Just playing around with some interior lighting. I have read some tips from the forums and will be trying to decrease the noise. They are as follows:
01 tiny geometry/light emitters generate too much noise. Try to enlarge them or balance them increasing samples.
02 Sky portals are useless, you can't power them. Use planar lights balancing warm and cold temperature. Make them transparent.
03 Put a planar light on the back of the camera, make it transparent. Play with rotation facing the light to the ceiling.
04 Create fake apertures/windows/holes to fill dark areas.
05 Don't use glass within the windows, hide them (layer off)
06 Reduce GI bounces to 8 except you have many glass objects all of them facing the camera.
07 Create an image larger than the final result, 30% more. Shrink it in PS
08 Use a denoiser Nik filtering PS and apply it with the area tool.
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