Global volume, when using render view seems to only be working if i have the volume material window open, and change the absorption distance value...
If you mean in an offline render (global doesn't seem to be working in IR), it's not a bug as such as the Absorption distance in a Corona Volume material starts at a default of 0, which would indeed give no effect in the rendered scene. This is the same in 3ds Max, and most likely by design as the actual distance required will be unique and wildly varied for each scene, so there's no "good" default value and best to set it to 0 to encourage / remind people to set a value that works for that scene :)
Let me know if you meant something different, though! For example, once you have set an absorption distance, there's no need to keep the material window open, as it would be a bug if that was happening for you (it isn't happening here).
I understand how global volume works... I'ts all correctly set up (3500 value distance for example) ... its just that i need to have the volume material window open and click anything inside for it to work in **render view again (you know...the quick rendering of any viewport which im sure most here use often). Regular rendering in picture viewer works fine though...
So, when i click render view first time after setting up my volume material, placing it in global volume...it's gonna render just fine... but if i click renderview again...it will render without volumetrics. Changing any value (for example clicking and unclicking single bounce) fixes the volume material rendering for the moment...then i have to change something in the volume material options menu again
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