sadNES unfortunately, I can't get the blending modes work the way I want. Essentially, we want the shadow beams to cut thru an other layer that will hold a sun glow. The problem is that the blend modes ignore black/white values (gray-scale masking) and only care for opaque areas. I can't find a way to make the shadow casting layer (using destination out or source atop blend modes) to cut thou an other layer below that will have the Sun and the glows.
I had to resolve in some fake workaround, that use the shadow layer with an overlay effect that cast a darker sky color, and some texture glows/rays to fake the Sunlight.
See the attached capx.
[attachment=0:1wltx1vi][/attachment:1wltx1vi]
I am guessing that this isn't very light on resources and I am not sure if this is the correct way to spawn the ShadowObjects on the Cloud Image points. Feel free to improve upon it