public void set_look_at(Vector3 eye, Vector3 target, Vector3 up)
{
// Make rotation matrix
// Z vector
Vector3 zAxis = eye - target;
zAxis.normalize();
Vector3 yAxis = up;
Vector3 xAxis = yAxis.cross(zAxis);
// Recompute Y = Z cross X
yAxis = zAxis.cross(xAxis);
xAxis.normalize();
yAxis.normalize();
basis = Basis.create_from_axes(xAxis, yAxis, zAxis);
origin = eye;
}
public Transform(Vector3 xAxis, Vector3 yAxis, Vector3 zAxis, Vector3 origin)
{
this.basis = Basis.create_from_axes(xAxis, yAxis, zAxis);
this.origin = origin;
}