--- a/IndoorCameraD3D.cpp	Tue Sep 17 17:40:59 2013 +0200
+++ b/IndoorCameraD3D.cpp	Tue Sep 17 18:39:32 2013 +0200
@@ -12,6 +12,14 @@
 #include "stru9.h"
 
 
+// calculates FOV (Field of View) angle in radians for IndoorCamera::Initialize and BLVRenderParams::Reset
+float _calc_fov(int viewport_width, int angle_degree)
+{
+  return viewport_width * 0.5 / tan(angle_degree / 2 * 0.01745329) + 0.5;
+}
+
+
+
 //----- (004361EF) --------------------------------------------------------
 IndoorCameraD3D::IndoorCameraD3D()
 {
@@ -1535,17 +1543,17 @@
     //v8 = a2b + 6.7553994e15;
     *a6 = pViewport->uViewportBR_Y - floorf(a2b + 0.5f);
   }
-  else
+  /*else
   {
-    LODWORD(v9) = pBLVRenderParams->field_40 << 16;
-    HIDWORD(v9) = pBLVRenderParams->field_40 >> 16;
+    LODWORD(v9) = pBLVRenderParams->fov_rad_fixpoint << 16;
+    HIDWORD(v9) = pBLVRenderParams->fov_rad_fixpoint >> 16;
     v10 = v9 / x;
-    LODWORD(v9) = pBLVRenderParams->field_40 << 16;
-    HIDWORD(v9) = pBLVRenderParams->field_40 >> 16;
+    LODWORD(v9) = pBLVRenderParams->fov_rad_fixpoint << 16;
+    HIDWORD(v9) = pBLVRenderParams->fov_rad_fixpoint >> 16;
     *a5 = pBLVRenderParams->uViewportCenterX
         - ((signed int)(((unsigned __int64)(v10 * (signed __int64)y) >> 16) + 32768) >> 16);
     *a6 = pBLVRenderParams->uViewportCenterY - ((signed int)(((unsigned __int64)(v9 / x * z) >> 16) + 32768) >> 16);
-  }
+  }*/
 }
 
 //----- (00436A6D) --------------------------------------------------------