Hello ,

I have Unity3D 4.5 Free installed on my PC and I want to know how to create a LOS (Line Of Sight) in a Top-Down Shooter game.

I have written the algorithm based on this page(mostly). (Casting rays and creating a triangle fan)

This page was also helpful : Line Of Sight In a Tile Based World

Similar Games : Monaco , Gish

-The thing i want to know is what is the best way to implement it in Unity3D.

FOW , Projectors are the only ways that i tried and didn't work(maybe i didn't know how to work with them).

Thank You

Testing line of sight, first google result for code sample of the process.

If you are looking for a lighting style rather than object tests, turn off all ambient lights, make tall objects, and drop in a light.

If you are looking for a lighting style rather than object tests....

I'm looking for both.

Turn off all ambient lights, make tall objects, and drop in a light.

I think have tested that and it wasn't the effect that i was looking for.

- I'm more confused about how to make such an effect (Like the picture attached to the first post) in Unity3D, I'd appreciate it if you helped me to do so,

Take a look at the asset store. Here's a free project with dynamic lighting and shadows:

https://www.assetstore.unity3d.com/en/#!/content/24083

- Eck

Hey Guys,

Thanks to Eck for the asset, i found it pretty convincing and spent a lot of time analyzing it.

BUT It works with meshes.

The Question Is: How can i some how convert it to light ?

As you can see in the picture attached i set ambient light near to black but i want i to be completely dark outside of light of sight and i don't think that i can do it using meshes .

- The next picture is when ambient light is black and the mesh works well. (But i can't see part of the plane that is around the character or in other word when its near the light)

(There is no light in both pictures)

-Should I use another way like FOW ?

-Is there a Way to do it using meshes?

Thanks.

Hey ,

As you can see in the picture i did this LOS Lighting using meshes. Thanks To : forb, Eck , DaveSF

I just did as the same as the asset Eck gave me did And i created an object and added a mesh to it that is black and this mesh includes vertices that are the 2 edges(The edges that the endpoint of the raycasts are themselves) of the object and their raycast's end in the screen (As you can see in the picture) and i lowered the mesh's height so that the obstacle itself can be seen - I guess that's all.

THANK YOU ALL.

Awesome. Do you see obstacles behind your obstacles?

* | |

If the * is the smiley and |'s are walls, can you see the 2nd wall or is it obscured in shadow?

- Eck

Yes it can.

I will attach the source as soon as it's ready