Motion blur descreases or increases fps ?

[pl0x]

I always said that motion blur increases fps in games but some people say the contrary.

 

[sizzling]

Motion blur is related to monitor response time not fps. Higher fps will give a smoother moving image but that is different

 

[Shaun o]

Err no, because it`s drawing double the frames. An after image of the frame based on the position you were at prior to moving. = More data displayed on screen at the same time.

 

[sizzling]

Shaun I cannot work out who's post you are disagreeing with.

Motion blur is caused by a residual image of a previous frame. That residual frame exists because of low response time of the monitor.

 

[pl0x]

But when you enable motion blur on games, it blurs the image when you move, shoudnt that give you more fps since is not rendering the actual image ?

 

[turbopixel]

My understanding of Motion Blur is, it is an special effect applied AFTER rendering the full image. Technically, I don't know, I just assume this. Maybe there are different algorithms for generating Motion Blur effect. Why don't you try it out with your actual hardware and software, if you have the games? If you can't see any fps difference, then the it is probably negligible.

 

[gamerk316]

Motion Blur in games is applied after the image is created, so the GPU is doing more work then if it were disabled. So I'd expect FPS to decline slightly. Granted, the cost is very low compared to other enhancements, but it's still a cost.

 

[sizzling]

I am no expert so here http://www.practical-home-theater-guide.com/lcd-response-time.html

My understanding is it has nothing to do with a gpu or video source, its caused by monitors which cannot handle fast moving images

 

[gamerk316]

Ok people, we're talking two entirely different things here.

The OP is asking about the Motion Blue effect that is applied in games to give a motion blur effect when the camera is rotated. This is different then the motion blur that occurs due to poor LCD Response Times.

 

[sizzling]

Is that what he means, doesn't read like it to me

 

[bystander]

Is that what he means, doesn't read like it to me

Considering he was talking of it as if he had control of that option, he'd have to be talking about the in game setting.

Display motion blur has no impact on FPS.

 

[pl0x]

Is that what he means, doesn't read like it to me

Yes, im talking about the option you have in the graphic settings to enable or disable motion blur.