Hi, Babylon.JS Fellows 
I want to make image vignetting and animation with help of SpotLight.
I have been playing a lot with Babylon spot light and cannot avoid sharp inner circle where light begin decrease.
Check this out: http://www.babylonjs-playground.com/#1IC7R#1
Light falls off to the dark very smooth, but starts falling off with sharp line. I tried to play with properties, but cannot get result of smooth beginning of falling off. When I use this light in animation, I can clearly see this sharp line, where lite begins to decrease, and it is bad. Maybe someone know what can I do with it. changing of position, exponent, angle, intensity properties does not resolve this strange behavior.
Thank you!
