Merge pull request #7251 from WestLangley/dev-world_normal

envmap_vertex: Corrected calculation of world normal

src/renderers/shaders/ShaderChunk/envmap_vertex.glsl

@@ -1,9 +1,9 @@
 #if defined( USE_ENVMAP ) && ! defined( USE_BUMPMAP ) && ! defined( USE_NORMALMAP ) && ! defined( PHONG )
 
-	vec3 worldNormal = transformDirection( objectNormal, modelMatrix );
-
 	vec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );
 
+	vec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );
+
 	#ifdef ENVMAP_MODE_REFLECTION
 
 		vReflect = reflect( cameraToVertex, worldNormal );