How iRacing Works in 3D

Start the YouTube video player. Click on the red 3D icon that will appear in the menu bar to select 2D or your choice of stereo 3D formats.

It’s useful and fun to look over the traffic stats and see just what brings people to Cars In Depth, what serendipitous combination of search terms lands CID on Google’s first page. One thing that I’ve noticed is that we get a few people a day looking for information on iRacing and 3D, whether or not iRacing works with 3D and how it works. As a service to our readers I’ve asked iRacing CEO Tony Gardner about how 3D is implemented on the site and this is his response:

iRacing is compatible with several 3D drivers, the most commonly used include nVidia 3D Vision and iZ3D. These drivers intercept the rendering calls made by iRacing into Direct3D and force each frame that is normally rendered from a single camera to instead be rendered twice from two cameras spaced about the same distance apart as the human eyes are spaced apart from each other. These 3D drivers, in conjuction with specialized 3D hardware [on the users’ PCs, like video cards, glasses & autostereo displays], deliver an immersive 3D experience on your PC. Although iRacing doesn’t do anything in particular to enable this stereoscopic rendering (the simulation is quite unaware of it) we do our best to maintain compatibility with these drivers.

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