Using Rotate Around Various Axis

I asked this question lately , i am trying to ask it differently .
i have a Cylinder and on the top Surface in the center i have an empty gameobject and at the Boarder of the top surface of the cylinder i have a Red Sphere i need to make it Rotate around the empty gameobject ..
if the Cylinder was stand at 90 Degrees it was Solved for me , cause i was used :
transform.RotateAround(parent.transform.position,
new Vector3(0,1,0),
40 * Time.deltaTime);
but the problem is the the Cylinder is not standing at 90 Degrees .

 

hi @Livindaki, have you tried using the transform.up vector? I mean rotate about cylinder.transform.up axis and emptyObject/parent?.trasform.position. Also keep in mind that doing new in the call is very slow because it has to dynamically allocate memory each time.

 

but using Vector3.up do a good result if the Cyliner is 90 Degrees
otherwise its look like that :

 

Here is an example:

 

but do not use slow operations like something.transform.something. Cache the transforms when you can, e.g. change code to:

Code (CSharp):

1.     static Transform cylTrans;
2.     static Transform cubeTrans;
3.     static Transform sphereTrans;
4. ...
5.         cylTrans = cyl.transform;
6.         sphereTrans = sphere.transform;
7.         cubeTrans = cube.transform;
8. ...
9.             sphereTrans.RotateAround(cubeTrans.position,
10.                 cylTrans.up,
11.                 40);
12.  

 

Wooow ... Thanks for you Very very much cosmochristo

 

you're welcome