Transparent object create opaque alpha channel. How do you get transparent objects over a transparent background? I have a transparent object that I am rendering without any sort of background, ie film is set to "transparent."
Rather than have slightly transparent pixels, the alpha channel is black and white, no greys.
Is there a way to render a transparent object over a transparent background in such a way that the alpha channel is reflective of the transparency of the object, not just the shape of it?
Not presented as an answer so much as extension of comments above: You can add a fresnel and holdout to your material to generate other alpha-node output characteristics...