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66331b6863
Compute the value of the camera distance as exactly half the xx component of the projection matrix. The heuristically derived value for 60 degrees was off by about 0.016%, causing noticeable blurring, and other field of view angles which didn't have the heuristic adjustment off by much more. Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>