Blender Eevee Learning

So while working on a project for a client im getting to terms with all things EEVEE. I found some restrictions with volumetrics , which can not be bound to a geometric shape but rather uses the bounding box of that shape. So for now I just did two renders and some merging and post in a graphics editor so I could have a slight feel of light rays coming through the window. There is still limiting resources for what tricks can be used here , so im experimenting and waiting for others to come forwards with some good hacks ;)