From 4656e3adcaac785d1c36bbc1a94cd857fdabc97d Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Fri, 19 Apr 2002 00:25:25 +0000
Subject: [PATCH] Jim Wilson: Minor patch for flicker glitch when crossing from
 one tile to another.

---
 src/Main/location.cxx | 13 ++++---------
 src/Main/main.cxx     | 10 +++++-----
 2 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/src/Main/location.cxx b/src/Main/location.cxx
index 290ec5280..f8c776b2d 100644
--- a/src/Main/location.cxx
+++ b/src/Main/location.cxx
@@ -244,7 +244,7 @@ FGLocation::recalcPosition (double lon_deg, double lat_deg, double alt_ft) const
   Point3D p = Point3D(lon_deg * SG_DEGREES_TO_RADIANS,
 		      lat_geoc_rad,
 		      sea_level_radius_m);
-  Point3D tmp = sgPolarToCart3d(p) - scenery.get_center();
+  Point3D tmp = sgPolarToCart3d(p) - scenery.get_next_center();
   sgSetVec3(_zero_elev_view_pos, tmp[0], tmp[1], tmp[2]);
 
 				// Calculate the absolute view position
@@ -259,9 +259,9 @@ FGLocation::recalcPosition (double lon_deg, double lat_deg, double alt_ft) const
                                 // aka Relative View Position
   sgdVec3 scenery_center;
   sgdSetVec3(scenery_center,
-	     scenery.get_center().x(),
-	     scenery.get_center().y(),
-	     scenery.get_center().z());
+	     scenery.get_next_center().x(),
+	     scenery.get_next_center().y(),
+	     scenery.get_next_center().z());
   sgdVec3 view_pos;
   sgdSubVec3(view_pos, _absolute_view_pos, scenery_center);
   sgSetVec3(_relative_view_pos, view_pos);
@@ -272,8 +272,3 @@ void
 FGLocation::update (int dt)
 {
 }
-
-
-
-
-
diff --git a/src/Main/main.cxx b/src/Main/main.cxx
index 2dcc30f77..94909df9c 100644
--- a/src/Main/main.cxx
+++ b/src/Main/main.cxx
@@ -1076,11 +1076,6 @@ static void fgMainLoop( void ) {
     fgIOProcess();
 #endif
 
-    // see if we need to load any new scenery tiles
-    double visibility_meters = fgGetDouble("/environment/visibility-m");
-    global_tile_mgr.update( longitude->getDoubleValue(),
-			    latitude->getDoubleValue(), visibility_meters );
-
     // see if we need to load any deferred-load textures
     material_lib.load_next_deferred();
 
@@ -1096,6 +1091,11 @@ static void fgMainLoop( void ) {
     // redraw display
     fgRenderFrame();
 
+    // see if we need to load any new scenery tiles
+    double visibility_meters = fgGetDouble("/environment/visibility-m");
+    global_tile_mgr.update( longitude->getDoubleValue(),
+			    latitude->getDoubleValue(), visibility_meters );
+
     SG_LOG( SG_ALL, SG_DEBUG, "" );
 }
 
-- 
2.39.5