I want to show a comparative test of two renderers, vray and corona.
The interior is very dark and a little direct light, so there is a big load on the GI calculation (Primary and secondary).
I was not able to achieve high-quality rendering of Vray, using for the primary bounces Irradiance Map.
In niches on the walls was always dirty. To avoid this, we would have to do a lot of fake, that to me is not acceptable.
So the only way left for the primary bounces use of Brute Force engine with more subdivs (70), because of this highly risen render time.
I tried the same set up shaders and direct lighting.
In the end, as you will see, the render time Corona is much smaller than the Vray and better quality and realism.
With this example I want to show that the Corona is better vray, even in alpha stage!
Sorry for my bad English!