im having some trouble with making my water shader transparent im basically using the clear_calm1 shader with some minor tweaks.. this is the shader im using
Right now your only blending the second stage on top of an opaque first stage; instead of blending the first stage with the back ground, then blending in the 2nd.
those beams would look more realistic if they began from the floor and fade as they rose up..
generally beams are visible due to fog or smoke in an area, and as they are nearly opaque at one end, reversing them so they touch ground on the opaque end, will cause the light to appear as if from the sun..
now it looks as if the hole is projecting the beams..
or you might try an other method altogether as the light tends not to be sharp edged in cases such as these..
the above pic turns the beam into a * shape, and adds a circular version on the ground