Black parts (alpha) adding to render time

Hi all,

If rendering an image for a montage, or a render select is needed, the empty space of a render is taking into account. I always need to do regions in order to speed up a render, such as below (which is a simple one compared to some I need to do).

If this is not done all of the empty space drastically adds to the render time. This is annoying enough for montages but if a fix is needed for an animation, sometimes it’s easier to just rerender the shot.

Am I the only one who has this issue? Is there a setting in Max/Corona where it ignores empty space?

Thanks

Hi, this has already been reported. We will see if we can improve it. Meanwhile, you can combine Corona’s “Render Selected” with 3ds Max “Auto Region Selected” in the Common tab. In my tests it was 2 minutes (off) vs 12 seconds (on).