Assetto Corsa Competizione

Assetto Corsa Competizione

Jetkape Apr 22, 2019 @ 6:18am
Virtual mirror only?
Hello everyone,
I was wondering if there is a way to only have the simple virtual mirror without having to have the mirrors of the car enabled because it lowers my performance significantly. I drive in the dashcam perspective so I don't see the car mirrors anyways but I'm not sure if they still have to be rendered and decrease my performance. Is there some ini file that can be edited to only have the mirror on the top half of the screen? Thanks in advance, I know this is a very specific question and I don't have much knowledge about the coding and working of these kind of things.
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Showing 1-4 of 4 comments
LauraSaurusRAWR Apr 22, 2019 @ 6:37am 
Hey there,
I just rechecked and tried. The virtual mirror seems to act like a normal mirror and is unseperably tied to the "mirror quality" setting. If you turn this off, the virtual mirror will dissappear, even when enabled in hud.json (hud config file), or ingame.

Though when you do not see the other car mirrors they are not rendered. So they wouldnt make your performance worse. So I assume your performance loss comes from the virtuall mirror only.

If you wish to try this for yourself, do the following:
Start any race against AI and watch the FPS at the start while standing still. First with mirrors on. Remember how many FPS you get. Quit the race, to main menu.
Then you turn "mirror quality" to "off". All while being in a perspective where you wouldnt see them anyways. Start same race against AI again. Have a look at FPS again. They should stay the same.

You could go to the main menu and set "mirror quality" and "mirror resolution" to "low".
Mirror resolution actually has a significant impact since all the cars, trees, objects, etc. behind you will have to be rendered in the mirror aswell. So you basically render two pictures in HQ (with setting on max), since you have to render your normal view and then the view to the back compressed into the mirror.
Last edited by LauraSaurusRAWR; Apr 22, 2019 @ 6:41am
Jetkape Apr 22, 2019 @ 6:55am 
Originally posted by Lillycookie:
Hey there,
I just rechecked and tried. The virtual mirror seems to act like a normal mirror and is unseperably tied to the "mirror quality" setting. If you turn this off, the virtual mirror will dissappear, even when enabled in hud.json (hud config file), or ingame.

Though when you do not see the other car mirrors they are not rendered. So they wouldnt make your performance worse. So I assume your performance loss comes from the virtuall mirror only.

If you wish to try this for yourself, do the following:
Start any race against AI and watch the FPS at the start while standing still. First with mirrors on. Remember how many FPS you get. Quit the race, to main menu.
Then you turn "mirror quality" to "off". All while being in a perspective where you wouldnt see them anyways. Start same race against AI again. Have a look at FPS again. They should stay the same.

You could go to the main menu and set "mirror quality" and "mirror resolution" to "low".
Mirror resolution actually has a significant impact since all the cars, trees, objects, etc. behind you will have to be rendered in the mirror aswell. So you basically render two pictures in HQ (with setting on max), since you have to render your normal view and then the view to the back compressed into the mirror.
I just tried it in a practice sessoion while standing on the start/ finish line in Zolder: with mirrors set to off I get 100 FPS and with both settings set to low I get 85 FPS even though I can't see any of the mirrors without looking to the side. So for performance I guess it's best to keep them turned off, even if you physically can't even see them.
LauraSaurusRAWR Apr 22, 2019 @ 7:03am 
Originally posted by Jetkape:
I just tried it in a practice sessoion while standing on the start/ finish line in Zolder: with mirrors set to off I get 100 FPS and with both settings set to low I get 85 FPS even though I can't see any of the mirrors without looking to the side. So for performance I guess it's best to keep them turned off, even if you physically can't even see them.

I guess you kept the virtual mirror off for when you got 85 fps, right?
Thats unfortunate though. Maybe they could seperate the entities and give a second option that disables only "real" mirrors.
I personally do not mind them being rendered, but it would probably help a lot of people with medium, or low-end machines to run the game more smoothly.

Maybe someone knows how to trick the game into not turning off the virtual mirror while all othere.
Last edited by LauraSaurusRAWR; Apr 22, 2019 @ 7:12am
Jetkape Apr 22, 2019 @ 7:14am 
Originally posted by Lillycookie:
Originally posted by Jetkape:
I just tried it in a practice sessoion while standing on the start/ finish line in Zolder: with mirrors set to off I get 100 FPS and with both settings set to low I get 85 FPS even though I can't see any of the mirrors without looking to the side. So for performance I guess it's best to keep them turned off, even if you physically can't even see them.

I guess you kept the virtual mirror off for when you got 85 fps, right?
Thats unfortunate though. Maybe they could seperate the entities and give a second option that disables only "real" mirrors.
I personally do not mind them being rendered, but it would probably help a lot of people with medium, or low-end machines to run the game more smoothly.

Maybe someone knows how to trick the game into not turning off the virtual mirror while all othere.
I didn't set the specific setting to off since being in Practice mode disables your virtual mirror by default so it shouldn't have made a difference. I might just stick to both mirror settings set to low with a mirror view distance of 50 metres just to have the virtual mirror still available in races.
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Date Posted: Apr 22, 2019 @ 6:18am
Posts: 4