light effects

I wanted to know how the lights in the cathedral were made .

http://mixed3d.free.fr/roee/cathedral.jpg

The effects are well done.

If you forget all the shaders effects, you find a shape !
( some extrusions from the windows are used ).

I played with here :

http://mixed3d.free.fr/roee/cathedralalainlightsgod.wrl

Here it is just the shape and some transparency ,
but if you use too the multitexturing etc as did the guys ,
you get great results.

For all stupid guys saying that vrml is dead , LOL

reedit : I add that one :

http://mixed3d.free.fr/roee/cathedrallightsforbabel.jpg