Hi all,
Well this is my first attempt to use Corona and I am using a 3D model provided by Preston Plat. If you are interested have a look
here.
Since I am new to Corona, please forgive me any stupid questions. I am trying to light this scene with a HDRI map and I found this video:
The workflow is something like:
Create a plane for each openning.
Assign the Corona portal material to each plane
Check the HDRI on the Environment Settings
Hit Render.
Is this the best workflow? I ask this because I cannot see any difference between before and after using the portal material.
Render so far:

Thanks in advance.