A few days ago, we released our review of Portal 2 on the DDD, iZ3D, and Nvidia GeForce 3D Vision drivers. In the review, we noted that we could only get Portal 2 to run on the 1.12 iZ3D drivers and not on their 1.13 release candidate. As shown above, the problem was that Portal 2 looked like a scrambled mess.
We discovered that the default profile for Portal 2 in iZ3D's 1.13RC drivers sets the separation to maximum - well beyond the scope of something that would be visible on the screen. When we discovered this and reduced the separation, the game looked presentable again...sort of.
On closer inspection, there are bugs and anomalies unique to version 1.13RC that are not present in version 1.12. In particular, the wall displays suffer from having layers of their graphics slide off the screen as the image gets adjusted in 3D. This should be easy for iZ3D to fix, so we recommend you use the 1.12 driver version with the updated baseprofile.xml file until then. The baseprofile can be found in the comments section of the review.
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