From 24a8b2acd76a6eace68e095f79efc93a45b83098 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 8 Jun 2009 11:12:34 +0000
Subject: [PATCH] From Lionel Lagarde, "this correction makes the intensity
 interpolated in the correct direction when the angle is between _cosFadeAngle
 and _cosAngle."

---
 src/osgSim/Sector.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/osgSim/Sector.cpp b/src/osgSim/Sector.cpp
index 580619158..0088dfc5b 100644
--- a/src/osgSim/Sector.cpp
+++ b/src/osgSim/Sector.cpp
@@ -323,7 +323,7 @@ float DirectionalSector::operator() (const osg::Vec3& eyeLocal) const
    if ( EPyz[0] < _cosVertAngle ) {
       // In the fade range
       //fprintf(stderr, "   >> inside el fade range\n") ;
-      elev_intensity = (_cosVertAngle-EPyz[0])/(_cosVertAngle-_cosVertFadeAngle) ;
+      elev_intensity = (EPyz[0]-_cosVertFadeAngle)/(_cosVertAngle-_cosVertFadeAngle) ;
    } else {
       // Fully in elevation range
       elev_intensity = 1.0 ;
@@ -349,7 +349,7 @@ float DirectionalSector::operator() (const osg::Vec3& eyeLocal) const
    if ( EPxy[1] < _cosHorizAngle ) {
       // In fade range
       //fprintf(stderr, "   >> inside az fade range\n") ;
-      azim_intensity = (_cosHorizAngle-EPxy[1])/(_cosHorizAngle-_cosHorizFadeAngle) ;
+      azim_intensity = (EPxy[1]-_cosHorizFadeAngle)/(_cosHorizAngle-_cosHorizFadeAngle) ;
    } else {
       // Fully in azimuth range
       //fprintf(stderr, "   >> fully inside az range\n") ;