Raycast top-down Light

Hello!

I'm developing a game where there is a field of view like Monaco.
I did the raycasting and now I really can't find a way to make light to follow the raycast pattern. Any ideas?

The raycasting looks like this:


Thank you!

 

I'm having problem too with my 2d tile/ grid light.
Looking forward to this answer/ tips from others

Thank you

 

Check out these threads
http://forum.unity3d.com/threads/2d-dynamic-shadows.165283/

old test version with lots of raycasts,
see comments for newer links to similar: http://unitycoder.com/blog/2012/02/15/raycast-realtime-visibility-2-0/

and,
http://forum.unity3d.com/threads/2d-grid-based-fog-of-war.360790/

also there is some free assets in store,
https://www.assetstore.unity3d.com/en/#!/content/24083

 

I'm curious if this can be used to calculate fake shadows for a level. I'm trying to recreate something like the original doom or heretic's shadows.

I assume it only needs to calculate once per level load as long as the "lights" do not move positions.

EDIT: To clarify I'm looking for very hard edge aliased lights to go with very low res pixel art level textures. This is also for a mobile project, so I'm looking for a cheap substitute to shadows and light maps.