System units and Global Illumination

[art-MIXER]

Hello everyone, I have a question - is there a difference in the calculation of global illumination by using different system unit ? For example, if the scene is constructed in centimeters and the same scene is built in millimeters , will result identical to the final image , both in time and in quality ? Thank you all in advance for your reply.

[Ondra]

no, no difference

[art-MIXER]

Thanks for the answer. What about converting materials if a switch to millimeters centimeters, the radius of influence AO becomes 10 times more. It's sure to affect the calculation of GI

[Ondra]

of course, also DOF changes with scene scale. But that is changing the scene input description, so it is logical that you will get different result. I was thinking you were talking about things like speed, artifacts, noise, etc.

[art-MIXER]

Mostly I asked about it and - it was already passing second question)
Thanks for the clarification, just tortured me this question. I always convenient to design the interiors in millimeters, but what if somehow faster in centimeters or qualitative miscalculation. Now I am calm and I will work as before in millimeters.

[Fibonacci]

Why don't thinking in mm3 ? The mm is a bit too 2D !  ;D