DarkMatter
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- Oct 5, 2007
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As I've stated those changes provide minimal IQ change to none. A person can pick and choose what they want to achieve a reasonable frame rate:
-Disabling POM in favor of AF is a common practice that many have used when Crysis is released. The effects are minimal and from what I've seen hard to distinguish. In any case it's either POM or AF you can't have both.
-SSAO does not have a high impact on objects as much as you make it out to be. It only adds shadows to the object itself. Then can be minimized to a degree where FPS can be increase.
-Motion blur is very overrated and many disable this without me posting it. The amount of blur induced with moving objects and just turning 90 degrees is in far excess to real life. If there is nothing wrong with your vision turning your head 90 degrees does not induce blur. Objects moving about as they do in this game do not induce blur as it does in this game. For me as well as many others this feature is turned off.
-Glow is something that can be turned off and would actually sharpen objects in the distance instead of blurring them with a glow effect.
-Static physics is part of the optional selection and it's a personal taste if a person wants it on or off. Depending on frame rates if it's not important it's something that can be turned off. This has no effect on IQ that's why I added it as an option.
In all what I suggest does offer some IQ trade offs but from what I've seen are minimal. Unlike the r_colorgrading=0 depending on where/what you looking at the IQ can be drastically changed. For example 1 and
Example 2:
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The use of color grading as you suggested offer as much change to IQ if not more then what I suggested when a person is in shaded areas. Don't get me wrong, reducing/removing colorgrading offers little IQ change when it's sunny outside but when you are in shaded areas IQ is altered. Now don't take this the wrong way, the photo does show a 1.0 FPS improvement. However, when in shaded areas without sunlight is this the level of IQ people are willing to deal with? IMO, they would look for other alternatives and perhaps use this as a last resort.
I think we can agree that the goal is to offer some level of performance boost with as little to no IQ changes as possible. However, it's unavoidable that IQ will change to some degree. In the end it will be up to the end user to decide on how they will balance the scale of IQ vs performance if they are having a problem.
Well part of my point was that changing those DO NOT have as much of an impact on performance as those two. FOR ME at least changing all those together don't offer as much performance boost as one of mines alone. SSAO only changes few decimals when disabled, same with POM, motion blur, etc. agree all the settings change the image to the same degree, to tell that in some way. But colorgrading mostly alters the whole image tone, while the ones you suggested reduce the detail. It's very possible to attain similar results of colorgrading by tweaking the monitor, for example. Nothing will return you the bump detail of POM, the lighting of SSAO (it has nothing to do with self shadowing BTW, it's ambient occlusion, http://en.wikipedia.org/wiki/Screen_Space_Ambient_Occlusion, http://en.wikipedia.org/wiki/Ambient_occlusion) or the vitality of dynamic foliage.
Of course it's up to each to decide, but in no way colorgrading affects IQ more than the others. It does alter the IMAGE LOOK more, but not IQ. All others are dependant on geometry, light placement and bump mapping in order to create realistic looking objects. Colorgrading alteres the general tone of the image, using an algorithm that depends on the amount of light. Nowhere near what all the other things add up to the IQ.
Motion blur amount is too personal to disagree though.
EDIT: Hmm I just tried a similar place as the one on your Example1 and colorgrading has nowhere that same impact as it does for you. Just look at my examples, there's not as much of a difference. I wonder if it is graphics brand dependant?
EDIT2: e_lods default is 1, enabled, and it does have a great impact on performance, but not much in IQ as you said. Dissabling would be stupid as all games have been using it since... I can't even remember when. I confused it with e_lod_min or e_lod_ratio, which do reduce IQ a lot.
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