From 9018b253dfb1f06c959dccd6d659ca4e29b7efc4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Mal=C3=BD?= <tomas.maly@melown.com>
Date: Tue, 29 Jan 2019 10:25:15 +0100
Subject: [PATCH] fix that coarseness test with disks ignored fov

---
 browser/src/vts-libbrowser/camera/camera.cpp | 4 +++-
 browser/src/vts-libbrowser/camera/camera.hpp | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/browser/src/vts-libbrowser/camera/camera.cpp b/browser/src/vts-libbrowser/camera/camera.cpp
index a9cea36c..d29fb734 100644
--- a/browser/src/vts-libbrowser/camera/camera.cpp
+++ b/browser/src/vts-libbrowser/camera/camera.cpp
@@ -44,6 +44,7 @@ OldDraw::OldDraw(const TileId &id) : trav(id), orig(id), age(0)
 
 CameraImpl::CameraImpl(MapImpl *map, Camera *cam) :
     map(map), camera(cam),
+    diskNominalDistance(0),
     windowWidth(0), windowHeight(0)
 {}
 
@@ -182,7 +183,7 @@ double CameraImpl::coarsenessValue(TraverseNode *trav)
         double dist = distanceToDisk(trav->diskNormalPhys,
             trav->diskHeightsPhys, trav->diskHalfAngle,
             cameraPosPhys);
-        double v = texelSize * windowHeight / dist;
+        double v = texelSize * diskNominalDistance / dist;
         assert(v == v && v > 0);
         return v;
     }
@@ -571,6 +572,7 @@ void CameraImpl::renderUpdate()
         vts::frustumPlanes(viewProjCulling, cullingPlanes);
         cameraPosPhys = eye;
         focusPosPhys = target;
+        diskNominalDistance =  windowHeight * apiProj(1, 1) * 0.5;
     }
     else
     {
diff --git a/browser/src/vts-libbrowser/camera/camera.hpp b/browser/src/vts-libbrowser/camera/camera.hpp
index 90bcf367..86175ccd 100644
--- a/browser/src/vts-libbrowser/camera/camera.hpp
+++ b/browser/src/vts-libbrowser/camera/camera.hpp
@@ -122,6 +122,7 @@ class CameraImpl
     vec3 cameraPosPhys;
     vec3 focusPosPhys;
     vec3 eye, target, up;
+    double diskNominalDistance;
     uint32 windowWidth;
     uint32 windowHeight;