Half Life 2 for the DK2

Half Life 2 for Oculus DK2

So you've got the DK2 and are itching to play Half Life 2? Well... put down your beer. You've got about 15-30 minutes of work to get it all ready to go.

These steps are a succinct visual walk through of instructions and comments found here:

http://www.roadtovr.com/how-to-enable-oculus-rift-dk2-half-life-2-steamvr-steam-big-picture-virtual-reality-mode/

Download Oculus SDK 0.4.4 Beta (as of 12/8/2014)

I was originally using an older version of the beta and Half Life 2 wouldn't recognize the DK2.

Turn on the DK2

Update your DK2 firmware

Put Rift in extended mode

Half Life 2 does not work in direct HMD mode.

Set the monitor resolution so that the frequency is 75hz

If you don't do this, you will get judder in the game. It makes it unplayable. Finding the right resolution that supports 75Hertz may take a while. I had to go all the way down to 1024x768 before I found a resolution that worked.

Enable Half Life 2 beta

Right click on the Half Life 2 game in steam and it will open this dialog. Go to the betas tab and enable beta updates. Half Life 2 will download new stuff when you close this.

Add launch parameters

Half Life 2 must run at 75 Hertz so there is no judder. You need to pass a few launch options.

Enable Virtual Reality 

Within Half Life 2, go to options and enable virtual reality mode. You will also need to run in a window.

Disable Motion Blur

Turn off the motion blur. It can be found in video - advanced.

Enable Developer Console

Turn on the developer console in the keyboard tab.

Set refresh frequency

Open the developer console by pressing the ~ (tilda) key when you are at the menu.

Enter this:

fps_max 76

Enlarge Camera Tracking Bounds

The tracking camera's default boundary is very tiny. Lets fix that.
With the developer console open, enter this:

vr_translation_limit 100

Start Virtual Reality Mode (May require restart of Half Life 2 to see it)

You should be good to go. Start up Half Life 2 and enjoy. If you don't see it you probably don't have the DK2 on, its firmware is old or you don't have the latest Oculus Run time.

Side Note:
developer console settings must be re-entered every time you launch the game:
fps_max 76
 vr_translation_limit 100