Motion blur auto photography for ac

eSEA One · Jan 8, 2015

@BATINA74 Looking good and it looks like the rims have caught up with the tyers
Maybe give us your settings or what you did to achieve these.

eSEA One · Jan 8, 2015

Any good tips I will put in the OP crediting the originator, like I have done with @vfdesignz tip
I will try and keep this updated

Chukill · Jan 10, 2015

Dont work for me

Dookie · Feb 3, 2015

Doesn't work for me either. I followed the instructions but there's no blur in the F5 cam in the replay. Did something change with AC-Updates?

Robbiexsstar · Feb 12, 2015

eSEA One said: ↑

In Photography motion blur is achieved through:

Slow shutter speed (longer exposure but this can lead to overexposure in bright environments)

Aperture - High f/stop numbers, large number = small aperture = less light, this compensates the overexposure. However this can make a big depth of field- more in focus, so the far background can be in sharp focus and this might not be what you want lower f/stop's create a shallow depth of field (DOF) but let in more light

Low ISO (sensitivity) numbers (this is another option that counters the overexposure that you might need if using a shallow DOF)

Panning - moving the camera with the car (subject) this keeps the car in focus

@AC Support Can we apply these principles to the AC camera with what you have coded?
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- Slow shutter speed: is not avaible, but you can set Aperture in any Post Processing set.
- Aperture: you can change Fstop value in any Post Processing set.
- Low ISO: you can simulate smething similar with exposure, but it's not working exactly like ISO in a real camera
- Panning: turn on "motion blur" and take a picture with F5 o F7 camera. Picture background will be blurred as like you use basic panning technique.

AC photomode is not good as FM4, but it's have a lot of realistic function.
I think KS don't want develop DSLR function because it's not user friendly.
For example: "FOV" parameter is used instead lens mm, because many people could not understand difference between 14mm lens and 300mm.

F430_458_F12 · Feb 19, 2015

Haha. Then we'll get nothing but images of cars with blurry backgrounds. LOL. There's only two things a car can be doing...pick your style, go with it. If I and my pictures bother you...better close your eyes

Ledanek · Feb 25, 2015

will try this technique
thanks for sharing

hiroismyhero · May 16, 2019

thank you perfectly works

Professor_NicNacs · Jan 25, 2022

eSEA One said: ↑

The one thing that I notice here with a lot of images (not all) that the cars look static, no motion blurred wheels and backgrounds! (I am not going to point these images out , don't want to offend anyone) the cars look like they are parked when they are really going at speed. This really bugs me. Some folks get the wheel spin in the image but lack the motion blurred background, this I see a lot and kind of has a bit of a disconnect . Dont get me wrong there are some who do have both and these definitely have the realism look.
IRL Cars go fast, cameras can shoot really fast but a good a photographer will not use fast shutter speeds, they will shoot at relatively slow speeds, with panning the camera to capture the speed thus the background and wheels are in motion blur. (like these below, not saying that I am a good photographer but this effect is what I am trying to achieve)
View attachment 47747 View attachment 47748 View attachment 47749 View attachment 47774

It is all too easy to use a fast shutter speed to get the shot but the result is a static looking image. Like this
View attachment 47753 and this View attachment 47752 a slight bit of wheel motion here View attachment 47751 but still looking a bit static.
Now I have not really got into exploring AC photomode much yet but from what I gather it would seem to me that this motion blur is not so easy to achieve. I will look into this and explore the possibilities;
Anyone in the knowhow feel free to give the AC photographers your advice.
_______________________________________________________________________
Here are some of the great tips from posters in the thread
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From @vfdesignz It's possible, sort of. You have to active the free cam in AC.
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Go in Steam\SteamApps\common\assettocorsa\system\cfg and open the assetto_corsa.ini

Set ALLOW_FREE_CAMERA to 1.

Now open the camera_onboard_free.ini

Replace the code with that one:
[CAMERA_SETTINGS]
ROTATION_SPEED=0.1
ESC_DOF_FACTOR=1
MOUSE_LOOK_SPEED=.02
MOVE_SPEED=1
MIN_MULT=0.1
MAX_MULT=3
FOV=35
EXPOSURE=35
MOVEMENT_DELAY=0.2
SPHERICAL_COORDS=0

Go in AC, turn on Motion blur, drive the car around, go to the replay and now press F5. Now you can position the camera with W, A, S and D as you want to and the background should be blurred.
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Motion blur auto photography for ac

eSEA One Hardcore Simmer

eSEA One Hardcore Simmer

Chukill Simracer

Dookie Hardcore Simmer

Robbiexsstar Hardcore Simmer

F430_458_F12 Alien

Ledanek Racer

hiroismyhero Gamer

Professor_NicNacs Rookie

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