Gold Dipped Grain Progress

Posted in response to a query;-
(the final image and scene information can be found here... [link] )

Direct comparison of the results of pushing the samples per pixel to crazy levels. The rhs shows the result after 24 hour rendering to 12,000 s/p. The centre image is the output of the Lux render window shown on the lhs, after 257 hours and 126,320 s/p. Surprisingly the efficiency is only 95%.

I repeated this comparison every 24 hours to see if there was any difference in perceived quality. This is the difference between the first check point and the last check point. As can be seen here, the 12,000 s/p render is reasonably good. the difference is most evident in the foreground of the water, and if you look carefully, you can also see that the reflections in the torso are sharper and better defined.

The last two comparisons that I did at 100,000 and 112,000 showed no visible change to my eye. I let the render carry on to the 126,000 s/p as a double check of this.


P.C. specs for this render;-

Operating System: Windows 7 Professional 64-bit (6.1, Build 7600) (7600.win7_gdr.111118-2330)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: GA-770T-USB3
Processor: AMD Phenom(tm) II X4 965 Processor (4 CPUs), ~3.4GHz
Memory: 16384MB RAM

Graphics;- (running in dual [28"] monitor mode)

Card name: NVIDIA GeForce GTX 275
Manufacturer: NVIDIA
Chip type: GeForce GTX 275
Display Memory: 4077 MB
Dedicated Memory: 877 MB
Shared Memory: 3199 MB
Current Mode: 1920 x 1200 (32 bit) (59Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: HZ281H
Native Mode: 1920 x 1200(p) (59.950Hz)
Output Type: DVI