Transform tangent with modelViewMatrix

src/renderers/shaders/ShaderChunk/defaultnormal_vertex.glsl.js

@@ -17,7 +17,7 @@ transformedNormal = normalMatrix * transformedNormal;
 
 #ifdef USE_TANGENT
 
-	vec3 transformedTangent = normalMatrix * objectTangent;
+	vec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;
 
 	#ifdef FLIP_SIDED