Guys, i am using a single 2D scene capture with a 170 degrees FOV(i know it should be 180, but this is the maximum i can achieve with only one capture), and i rotate the capture to always follow the camera view. Thats all fine, the problem is with the post proccess material, where i distort the image to get that Fisheye Lens effect!
The distortion has to look similar to the sphere on the right!