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Interesting Showcase of how small changes impact render time
Interesting Showcase of how small changes impact render time
Started by FrankB, December 22, 2006, 07:47:32 AM
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FrankB
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Posts: 3,597
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Interesting Showcase of how small changes impact render time
December 22, 2006, 07:47:32 AM
Last Edit
: December 22, 2006, 09:00:09 AM by FrankB
VisionBlue has rendered two of the same images, with just slightly modified settings.
The perceived overall quality is close to identical, while he was able to save ~47% render time.
All details in the images below:
Example 1:
http://hitkarussell.de/virtuellart2/terraart/terragen/testrender1.jpg
Example 2
http://hitkarussell.de/virtuellart2/terraart/terragen/testrender2.jpg
Cheers,
Frank
FrankThomas
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Re: Interesting Showcase of how small changes impact render time
#1
December 22, 2006, 07:53:12 AM
ummm you know those are both the same file ?
(I assume the second one is testrender2.jpg)
and for the record, I prefer the second one for some reason
EoinArmstrong
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Re: Interesting Showcase of how small changes impact render time
#2
December 22, 2006, 08:26:20 AM
AA really hammers you, apparently. The quality isn't so noticable for this (low/medium-sized render), but AA might have a much larger impact on large renders. Still, this is really useful to know - thanks!
Njen
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www.cyan-eyed.com
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Re: Interesting Showcase of how small changes impact render time
#3
December 22, 2006, 08:33:46 AM
I don't think it's the AA, but more to do with the Detail and GI settings. AA is just a 2D post process and is quite cheap compared to the other settings in terms of cpu power.
oggyb
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You think you've got a slow computer. . .
Location: Blackburn, UK
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Re: Interesting Showcase of how small changes impact render time
#4
December 22, 2006, 11:40:34 AM
I'd hazard a guess that the biggest increase in time will be got from GI. I have mine on 1 for the renders I've done so far. 2, and the render time almost doubles. 3 and I have to cancel at bed time
M.
Oshyan
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Holy snagging ducks!
Location: Outland, CA, USA
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Re: Interesting Showcase of how small changes impact render time
#5
December 22, 2006, 06:12:46 PM
GI does have a significant impact. AA should be relatively less so but still has a definitely effect. It's good to see concrete example that "higher is not always better". In fact I prefer image #2 as well, with the lower settings. I do find it odd that he used such a strange and precise decimal value for detail in the 1st though. It would have been a better test if detail had been the same and only AA and GI changed.
- Oshyan
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