Correct field of view calculation for Oculus Rift

diff --git a/source/oculusriftcombiner.cpp b/source/oculusriftcombiner.cpp
index 3ebbcc88914aea5d070bf265c5cd27556cf5274c..67b4729638adf27d9fd36fee7aa2614b91a73429 100644 (file)
--- a/source/oculusriftcombiner.cpp
+++ b/source/oculusriftcombiner.cpp
@@ -155,7 +155,7 @@ void OculusRiftCombiner::update_parameters()
        left_shdata.uniform("scale", 2.0f, 2.5f, oversize);
        right_shdata.uniform("scale", 2.0f, 2.5f, oversize);
 
-       fov = Geometry::atan(oversize*0.625f/view_distance)*2.0f;
+       fov = Geometry::atan(oversize*0.625f/view_distance/2)*2.0f;
        frustum_skew = lens_separation*2-1;
 }