Hello,
I find that when rendering with premultiplied alpha, the render has "edges" that keep the colour of the Octane sky enviroment. This prevents compositing, were after inserting on say, Photoshop, another background, the edges are painfully obvius. The keying should be fading to pure transparent, not the colour of the sky. Is there something wrong that i am doing? Any other way of saving the image with correct alpha?