Hello 2 all

I have been experimenting with lightfog and transparency maps.

I had an idea on how to generate the light beams for my underwater scene, but I am having trouble getting this setup to work properly.

Ok I have a plane with a blinn applied to it I have mapped a file to the transparency of the blinn, just added a simple checker texture, for this test.

I added a spot light, and added light fog to that and placed it above my plane shining down. when I render It does,t cut out the black squares in the checker texure and allow the light fog to come through. Also I get that harsh light cone on the black(transparent areas) of my plane. Also on the white areas of the plane.
Ok this is just a test, but how can I get the result I am after ??

Any help on this would be great.

Thanks

Andy Gee