Fix

Tools/Gulp/config.json

@@ -735,6 +735,7 @@
         "hdr" : 
         {
             "files": [
+                "../../src/Math/babylon.sphericalPolynomial.js",
                 "../../src/Tools/HDR/babylon.cubemapToSphericalPolynomial.js",
                 "../../src/Tools/HDR/babylon.panoramaToCubemap.js",
                 "../../src/Tools/HDR/babylon.hdr.js",

src/Materials/Textures/babylon.baseTexture.ts

@@ -62,7 +62,7 @@
         public lodLevelInAlpha = false;
 
         @serialize()
-        public lodGenerationOffset = 1.0;
+        public lodGenerationOffset = 0.0;
 
         @serialize()
         public lodGenerationScale = 0.8;