above
{
min.z += m.y3 * box.min.y; max.z += m.y3 * box.max.y;
}
else
{
min.z += m.y3 * box.max.y; max.z += m.y3 * box.min.y;
}
//---------------------------------------------------------------------------
if (m.z1 > 0.0f) // x3 = z11 in the formula above
{
min.x += m.z1 * box.min.z; max.x += m.z1 * box.max.z;
}
else
{
min.x += m.z1 * box.max.z; max.x += m.z1 * box.min.z;
}
if (m.z2 > 0.0f) // y2 = z12 in the formula above
{
min.y += m.z2 * box.min.z; max.y += m.z2 * box.max.z;
}
else
{
min.y += m.z2 * box.max.z; max.y += m.z2 * box.min.z;
}
if (m.z3 > 0.0f) // z1 = z13 in the formula above
{
min.z += m.z3 * box.min.z; max.z += m.z3 * box.max.z;
}
else
{
min.z += m.z3 * box.max.z; max.z += m.z3 * box.min.z;
}
box.min = min;
box.max = max;
// Continue like this for the remaining 6 matrix values
}
/// <summary>
/// Sets a Matrix3 to the variables of another Matrix3
/// </summary>
/// <param name="m"></param>
public Matrix3(Matrix3 m)
{
x1 = m.x1; x2 = m.x2; x3 = m.x3;
y1 = m.y1; y2 = m.y2; y3 = m.y3;
z1 = m.z1; z2 = m.z2; z3 = m.z3;
}
