atmosphere: stable front haze using terrain distance texture

config.js

@@ -334,13 +334,21 @@ window.CONFIG = {
             color: [0.58, 0.64, 0.72]
         },
         airHaze: {
-            enabled: true,
+            enabled: false,       // replaced by stable front haze using terrain distance
             scaleHeightKm: 8.5,
             density: 0.16,
             gain: 1.0,
             maxAlpha: 0.45,
             color: [0.58, 0.64, 0.72]
         },
+        frontHaze: {
+            enabled: true,
+            scaleHeightKm: 8.5,
+            density: 0.22,
+            gain: 1.0,
+            maxAlpha: 0.65,
+            color: [0.58, 0.64, 0.72]
+        },
         model: {
             enabled: false        // legacy full atmosphere model remains off
         },