Changed normal of the ground to GL, Now the normal mapping is correct.

engine/kepler.js

@@ -81,6 +81,8 @@
 
 			this.assimpLoader 	= new assimp();
 
+			this.preloaderCleared	= false;
+
 		}
 		
 		addViewport(viewport){
@@ -142,9 +144,18 @@
 		 */
 		tick() {
 
+			if( this.preloaderCleared === false && this.resources ) {
+
+				this.resources.hidePreloader( );
+
+				this.preloaderCleared	= true;
+
+			}
+
 			requestAnimFrame( this.tick.bind( this ) );
 
 			this.render();
+
 		}
 
 		/**