Here is previous render (in full resolution) but with caustics disabled (hybrid mode). I noticed that some deep darked parts now are bright (probably more photos has been located in dark corners because glass is transparent for them) but noise is still at the same level. It’s not bad for me because it’s scene where source of light is far,far away from camera (windows holes are 20-22 meteres from camera) and really low amount of photos is traveling to camera. Probably after 150-200 minutes of rendering this picture will be clean at full resolution - but i prefer to render it to 2000x2000 in 70 minutes and then make a 50% resize 
Thank you for info about how refraction mode works:)
You are very experienced in Corona and i believe You:) i’ll check ALL material in scene, maybe some shader has REFRACTION enabled with bad mode, or some bad geometry is somewhere…It’s not commercial scene - i made it for fun only, but i remember that VRAY has ben killed with these interior - after 150 minutes of rendering (very high setting in vray and high subdivs multiplier) image was noissy and in few places vray has no chance to get good shadow on small details. In this case (Scene) CORONA has won:) Maybe more noise is here but no artifacts, no problem with IRRADIANCE settings.
you used lights or mesh planes to illuminate the scene?
disable Bitmap Proxies / Paging in Max to get more speed
use PT HD cache, in the long run you get less noise.
regards
i used only one light - CoronaSun. There is no other light (or meshes) as light source.
Now i’m rendering the same view with PT+HD (thanks for info) - maybe this mode will help.
PT+HD is a great solution in my case:) the scene is less noisy and i recognised that in my scene there was 3 VRAY lights hidden which destroy lighting. Now i’m sure that on scene is only 1 light source - Corona SUN.
Final render is absolutely good for me. 65 min rendering - it’s awesome and Vray is unable to do the same effect for this scene in the same time on my workstation.
I don’t like the stretched FOV and shaders could be better but it’s still nice for a WIP.
btw, the thread’s title should be HRIS’ WIPs (optionally: CHRIS’S WIPs). I can understand that not everyone is perfect at English but come on… I’m really surprised with all these “Hi guy’s!” or “My work’s”.
But this topic is titled “HRIS WIP’s”…
OK now i see…i remove “'” and now “s” is on the end title.
Looks amazing good job!
Looks good, but shouldn’t that cage around lightbulb throw some shadow on walls?
hm…interesting…i have only ONE corona light (sphere) inside bulb (radius 1.5 cm). Nothing fake, pure render…
dual zeons seems to be the way to go or couple i7 5960
In that case, light bulb is likely too big, wires too thin and too close to light source and walls too far away for shadows to be clearly seen :]