SSAA Auto?

[flyinpoons]

What does this setting do?

[Marked One]

anti aliasing
http://pcgamingwiki.com/wiki/Anti-aliasing_(AA)

[em_t_hed]

http://www.geforce.com/whats-new/articles/metro-last-light-graphics-breakdown-and-performance-guide#last-light-anti-aliasing

[flyinpoons]

I guess reading is difficult, they never mention the auto setting there, it mentions off, 2, 3, and 4, never auto.

[em_t_hed]

Originally posted by fatoldguy:

I guess reading is difficult, they never mention the auto setting there, it mentions off, 2, 3, and 4, never auto.

thats what i said

isn't there a 0.5 setting too?

[Arbitard1171]

i'm also curious. i tried switching to it and it just put it back to "off" again, so maybe it just auto-selects the best setting based on your GPU.

and 0.5 makes the game look WORSE. it renders the game in lower resolution and then expands it to your current resolution.

[Septim]

When i enable SSAA I lose about 17 FPS makes no difference to the graphics for me so i disable

[Eyeless]

for me, auto does nothing, and 0.5 looks horrible.

[MooP]

SSAA has a huge preformance loss when you use it, By defalt the game has its own AAA built in so imo no reason to use SSAA.

[76561198007003340]

There are two approaches to anti-aliasing in Metro LL, FXAA and supersampling (SSAA). In higher anti-aliasing modes, we use both of these techniques together. Due to how our rendering works, we cannot use traditional MSAA.

FXAA is a post processing filter that 'intelligently' blurs the image trying to get rid of jaggies (and high contrast pixel differencies). It gives really good results for the amount of computing power it uses. However, as it doesn't provide any extra information it cannot address sub-pixel errors.

Supersampling, as the name suggests, improves image quality by rendering more than one pixel worth of data for each pixel that is displayed on monitor. How much extra data there are depends on SSAA mode. As this is a brute-force approach, it is very expensive from performance point of view. If you have performance problems, the first thing to try is to reduce SSAA level from the launcher.

For example for 1920x1080 (1080p) resolution

2xSSAA will render 2550 x 1430 image, apply FXAA and scale it back to 1920x1080.
3xSSAA will render 3180 x 1790 image, apply FXAA and scale it back to 1920x1080.
4xSSAA will render 3840 x 2160 image, apply FXAA and scale it back to 1920x1080.

[BWX]

2 xSSAA with everything else cranked up @ 1080p definitely looks better than with no AA.
3x SSAA looks even better, and I can really tell the difference, but that really cuts into FPS, it is still totally playable, but not as smooth feeling.

With the new update, it seems there is a performance boost everywhere, people on the edge before might want to try the setting again.

[Philly Wonken]

It kills your framerate...