Hi everyone, I've had issues with some things that I'd like you to review maybe. Here is a simple PG scene, combining two excellent demos : water and fire materials. A candle is over a calm beach,  http://www.babylonjs-playground.com/#1SLLOJ#224 #Question 1 : if you move the camera just to look up, right from starting position, you'll notice the reflective texture on water becomes glitchy at the bottom of the canvas. How to avoid that ? Next, I'd like to apply blur post-process, b