# Casting shadow/Light in 2d?

**URL:** https://forum.kirupa.com/t/casting-shadow-light-in-2d/314148
**Category:** flash
**Created:** [September 20, 2010, 9:13am UTC](https://forum.kirupa.com/t/casting-shadow-light-in-2d/314148 "2010-09-20T09:13:26Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Maqrkk](https://avatars.discourse-cdn.com/v4/letter/m/35a633/32.png) [@Maqrkk](https://forum.kirupa.com/u/Maqrkk)
#### Post date: [September 20, 2010, 9:13am UTC](https://forum.kirupa.com/t/casting-shadow-light-in-2d/314148/1 "2010-09-20T09:13:26Z")

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Hey everyone,

I want to make a game which uses a light effect similar to left4kdead ([link](http://www.mojang.com/notch/j4k/l4kd/)). I just can’t seem to be able to find how this effect is called. It will be strictly 2d top-down view.

Can anyone point me to a tutorial or book for this kind of thing?

Thanks 🙂