Graphics corruption showing on games based on Valve's Source Engine*

Graphics corruption may show in different instances when running some games based on Valve's Source Engine* like:

• Day of Infamy
• New World Interactive
• Left for Dead 2
• CS:GO

Examples of the graphics corruption that can be seen:

https://steamuserimages-a.akamaihd.net/ugc/362903257282541071/2172F1ADD160C6582002A82F3AE191F75A5745ED/*

https://steamuserimages-a.akamaihd.net/ugc/362903257282541675/4A86B8763278A32F3D54249E83385562B57F673E/*

http://i.imgur.com/KQKpaAJ.jpg*

http://i.imgur.com/RcfQhPG.jpg*

• There is a known issue with some games based on Source Engine*.
  • Intel is working with Valve to resolve so future drivers could see improvements.

• The current workaround suggested by some users is to add the following to the game file named 'video.txt':
  • "setting.mat_tonemapping_occlusion_use_stencil" "1"

There has been an issue with Valve games where they were using a check on the graphics hardware device ID to make decisions about how to render.

7th Generation Intel® Core™ processors device IDs were throwing off this check and caused failures in multiple games.