To be honest it is a little bit too bright and I am gonna remake it. In this scene I was testing emissive plane as a only source of light and I think results are pretty nice.
The micro shadows, GI and contrast, including sharpness, in Corona is the best on the market.
Corona is only developed for rendering. There is no software on the market that will beat this.
Vray could make it, but not 100%
D5 is approx 80%, in case the rendering is outstanding.
You are right. It also depends on model geometry complexity and materials. We will see what d5 will show in future updates. All these engines are based on ray-tracing but apparently different algorithms.
It is impressive! At the beginning of the development of Corona, the developers announced that they would develop the best render engine on the market for architecture. They did it.
It is always good to set a goal. That motivates.
I checked this scene in 2.0 version and GI and shadows are much better. It is significant improvement. D5 is chasing the biggest engines on the market.