Logo Animation - Volumetric Light on white/transparent Background...

Hi there - i hope anyone can point me in the right direction…

I’am creating a Logo Animation on a pure white/transparent background and a light moving behind it casting “godrays”…

I’ve been playing around with the volume shaders in the world and on materials and lights but nothing seams to work…

If I apply the Shaders to the World the white background gets darker and objects/materials pass trough the Logo…

Can anyone point me in the right direction please ?

thx

Tutorial Volumetric light : https://www.youtube.com/watch?v=FdtskdgYE08