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I tried rendering hypervoxels with a null emitter and kray can't render it with alpha even in image viewer the alpha is not there. Is this another known bug?
This is another most wanted feature for compositing.

bump

So the problem is that no alpha is produced from hypervoxels?

yes. is this a bug? hdi instance has alpha channel in its own volumetric renderer.

Just checked it and you're right hypervoxels don't really affect alpha, I'll file in a proper bug report.

Thank you. I hope this gets fixed in the next build . Its very hard to switch from kray to lw and change lighting,etc again for elements that can't be rendered in kray.