How to send out all possible rays from the viewportpoint to the scene?

Unity Engine
1

Hi,

How to send out all possible rays from the viewport to the scene?

Thanks in advance

2

Can i ask why you wold like to do that?
You should use raycast only if you really need them.
For your case for HD resolution(1920X1080) you would have 2073600 raycast if you do it for every pixel.
That would be extreme expensive.

If you realy need to you can just nest two for loops and run the raycast for every pixel cordinate.