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Dear all Maybe this is a dummy question, but I couldn't figure out a workaround solution. I have created a scene using the standard var createScene = function() {}, after which I make MULTIPLE calls to import meshes BABYLON.SceneLoader.ImportMesh(). I try to display the Preloading screen using the following code var renderFunction = function () { if (scene) { var remaining = scene.getWaitingItemsCount(); if (remaining !=0) { engine.displayLoadingUI(); engine.loadingUIBackgroundColor = "green"; engine.loadingUIText = "Please Wait, An Incredible 3D Online Shopping Experience is Streaming: " + (remaining ? (remaining + " items remaining") : ""); } else if (remaining ==0) { engine.hideLoadingUI(); } scene.render(); } }; engine.runRenderLoop(renderFunction); The problme is that scene.getWaitingItemsCount() fluctuates, it decreases than increases, then decreases until it gets to zero. Is there a way for Counting to wait for ALL meshes/textures to QUEUE before it fires?