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Why is the texture "Power- Value 0.9 and not 1.0 by default?
Posted: Thu Dec 05, 2013 11:31 am
by illmonkey
This has most certainly been answered somewhere in the forums, I did my best to look for it here by searching "power" in all topics and skimmed thru all posts, also did the same in the manual... so...
The Power-value in the ImageTexture node is set at 0.9 by default, are there any reason for this? My guts tells me to crank it up to 1 every time for some reason.
Re: Why is the texture "Power- Value 0.9 and not 1.0 by defa
Posted: Mon Dec 09, 2013 2:28 am
by ASyme1
I wonder the exact same thing.
Alec
Re: Why is the texture "Power- Value 0.9 and not 1.0 by defa
Posted: Wed Dec 11, 2013 1:02 am
by Rikk The Gaijin
Yes, that has bothered me since the beginning. I'ts like in Maya, where the diffuse intensity is 0.8 by default... WHY??? WHY????
Re: Why is the texture "Power- Value 0.9 and not 1.0 by defa
Posted: Wed Dec 11, 2013 1:40 am
by abstrax
I'm not sure, but I think the original reasoning was that a path tracer really doesn't 100% reflective surfaces. But we have set the default to 1.0 in version 1.21.
Re: Why is the texture "Power- Value 0.9 and not 1.0 by defa
Posted: Wed Dec 11, 2013 2:56 am
by grimm
I remember a conversation about this but the search function in phpbb is so bad I can't find it. I think you are right that it was set that way because in reality no surface would reflect 100% of the light hitting it. And as Radiance posted in another thread, if you went above 1 the surface would start to emit light.
I also remember something that if you push the values to 1 it would slow the render down a bit, but I'm probably miss-remembering it.